climate change in the philippines essay

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Introduction

Climate change is happening now. Evidences being seen support the fact that the change cannot simply be explained by natural variation. The most recent scientific assessments have confirmed that this warming of the climate system since the mid-20th century is most likely to be due to human activities; and thus, is due to the observed increase in greenhouse gas concentrations from human activities, such as the burning of fossil fuels and land use change. Current warming has increasingly posed quite considerable challenges to man and the environment, and will continue to do so in the future. Presently, some autonomous adaptation is taking place, but we need to consider a more pro-active adaptation planning in order to ensure sustainable development.

What does it take to ensure that adaptation planning has a scientific basis? Firstly, we need to be able to investigate the potential consequences of anthropogenic or human induced climate change and to do this, a plausible future climate based on a reliable and accurate baseline (or present) climate must be constructed. This is what climate scientists call a climate change scenario. It is a projection of the response of the climate system to future emissions or concentrations of greenhouse gases and aerosols, and is simulated using climate models. Essentially, it describes possible future changes in climate variables (such as temperatures, rainfall, storminess, winds, etc.) based on baseline climatic conditions.

The climate change scenarios outputs (projections) are an important step forward in improving our understanding of our complex climate, particularly in the future. These show how our local climate could change dramatically should the global community fail to act towards effectively reducing greenhouse gas emissions.

Climate Change Scenarios

As has been previously stated, climate change scenarios are developed using climate models (UNFCCC). These models use mathematical representations of the climate system, simulating the physical and dynamical processes that determine global/regional climate. They range from simple, one-dimensional models to more complex ones such as global climate models (known as GCMs), which model the atmosphere and oceans, and their interactions with land surfaces. They also model change on a regional scale (referred to as regional climate models), typically estimating change in areas in grid boxes that are approximately several hundred kilometers wide. It should be noted that GCMs/RCMs provide only an average change in climate for each grid box, although realistically climates can vary considerably within each grid. Climate models used to develop climate change scenarios are run using different forcings such as the changing greenhouse gas concentrations. These emission scenarios known as the SRES (Special Report on Emission Scenarios) developed by the Intergovernmental Panel on Climate Change (IPCC) to give the range of plausible future climate. These emission scenarios cover a range of demographic, societal, economic and technological storylines. They are also sometimes referred to as emission pathways. Table 1 presents the four different storylines (A1, A2, B1 and B2) as defined in the IPCC SRES.

climate change in the philippines essay

Climate change is driven by factors such as changes in the atmospheric concentration of greenhouse gases and aerosols, land cover and radiation, and their combinations, which then result in what is called radiative forcing (positive or warming and negative or cooling effect). We do not know how these different drivers will specifically affect the future climate, but the model simulation will provide estimates of its plausible ranges.

A number of climate models have been used in developing climate scenarios. The capacity to do climate modeling usually resides in advanced meteorological agencies and in international research laboratories for climate modeling such as the Hadley Centre for Climate Prediction and Research of the UK Met Office (in the United kingdom), the National Center for Atmospheric Research and the Geophysical Fluid Dynamics Laboratory (in the United States), the Max Planck Institute for Meteorology (in Germany), the Canadian Centre for Climate Modeling and Analysis (in Canada), the Commonwealth Scientific and Industrial Research Organization (in Australia), the Meteorological Research Institute of the Japan Meteorological Agency (in Japan), and numerous others. These centers have been developing their climate models and continuously generate new versions of these models in order address the limitations and uncertainties inherent in models.

climate change in the philippines essay

For the climate change scenarios in the Philippines presented in this Report, the PRECIS (Providing Regional Climates for Impact Studies) model was used. It is a PC-based regional climate model developed at the UK Met Office Hadley Centre for Climate Prediction and Research to facilitate impact, vulnerability and adaptation assessments in developing countries where capacities to do modeling are limited. Two time slices centered on 2020 (2006-2035) and 2050 (2036-2065) were used in the climate simulations using three emission scenarios; namely, the A2 (high-range emission scenario), the A1B (medium- range emission scenario) and the B2 (low-range emission scenario).

The high-range emission scenario connotes that society is based on self-reliance, with continuously growing population, a regionally-oriented economic development but with fragmented per capita economic growth and technological change. On the other hand, the mid-range emission scenario indicates a future world of very rapid economic growth, with the global population peaking in mid-century and declining thereafter and there is rapid introduction of new and more efficient technologies with energy generation balanced across all sources. The low-range emission scenario, in contrast, indicates a world with local solutions to economic, social, and environmental sustainability, with continuously increasing global population, but at a rate lower than of the high-range, intermediate levels of economic development, less rapid and more diverse technological change but oriented towards environment protection and social equity.

To start the climate simulations or model runs, outputs (climate information) from the relatively coarse resolution GCMs are used to provide high resolution (using finer grid boxes, normally 10km-100km) climate details, through the use of downscaling techniques. Downscaling is a method that derives local to regional scale (10km-100km x 10km-100km grids) information from larger-scale models (150km-300km x 150km-300km grids) as shown in Fig.1. The smaller the grid, the finer is the resolution giving more detailed climate information.

The climate simulations presented in this report used boundary data that were from the ECHAM4 and HadCM3Q0 (the regional climate models used in the PRECIS model software).

climate change in the philippines essay

How were the downscaling techniques applied using the PRECIS model?

To run regional climate models, boundary conditions are needed in order to produce local climate scenarios. These boundary conditions are outputs of the GCMs. For the PRECIS model, the following boundary data and control runs were used:

For the high-range scenario, the GCM boundary data used was from ECHAM4. This is the 4th generation coupled ocean-atmosphere general circulation model, which uses a comprehensive parameterization package developed at the Max Planck Institute for Meteorology in Hamburg, Germany. Downscaling was to a grid resolution of 25km x 25km; thus, allowing more detailed regional information of the projected climate. Simulated baseline climate used for evaluation of the models capacity of reproducing present climate was the 1971-2000 model run. Its outputs were compared with the 1971-2000 observed values.

For the mid-range scenario, the GCM boundary data was from the HadCM3Q0 version 3 of the coupled model developed at the Hadley Centre. Downscaling was also to a grid resolution of 25km x 25km and the same validation process was undertaken.

For running the low-range scenario, the same ECHAM4 model was used. However, the validation process was only for the period of 1989 to 2000 because the available GCM boundary data in the model was limited to this period.

The simulations for all 3 scenarios were for three periods; 1971 to 2000, 2020 and 2050. The period 1971 to 2000 simulation is referred to as the baseline climate, outputs of which are used to evaluate the models capacity of reproducing present climate (in other words, the control run). By comparing the outputs (i.e., temperature and rainfall) with the observed values for the 1971 to 2000 period, the models ability to realistically represent the regional climatological features within the country is verified. The differences between the outputs and the observed values are called the biases of the model. The 2020 and 2050 outputs are then mathematically corrected, based on the comparison of the models performance.

The main outputs of the simulations for the three SRES scenarios (high-range, mid-range and low-range) are the following:

  • projected changes in seasonal and annual mean temperature
  • projected changes in minimum and maximum temperatures
  • projected changes in seasonal rainfall and
  • projected frequency of extreme events

The seasonal variations are as follows:

  • the DJF (December, January, February or northeast monsoon locally known as amihan) season
  • the MAM (March, April, May or summer) season
  • the JJA (June, July, August or southwest monsoon season, or habagat) season and
  • the SON (September, October, November or transition from southwest to northeast monsoon) season

On the other hand, extreme events are defined as follows:

  • extreme temperature (assessed as number of days with maximum temperature greater than 35°C, following the threshold values used in other countries in the Asia Pacific region)
  • dry days (assessed as number of dry days or day with rainfall equal or less than 2.5mm/day, following the World Meteorological Organization standard definition of dry days used in a number of countries) and
  • extreme rainfall (assessed as number of days with daily rainfall greater than 300mm, which for wet tropical areas, like the Philippines, is considerably intense that could trigger disastrous events).

How were the uncertainties in the modeling simulations dealt with?

Modeling of our future climate always entails uncertainties. These are inherent in each step in the simulations/modeling done because of a number of reasons. Firstly, emissions scenarios are uncertain. Predicting emissions is largely dependent on how we can predict human behavior, such as changes in population, economic growth, technology, energy availability and national and international policies (which include predicting results of the international negotiations on reducing greenhouse gas emissions). Secondly, current understanding of the carbon cycle and of sources and sinks of non-carbon greenhouse gases are still incomplete. Thirdly, consideration of very complex feedback processes in the climate system in the climate models used can also contribute to the uncertainties in the outputs generated as these could not be adequately represented in the models.

But while it is difficult to predict global greenhouse gas emission rates far into the future, it is stressed that projections for up to 2050 show little variation between different emission scenarios, as these near-term changes in climate are strongly affected by greenhouse gases that have already been emitted and will stay in the atmosphere for the next 50 years. Hence, for projections for the near-term until 2065, outputs of the mid-range emission scenario are presented in detail in this Report.

Ideally, numerous climate models and a number of the emission scenarios provided in the SRES should be used in developing the climate change scenarios in order to account for the limitations in each of the models used, and the numerous ways global greenhouse gas emissions would go. The different model outputs should then be analyzed to calculate the median of the future climate projections in the selected time slices. By running more climate models for each emission scenarios, the higher is the statistical confidence in the resulting projections as these constitute the ensemble representing the median values of the model outputs.

The climate projections for the three emission scenarios were obtained using the PRECIS model only due to several constraints and limitations. These constraints and limitations are:

Access to climate models: at the start, PAGASA had not accessed climate models due to computing and technical capacity requirements needed to run them;

Time constraints: the use of currently available computers required substantial computing time to run the models (measured in weeks and months). This had been partly addressed under the capacity upgrading initiatives being implemented by the MDGF Joint Programme which include procurement of more powerful computers and acquiring new downscaling techniques. Improved equipment and new techniques have reduced the computing time requirements to run the models. However, additional time is still needed to run the models using newly acquired downscaling techniques; and

The PAGASA strives to improve confidence in the climate projections and is continuously exerting efforts to upgrade its technical capacities and capabilities. Models are run as soon as these are acquired with the end-goal of producing an ensemble of the projections. Updates on the projections, including comparisons with the current results, will be provided as soon as these are available.

What is the level of confidence in the climate projections?

The IPCC stresses that there is a large degree of uncertainty in predicting what the future world will be despite taking into account all reasonable future developments. Nevertheless, there is high confidence in the occurrence of global warming due to emissions of greenhouse gases caused by humans, as affirmed in the IPCC Fourth Assessment Report (AR4). Global climate simulations done to project climate scenarios until the end of the 21st century indicate that, although there are vast differences between the various scenarios, the values of temperature increase begin to diverge only after the middle of this century (shown in Fig.3). The long lifetimes of the greenhouse gases (in particular, that of carbon dioxide) already in the atmosphere is the reason for this behavior of this climate response to largely varying emission scenarios.

climate change in the philippines essay

Model outputs that represent the plausible local climate scenarios in this Report are indicative to the extent that they reflect the large-scale changes (in the regional climate model used) modified by the projected local conditions in the country.

It also should be stressed further that confidence in the climate change information depends on the variable being considered (e.g., temperature increase, rainfall change, extreme event indices, etc.). In all the model runs regardless of emission scenarios used, there is greater confidence in the projections of mean temperature than that of the others. On the other hand, projections of rainfall and extreme events entail consideration of convective processes which are inherently complex, and thus, limiting the degree of confidence in the outputs.

What are the possible applications of these model-generated climate scenarios?

Climate scenarios are commonly required in climate change impact, vulnerability and adaptation assessments to provide alternative views of future conditions considered likely to affect society, systems and sectors, including a quantification of climate risks, challenges and opportunities. climate scenario outputs could be used in any of the following:.

  • to illustrate projected climate change in a given administrative region/province
  • to provide data for impact/adaptation assessment studies
  • to communicate potential consequences of climate change (e.g., specifying a future changed climate to estimate potential shifts in say, vegetation, species threatened or at risk of extinction, etc.) and
  • for strategic planning (e.g., quantifying projected sea level rise and other climate changes for the design of coastal infrastructure/defenses such as sea walls, etc.)

Current Climate and Observed Trends

Current climate change in the philippines.

The world has increasingly been concerned with the changes in our climate due largely to adverse impacts being seen not just globally, but also in regional, national and even, local scales. In 1988, the United Nations established the IPCC to evaluate the risks of climate change and provide objective information to governments and various communities such as the academe, research organizations, private sector, etc. The IPCC has successively done and published its scientific assessment reports on climate change, the first of which was released in 1990. These reports constitute consensus documents produced by numerous lead authors, contributing authors and review experts representing Country Parties of the UNFCCC, including invited eminent scientists in the field from all over the globe.

In 2007, the IPCC made its strongest statement yet on climate change in its Fourth Assessment Report (AR4), when it concluded that the warming of the climate system is unequivocal, and that most of the warming during the last 50 years or so (e.g., since the mid-20th century) is due to the observed increase in greenhouse gas concentrations from human activities. It is also very likely that changes in the global climate system will continue into the future, and that these will be larger than those seen in our recent past (IPCC, 2007a).

Fig.4 shows the 0.74 C increase in global mean temperature during the last 150 years compared with the 1961-1990 global average. It is the steep increase in temperature since the mid-20th century that is causing worldwide concern, particularly in terms of increasing vulnerability of poor developing countries, like the Philippines, to adverse impacts of even incremental changes in temperatures.

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The IPCC AR4 further states that the substantial body of evidence that support this most recent warming includes rising surface temperature, sea level rise and decrease in snow cover in the Northern Hemisphere (shown in Fig.5).

Additionally, there have been changes in extreme events globally and these include;

  • widespread changes in extreme temperatures observed;
  • cold days, cold nights and frost becoming less frequent;
  • hot days, hot nights and heat waves becoming more frequent; and
  • observational evidence for an increase of intense tropical cyclone activity in the North Atlantic since about 1970, correlated with increases of tropical sea surface temperatures (SSTs).

However, there are differences between and within regions. For instance, in the Southeast Asia region which includes Indonesia, Malaysia, the Philippines, Thailand, and Vietnam, among others, temperature increases have been observed; although magnitude varies from one country to another. Changes in rainfall patterns, characteristically defined by changes in monsoon performance, have also been noted. Analysis of trends of extreme daily events (temperatures and rainfall) in the Asia Pacific region (including Australia and New Zealand, and parts of China and Japan) also indicate spatial coherence in the increase of hot days, warm nights and heat waves, and the decrease of cold days, cold nights and frost; although, there is no definite direction of rainfall change across the entire region (Manton et. al., 2001).

Current Climate Trends in the Philippines

The Philippines, like most parts of the globe, has also exhibited increasing temperatures as shown in Fig.6 below. The graph of observed mean temperature anomalies (or departures from the 1971-2000 normal values) during the period 1951 to 2010 indicate an increase of 0.648 C or an average of 0.0108 C per year-increase.

climate change in the philippines essay

The increase in maximum (or daytime) temperatures and minimum (or night time) temperatures are shown in Fig.7 and Fig.8. During the last 60 years, maximum and minimum temperatures are seen to have increased by 0.36 ºC and 1.0°C, respectively.

climate change in the philippines essay

Analysis of trends of tropical cyclone occurrence or passage within the so-called Philippine Area of Responsibility (PAR) show that an average of 20 tropical cyclones form and/or cross the PAR per year. The trend shows a high variability over the decades but there is no indication of increase in the frequency. However, there is a very slight increase in the number of tropical cyclones with maximum sustained winds of greater than 150kph and above (typhoon category) being exhibited during El NiÑo event (See Fig.10).

climate change in the philippines essay

Moreover, the analysis on tropical cyclone passage over the three main islands (Luzon, Visayas and Mindanao), the 30-year running means show that there has been a slight increase in the Visayas during the 1971 to 2000 as compared with the 1951 to 1980 and 1960-1990 periods (See Fig.11).

climate change in the philippines essay

To detect trends in extreme daily events, indices had been developed and used. Analysis of extreme daily maximum and minimum temperatures (hot-days index and cold-nights index, respectively) show there are statistically significant increasing number of hot days but decreasing number of cool nights (as shown in Fig.12 and Fig.13). 

climate change in the philippines essay

However, the trends of increases or decreases in extreme daily rainfall are not statistically significant; although, there have been changes in extreme rain events in certain areas in the Philippines. For instance, intensity of extreme daily rainfall is already being experienced in most parts of the country, but not statistically significant (see in Fig.14). Likewise, the frequency has exhibited an increasing trend, also, not statistically significant (as shown in Fig.15).

climate change in the philippines essay

The rates of increases or decreases in the trends are point values (i.e., specific values in the synoptic weather stations only) and are available at PAGASA, if needed.

Climate Projections

Projections on seasonal temperature increase and rainfall change, and total frequency of extreme events nationally and in the provinces using the mid-range scenario outputs are presented in this chapter. A comparison of these values with the high- and low- range scenarios in 2020 and 2050 is provided in the technical annexes.

It is to be noted that all the projected changes are relative to the baseline (1971-2000) climate. For example, a projected 1.0 C-increase in 2020 in a province means that 1.0 C is added to the baseline mean temperature value of the province as indicated in the table to arrive at the value of projected mean temperature. Therefore, if the baseline mean temperature is 27.8 C, then the projected mean temperature in the future is (27.8 C + 1.0 C) or 28.8 C.

In a similar manner, for say, a +25%-rainfall change in a province, it means that 25% of the seasonal mean rainfall value in the said province (from table of baseline climate) is added to the mean value. Thus, if the baseline seasonal rainfall is 900mm, then projected rainfall in the future is 900mm + 225mm or 1125mm.

This means that we are already experiencing some of the climate change shown in the findings under the mid-range scenario, as we are now into the second decade of the century. Classification of climate used the Corona's four climate types (Types I to IV), based on monthly rainfall received during the year. A province is considered to have Type I climate if there is a distinct dry and a wet season; wet from June to November and dry, the rest of the year. Type II climate is when there is no dry period at all throughout the year, with a pronounced wet season from November to February. On the other hand, Type III climate is when there is a short dry season, usually from February to April, and Type IV climate is when the rainfall is almost evenly distributed during the whole year. The climate classification in the Philippines is shown in Fig.16.

climate change in the philippines essay

Seasonal Temperature Change

All areas of the Philippines will get warmer, more so in the relatively warmer summer months. Mean temperatures in all areas in the Philippines are expected to rise by 0.9 C to 1.1 C in 2020 and by 1.8 C to 2.2 C in 2050. Likewise, all seasonal mean temperatures will also have increases in these time slices; and these increases during the four seasons are quite consistent in all parts of the country. Largest temperature increase is projected during the summer (MAM) season.

climate change in the philippines essay

Seasonal Rainfall Change

Generally, there is reduction in rainfall in most parts of the country during the summer (MAM) season. However, rainfall increase is likely during the southwest monsoon (JJA) season until the transition (SON) season in most areas of Luzon and Visayas, and also, during the northeast monsoon (DJF) season, particularly, in provinces/areas characterized as Type II climate in 2020 and 2050. There is however, generally decreasing trend in rainfall in Mindanao, especially by 2050.

There are varied trends in the magnitude and direction of the rainfall changes, both in 2020 and 2050. What the projections clearly indicate are the likely increase in the performance of the southwest and the northeast monsoons in the provinces exposed to these climate controls when they prevail over the country. Moreover, the usually wet seasons become wetter with the usually dry seasons becoming also drier; and these could lead to more occurrences of floods and dry spells/droughts, respectively.

climate change in the philippines essay

Extreme Temperature Events

Hot temperatures will continue to become more frequent in the future. Fig.19 shows that the number of days with maximum temperature exceeding 35 C (following value used by other countries in the Asia Pacific region in extreme events analysis) is increasing in 2020 and 2050.

climate change in the philippines essay

Extreme Rainfall Events

Heavy daily rainfall will continue to become more frequent, extreme rainfall is projected to increase in Luzon and Visayas only, but number of dry days is expected to increase in all parts of the country in 2020 and 2050. Figures 20 and 21 show the projected increase in number of dry days (with dry day defined as that with rainfall less than 2.5mm) and the increase in number of days with extreme rainfall (defined as daily rainfall exceeding 300 mm) compared with the observed (baseline) values, respectively.

climate change in the philippines essay

Climate Projections for Provinces

Impacts of climate change.

Climate change is one of the most fundamental challenges ever to confront humanity. Its adverse impacts are already being seen and may intensify exponentially over time if nothing is done to reduce further emissions of greenhouse gases. Decisively dealing NOW with climate change is key to ensuring sustainable development, poverty eradication and safeguarding economic growth. Scientific assessments indicate that the cost of inaction now will be more costly in the future. Thus, economic development needs to be shifted to a low-carbon emission path.

In 1992, the United Nations Framework Convention on Climate Change (UNFCCC) was adopted as the basis for a global response to the problem. The Philippines signed the UNFCCC on 12 June 1992 and ratified the international treaty on 2 August 1994. Presently, the Convention enjoys near-universal membership, with 194 Country Parties.

Recognizing that the climate system is a shared resource which is greatly affected by anthropogenic emissions of greenhouse gases, the UNFCCC has set out an overall framework for intergovernmental efforts to consider what can be done to reduce global warming and to cope with whatever temperature increases are inevitable. Its ultimate objective is to stabilize greenhouse gas concentrations in the atmosphere at a level that will prevent dangerous human interference with the climate system.

Countries are actively discussing and negotiating ways to deal with the climate change problem within the UNFCCC using two central approaches. The first task is to address the root cause by reducing greenhouse gas emissions from human activity. The means to achieve this are very contentious, as it will require radical changes in the way many societies are organized, especially in respect to fossil fuel use, industry operations, land use, and development. Within the climate change arena, the reduction of greenhouse gas emissions is called mitigation.

The second task in responding to climate change is to manage its impacts. Future impacts on the environment and society are now inevitable, owing to the amount of greenhouse gases already in the atmosphere from past decades of industrial and other human activities, and to the added amounts from continued emissions over the next few decades until such time as mitigation policies and actions become effective. We are therefore committed to changes in the climate. Taking steps to cope with the changed climate conditions both in terms of reducing adverse impacts and taking advantage of potential benefits is called adaptation.

What if the emissions are less or greater?

Responses of the local climate to the mid-range compared to the high- and low-range scenarios are as shown in Fig. 22 below. Although there are vast differences in the projections, the so-called temperature anomalies or difference in surface temperature increase begin to diverge only in the middle of the 21st century. As has already been stated, the climate in the next 30 to 40 years is greatly influenced by past greenhouse gas emissions. The long lifetimes of the greenhouse gases already in the atmosphere, with the exception of methane (with a lifetime of only 13 years), will mean that it will take at least 30 to 40 years for the atmosphere to stabilize even if mitigation measures are put in place, not withstanding that in the near future, there could be some off-setting between sulfate aerosols (cooling effect) and the greenhouse gas concentrations (warming effect).

climate change in the philippines essay

Likely impacts of Climate Change

A warmer world is certain to impact on systems and sectors; although, magnitude of impacts will depend on factors such as sensitivity, exposure and adaptive capacity to climate risks. In most cases, likely impacts will be adverse. However, there could be instances when likely impacts present opportunities for potential benefits as in the case of the so-called carbon fertilization effect in which increased carbon dioxide could lead to increased yield provided temperatures do not exceed threshold values for a given crop/cultivar.

Water Resources

In areas/regions where rainfall is projected to decrease, there will be water stress (both in quantity and quality), which in turn, will most likely cascade into more adverse impacts, particularly on forestry, agriculture and livelihood, health, and human settlement. Large decreases in rainfall and longer drier periods will affect the amount of water in watersheds and dams which provide irrigation services to farmers, especially those in rain fed areas, thereby, limiting agricultural production. Likewise, energy production from dams could also be rendered insufficient in those areas where rainfall is projected to decrease, and thus, could largely affect the energy sufficiency program of the country. Design of infrastructure, particularly of dams, will need to be re-visited to ensure that these will not be severely affected by the projected longer drier periods.

climate change in the philippines essay

In areas where rainfall could be intense during wet periods, flooding events would follow and may pose danger to human settlements and infrastructure, in terms of landslides and mudslides, most especially, in geologically weak areas. Additionally, these flooding events could impact severely on public infrastructure, such as roads and bridges, including classrooms, evacuation centers, and hospitals.

Adaptive capacity is enhanced when impact and vulnerability assessments are used as the basis of strategic and long-term planning for adaptation. Assessments would indicate areas where critical water shortages can be expected leading to possible reduction of water available for domestic consumption, less irrigation service delivery, and possibly, decreased energy generation in dams. Note that the adverse impacts would cascade, so that long-term pro-active planning for these possible impacts is imperative in order to be able to respond effectively, and avoid maladaptations. A number of adaptation strategies should be considered. Among the wide array of cost effective options are rational water management, planning to avoid mismatch between water supply and demand through policies, upgrading/rehabilitation of dams where these are cost-effective, changes in cropping patterns in agricultural areas, establishing rain water collection facilities, where possible, and early warning systems.

Changes in rainfall regimes and patterns resulting to increase/decrease in water use and temperature increases could lead to a change in the forests ecosystem, particularly in areas where the rains are severely limited, and can no longer provide favorable conditions for certain highly sensitive species. Some of our forests could face die-backs. Additionally, drier periods and warmer temperatures, especially during the warm phase of El Nino events, could cause forest fires. A very likely threat to communities that largely depend on the ecological services provided by forests is that they may face the need to alter their traditions and livelihoods. This change in practices and behavior can lead to further degradation of the environment as they resort to more extensive agricultural production in already degraded areas.

climate change in the philippines essay

Adverse impacts on forestry areas and resources could be expected to multiply in a future warmer world. The value of impact and vulnerability assessments could not be underscored. These assessments would help decision makers and stakeholders identify the best option to address the different impacts on forest areas, watersheds and agroforestry. Indigenous communities have to plan for climate-resilient alternative livelihoods. Thus, it is highly important to plan for rational forest management, particularly, in protected areas and in ancestral domains. One of the more important issues to consider is how to safeguard livelihoods in affected communities so as not to further exacerbate land degradation. Early warning systems in this sector will play a very important role in forest protection through avoidance and control/containment of forest fires.

Agriculture

Agriculture in the country could be severely affected by temperature changes coupled with changes in rain regimes and patterns. Crops have been shown to suffer decreases in yields whenever temperatures have exceeded threshold values and possibly result to spikelet sterility, as in the case of rice. The reduction in crop yield would remain unmitigated or even aggravated if management technologies are not put in place. Additionally, in areas where rain patterns change or when extreme events such as floods or droughts happen more often, grain and other agricultural produce could suffer shortfalls in the absence of effective and timely interventions. Tropical cyclones, particularly if there will be an increase in numbers and/or strength will continue to exert pressure on agricultural production.

Moreover, temperature increases coupled with rainfall changes could affect the incidence/outbreaks of pests and diseases, both in plants and animals. The pathways through which diseases and pests could be triggered and rendered most favorable to spread are still largely unknown. It is therefore important that research focus on these issues.

climate change in the philippines essay

In the fisheries sub-sector, migration of fish to cooler and deeper waters would force the fisher folks to travel further from the coasts in order to increase their catch. Seaweed production, already being practiced as an adaptation to climate change in a number of poor and depressed coastal communities could also be impacted adversely.

Decreased yields and inadequate job opportunities in the agricultural sector could lead to migration and shifts in population, resulting to more pressure in already depressed urban areas, particularly in mega cities. Food security will largely be affected, especially if timely, effective and efficient interventions are not put in place. Insufficient food supply could further lead to more malnutrition, higher poverty levels, and possibly, heightened social unrest and conflict in certain areas in the country, and even among the indigenous tribes.

A careful assessment of primary and secondary impacts in this sector, particularly, in production systems and livelihoods will go a long way in avoiding food security and livelihood issues. Proactive planning (short- and long-term adaptation measures) will help in attaining poverty eradication, sufficient nutrition and secure livelihoods goals. There is a wide cross-section of adaptation strategies that could be put in place, such as horizontal and vertical diversification of crops, farmer field schools which incorporate use of weather/climate information in agricultural operations, including policy environment for subsidies and climate-friendly agricultural technologies, weather-based insurance, and others. To date, there has not been much R&D that has been done on inland and marine fisheries technologies, a research agenda on resilient marine sector could form part of long-term planning for this subsector.

Coastal Resources

The countrys coastal resources are highly vulnerable due to its extensive coastlines. Sea level rise is highly likely in a changing climate, and low-lying islands will face permanent inundation in the future. The combined effects of continued temperature increases, changes in rainfall and accelerated sea level rise, and tropical cyclone occurrences including the associated storm surges would expose coastal communities to higher levels of threat to life and property. The livelihood of these communities would also be threatened in terms of further stress to their fishing opportunities, loss of productive agricultural lands and saltwater intrusion, among others.

Impact and vulnerability assessment as well as adaptation planning for these coastal areas are of high priority. Adaptation measures range from physical structures such as sea walls where they still are cost-effective, to development/revision of land use plans using risk maps as the basis, to early warning systems for severe weather, including advisories on storm surge probabilities, as well as planning for and developing resilient livelihoods where traditional fishing/ agriculture are no longer viable.

climate change in the philippines essay

Human health is one of the most vital sectors which will be severely affected by climate change. Incremental increases in temperatures and rain regimes could trigger a number of adverse impacts; in particular, the outbreak and spread of water-based and vector-borne diseases leading to higher morbidity and mortality; increased incidence of pulmonary illnesses among young children and cardiovascular diseases among the elderly. In addition, there could also be increased health risk from poor air quality especially in urbanized areas.

Surveillance systems and infrastructure for monitoring and prevention of epidemics could also be under severe stress when there is a confluence of circumstances. Hospitals and clinics, and evacuation centers and resettlement areas could also be severely affected under increased frequency and intensity of severe weather events.

climate change in the philippines essay

Moreover, malnutrition is expected to become more severe with more frequent occurrences of extreme events that disrupt food supply and provision of health services. The services of the Department of Health will be severely tested unless early and periodic assessments of plausible impacts of climate change are undertaken.

Scientific assessments have indicated that the Earth is now committed to continued and faster warming unless drastic global mitigation action is put in place the soonest. The likely impacts of climate change are numerous and most could seriously hinder the realization of targets set under the Millennium Development Goals; and thus, sustainable development. Under the UNFCCC, Country Parties have common but differentiated responsibilities. All Country Parties share the common responsibility of protecting the climate system but must shoulder different responsibilities. This means that the developed countries including those whose economies are in transition (or the so-called Annex 1 Parties) have an obligation to reduce their greenhouse gas emissions based on their emissions at 1990 levels and provide assistance to developing countries (or the so-called non-Annex 1 Parties) to adapt to impacts of climate change.

climate change in the philippines essay

In addition, the commitment to mitigate or reduce anthropogenic greenhouse gas emissions by countries which share the responsibility of having historically caused this global problem, as agreed upon in the Kyoto Protocol, is dictated by the imperative to avoid what climate scientists refer to as the climate change tipping point. Tipping point is defined as the maximum temperature increase that could happen within the century, which could lead to sudden and dramatic changes to some of the major geophysical elements of the Earth. The effects of these changes could be varied from a dramatic rise in sea levels that could flood coastal regions to widespread crop failures. But, it still is possible to avoid them with cuts in anthropogenic greenhouse gases, both in the developed and developing countries, in particular, those which are now fast approaching the emission levels seen in rich countries.

In the Philippines, there are now a number of assisted climate change adaptation programmes and projects that are being implemented. Among these are the Millennium Development Goals Fund 1656: Strengthening the Philippines Institutional Capacity to Adapt to Climate Change funded by the Government of Spain, the Philippine Climate Change Adaptation Project (which aims to develop the resiliency and test adaptation strategies that will develop the resiliency of farms and natural resource management to the effects of climate change) funded by the Global Environmental Facility(GEF) through the World Bank, the Adaptation to Climate Change and Conservation of Biodiversity Project and the National Framework Strategy on Climate Change (envisioned to develop the adaptation capacity of communities), both funded by the GTZ, Germany.

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The Philippines: Leading the Way In the Climate Fight

The Philippines is one of the world's most vulnerable countries to climate disasters. With more than 7,100 islands and an estimated 36,298 kilometers of coastline, more than 60 percent of the Filipino population resides within the coastal zone and are acutely impacted by climate change . Dangers include food and fresh water scarcity, damage to infrastructure and devastating sea-level rise. However, with an innate understanding of the acute impacts of climate change, the Philippines is one of the world's strongest voices leading the global movement, combatting the problem and ultimately setting an example in adapting to climate change. The nation is acting with urency and commitment — passing legislation, promoting the use of renewable energy and focusing on country-wide conservation.

That is why former US Vice President Al Gore and The Climate Reality Project hosted the 31st Climate Reality Leadership Corps Training in Manila. The Climate Reality Leadership Corps is a global network of activists committed to taking on the climate crisis and working to solve the greatest challenge of our time. The decade-long program has worked with thousands of individuals, providing training in climate science, communications, and organizing to tell the story of climate change and inspire leaders to be agents of change in their local communities.

CRinPH

As the president and CEO of The Climate Reality Project, I am thrilled to contribute to the training of more than 700 new Climate Reality Leaders . These individuals from all over the world are leaders in their own communities, local governments, and businesses, who each care deeply about combatting climate change. At the training, they had the opportunity to learn from some of the best and brightest in their respective fields including Vice President Gore, Senator Loren Legarda, and Mayor of Tacloban Alfred Romualdez as well as world-class scientists, policy-makers, faith leaders, communicators, and technical specialists. These leaders offered specific guidance to trainees on the science of climate change, the cost of climate impacts, and the Paris Agreement that established the framework to transition to a global clean energy economy. After the training, trainees emerged as energized and skilled communicators with the knowledge, tools, and drive to take action, educating diverse global communities on the costs of carbon pollution and what can be done to solve the climate crisis.

Unsurprisingly, a large percentage of the trainees who attended the event are Filipino. This means that after the training, the great work on climate solutions already happening in the Philippines will accelerate.

Post-COP 21 this could not be more important.

The agreement reached in Paris was a monumental step in the effort to combat climate change with 195 nations agreeing upon an international plan to reduce greenhouse gas emissions worldwide. However, now we have to turn words into action . Success is 100 percent dependent on its provisions being strengthened and implemented over time. Here in the Philippines, that means transitioning the energy economy from coal to renewable energy resources and working to adapt to the realities of climate change .

The Philippines has long relied on dirty coal for energy. In fact, a 300-megawatt coal-fired power plan came online only a few weeks after the Philippines signed the Paris agreement —  and this is the first of dozens of coal-fired power plants currently planned. Instead of supporting an energy resource we know is damaging, we must encourage banks and investors to embrace the revolution in renewable energy and encourage the growth and development of the clean energy economy here in the Philippines. The islands have with abundant renewable energy resources such as sun, wind, and ocean tides  —  now we need to prioritize investing in the infrastructure that turns these existing power sources into reality.

climate change in the philippines essay

Furthermore, a significant part of the agreement signed by the Philippines in Paris requires conserving, enhancing, and restoring forests country-wide. Over half of the country's commitment to reducing greenhouse gasses is based on plans to avoid deforestation and promote reforestation. Strong support for programs such as the Department of Environment and Natural Resources efforts to restore the country's mangroves, including those running from eastern Samar to Southern Leyte, can make a significant difference in both the reduction of greenhouse gases and mitigating  the potential risk and destruction from future storms.

The Philippines is one of the best-positioned countries to make a difference in the climate fight. My hope for the Manila training is that the trainees leave inspired to lead change in their own communities, including supporting and advocating for the crucial policies and changes needed as laid out by the Paris Agreement. If so, I am confident that the Philippines can play a key role in leading the world in halting the progressive destruction of climate change and ensure a sustainable future for us all.

Click here to learn more about how you can make a difference in fighting climate change by becoming a Climate Reality Leader.

Stronger Climate Action Will Support Sustainable Recovery and Accelerate Poverty Reduction in the Philippines

MANILA, November 09, 2022 – Climate change is exacting a heavy toll on Filipinos’ lives, properties, and livelihoods, and left unaddressed, could hamper the country’s ambition of becoming an upper middle-income country by 2040. However, the Philippines has many of the tools and instruments required to reduce damages substantially, according to the World Bank Group’s Country Climate and Development Report (CCDR) for the Philippines, released today.

With 50 percent of its 111 million population living in urban areas, and many cities in coastal areas, the Philippines is vulnerable to sea level rise. Changes due to the variability and intensity of rainfall in the country and increased temperatures will affect food security and the safety of the population.

Multiple indices rank the Philippines as one of the countries most affected by extreme climate events. The country has experienced highly destructive typhoons almost annually for the past 10 years. Annual losses from typhoons have been estimated at 1.2 percent of GDP.

Climate action in the Philippines must address both extreme and slow-onset events. Adaptation and mitigation actions, some of which are already underway in the country, would reduce vulnerability and future losses if fully implemented.

“Climate impacts threaten to significantly lower the country’s GDP and the well-being of Filipinos by 2040. However, policy actions and investments – principally to protect valuable infrastructure from typhoons and to make agriculture more resilient through climate-smart measures -- could reduce these negative climate impacts by two-thirds,” said World Bank Vice President for East Asia and Pacific, Manuela V. Ferro.

The private sector has a crucial role to play in accelerating the adoption of green technologies and ramping up climate finance by working with local financial institutions and regulators.

“ The investments needed to undertake these actions are substantial, but not out of reach, ” said IFC Acting Vice President for Asia and the Pacific, John Gandolfo . “ The business leaders and bankers who embrace climate as a business opportunity and offer these low-carbon technologies, goods and services will be the front runners of our future. ”

The report also undertakes an in-depth analysis of challenges and opportunities for climate-related actions in agriculture, water, energy, and transport. Among the recommendations are:

  • Avoiding new construction in flood-prone areas.
  • Improving water storage to reduce the risk of damaging floods and droughts. This will also increase water availability.
  • Extending irrigation in rainfed areas and promoting climate-smart agriculture practices such as Alternate Wetting and Drying (AWD).
  • Making social protection programs adaptive and scalable to respond to climate shocks.
  • Removing obstacles that private actors face in scaling investments in renewable energy.
  •  Ensuring new buildings are energy efficient and climate resilient.

Many climate actions will make the Philippines more resilient while also contributing to mitigating climate change.

“The Philippines would benefit from an energy transition towards more renewable energy.  Accelerated decarbonization would reduce electricity costs by about 20 percent below current levels which is good for the country’s competitiveness and would also dramatically reduce air pollution,” said Ferro.

Even with vigorous adaptation efforts, climate change will affect many people. Some climate actions may also have adverse effects on particular groups, such as workers displaced by the move away from high-emission activities. The report recommends that the existing social protection system in the country be strengthened and scaled up to provide support to affected sectors and groups.

World Bank Group Country Climate and Development Reports : The World Bank Group’s Country Climate and Development Reports (CCDRs) are new core diagnostic reports that integrate climate change and development considerations. They will help countries prioritize the most impactful actions to reduce greenhouse gas (GHG) emissions and boost adaptation while delivering on broader development goals. CCDRs build on data and rigorous research and identify main pathways to reduce GHG emissions and climate vulnerabilities, including the costs and challenges as well as benefits and opportunities from doing so. The reports suggest concrete, priority actions to support the low-carbon, resilient transition. As public documents, CCDRs aim to inform governments, citizens, the private sector, and development partners and enable engagements with the development and climate agenda. CCDRs will feed into other core Bank Group diagnostics, country engagements, and operations to help attract funding and direct financing for high-impact climate action.

  • 10 Things You Should Know About the World Bank Group’s First Batch of Country Climate and Development Reports
  • CCDR Video link

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climate change in the philippines essay

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Global Warming: Frontline Philippines

Luis V. Teodoro-125

Vantage Point

By Luis V. Teodoro

climate change in the philippines essay

A s this piece was being written, the number of dead, missing, and injured and the toll on agriculture and infrastructure were still rising in Oriental Mindoro, Camarines Norte, Samar, Romblon, and other provinces where almost every barangay had been devastated by days of torrential rain.

No super typhoon was responsible, and neither is it the rainy season. Low pressure areas (LPAs) and the clash between hot and cold air have nevertheless been bringing floods to parts of southern Luzon, the Visayas, and Mindanao.

No country can long endure the human and material costs of the unpredictability and intensifying violence of the weather disturbances that climate change is generating across the planet — and in the Philippines they have made even more problematic the poverty and destruction that bureaucratic bungling and corruption has inflicted on millions of Filipinos.

The increasing number of the super typhoons that have been smashing into the Philippines, the unseasonal weather, the tornados, cyclones, droughts, floods, and exceptionally cold winters in other countries are among the many indications that time is running out and the hour of what could be the end of the human race approaching.

Among the most vulnerable countries to global warming is the Philippines: it is a frontliner in the seemingly global rush to extinction. Not only is it in the path of typhoons; it also sits on the Pacific “ring of fire” that powers earthquakes and volcanic eruptions. The deaths, the injuries, and the billions in property losses and livelihood from these disasters contribute to the poverty and want that already define the lives of millions of Filipinos.

Even without global warming, crafting and implementing a national disaster mitigation program has always been among the responsibilities of any Philippine administration. To the need for such a program has been added the necessity of incorporating in it provisions that will give the Philippines a fighting chance in surviving the onslaught of the weather anomalies climate change is generating.

But the National Government has been remiss in the making of such a program. Local government units (LGUs) complain not only of the lack of funds for the dredging of creeks and rivers and for resident relocation, but also of the erratic and even non-existent reach of the food and other aid communities need during the current weather crisis.

No sense of urgency drove the previous administration to remedy the situation. Then President Rodrigo Duterte even had an excuse for his limited response to the victims of the super typhoons that ravaged the country, despite the billions of pesos budgeted for that purpose. Instead, he promised in 2021 to look for the funds needed to rehabilitate devastated communities. Hence it was mostly from foreign sources — the UN, Japan, the US and other countries — that those affected obtained some relief.

Unfortunately, neither has there been any sign that the Marcos II regime is seriously thinking of addressing the problems that climate change is aggravating, such as the decline in agricultural productivity and the losses in lives and property in the affected communities. Mr. Marcos is instead focused on regaling the rest of the world with his administration’s supposedly great economic achievements, the vast investment opportunities in the Philippines, and his sudden mastery of the complex realities of the country’s foreign relations.

Not all the 20 or so weather disturbances that enter the Philippine Area of Responsibility (PAR) annually make landfall. But even those that do not can still bring rains, flash floods, and landslides. Depending on the power of their winds, the rain they bring, and the number of places they ravage, those that do make landfall can be even more devastating. And as recent events are demonstrating, the rains from LPAs alone can bring unprecedented disasters to the most vulnerable communities.

These phenomena are likely to intensify, and they affect the entire country and the lives of everyone in it. Social and natural scientists have described the climate crisis as a threat worse than nuclear war to the future of organized human life. But little is being done in the Philippines by either local governments or their national counterpart to protect the most vulnerable communities from flooding and storm surges. Rather than pro-active risk-reduction, which global warming has made more urgent, government response to disasters has been mostly reactive and limited to moving those affected to improvised evacuation centers, distributing instant noodles and sardines, and urging them to relocate.

But neither the incentives, the means, nor the opportunity to relocate have been provided the residents of coastal communities, who are in perennial danger from storm surges, and those who live in places below average flood levels. Some do manage to evacuate when typhoons batter their communities. But they return to the same sites to repair or rebuild damaged or destroyed homes, and hence are in constant danger of losing their lives and property when the next typhoon comes.

Relocating can prevent the repetition of the same woes. But without access to livelihood sources, water supplies, and electric power in places they are unfamiliar with, few families are willing to risk it. And yet the millions still being spent on maintaining such frivolities as the Department of Environment and Natural Resources’ (DENR) Dolomite Folly could be better spent on, among others, providing endangered communities the incentives that could help reduce the annual human and material costs of weather disturbances.

Together with such a program, a national plan could include the construction of a system of levees along the country’s most vulnerable coastal areas. A network of permanent evacuation centers could also be constructed, and stricter engineering standards implemented in the construction of roads, bridges, buildings, homes, and other infrastructure.

Global warming has been attributed to, among others, the carbon dioxide and methane gasses that are released into the atmosphere by industries and the burning of fossil fuels of such countries as the United States, the European countries, Japan, and China. Reducing such emissions to stop the rise in global temperatures is therefore mostly those countries’ responsibility. They have to forge and implement working protocols to regulate their environmentally destructive industries and reduce the amount of pollutants from other sources discharged into the atmosphere. Among the existing conventions for that purpose are the Paris Climate Agreement and the Kyoto Protocol, but their implementation is hampered by the industrialized countries’ resistance to regulating the industries responsible.

Although not among those countries, the Philippines could make the use of alternative sources of power generation mandatory, together with the strict implementation of the Clean Air Act (RA 8749). It can also contribute to the global imperative of halting the threat by adopting a national plan devised by scientists, environmentalists, and other experts to ease the impact of disasters on the most endangered sectors of the population.

Ecologists and environmental activists have long been alerting the planet on the perils of climate change, but the governments of most countries, among them that of the Philippines, have not paid much attention to them. The “inconvenient truth,” as former US Vice-President Al Gore noted over two decades ago, is that not only national plans are needed but also a truly global program to address climate change.

Mr. Marcos could use his new-found skills in international relations to convince the rest of the world of that need. But rather than just globe-trotting, he could also craft and implement the policies that can combat the ravages of global warming here, in frontline Philippines.

Luis V. Teodoro is on Facebook and Twitter (@luisteodoro).

www.luisteodoro.com

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Climate Change Impacts on Philippine Communities: An Overview of the Current Literature and Policies

climate change in the philippines essay

Introduction

The Philippines is one of the countries most vulnerable to climate change in the world. An island nation which is heavily exposed to extreme weather events, the Philippines has little adaptive capacity. This article will begin by exploring the current and anticipated climatic changes as based on the most recent report released by the International Panel for Climate Change in 2014. After this, the economy of the Philippines is discussed; the main industries of which are agriculture, mining, and services (including tourism, business process outsourcing, and remittances from overseas Filipino workers). The primary industries of the Philippines, namely agriculture and mining, have varying yet significant detrimental impacts on the environment, these are explored, as are the risks of both these industries and macro scale anticipated climate change impacts to society. After this, current or proposed policies to improve the status quo of the mining and agriculture sectors are explored and critiqued. Following this, there is a discussion of the groups in the Philippine society who are most vulnerable to climate change and adverse industry impacts. A larger exploration of lower economic groups, particularly agriculture-based households is undertaken. The impacts on these marginalized groups are contextualized as forms of violence and reviewed in line with the themes of sustainable development and positive peace.

Overview of the Philippines

Geography and climate.

The Philippines is an archipelago with over 7500 islands comprising approximately 30 million hectares, nestled between the Philippines Sea, the South China Sea, and the Celebes Sea. The islands of the Philippines are grouped into three regions: Mindanao (10.2 million hectares), Visayas (5.7 million hectares), and Luzon (14.1 million hectares) where the capital, Manila, is located. The Philippines is a collection of half-submerged mountains, which were pushed up as a result of the subduction zone of the collision of the Eurasian and the Philippine plates. This subduction zone makes the Philippines prone to earthquakes and volcanic activity. The climate is tropical, with an average humidity of 80% and an annual rainfall of 80-450cm. 1 Two of the regions, Luzon and Visayas, are affected by typhoons each year, which account for half of their annual rainfall.

Demographics

Of the 102.8 million people who live in the Philippines, 44.2% live in urban centers, while the remaining 55.8% live in rural areas. 2 According to the International Monetary Fund (IMF), the current per capita GDP is 12,430 Philippine Pesos, an increase of 6.7% over the previous year. 3 Poverty has also dropped to 21.6% over the past year with unemployment dropping to a historic low of 4.7%. However, underemployment is still steady and significant at 18%. Underemployment reflects the number of workers who are working but would like to work more hours than they receive. This high value reflects the prevalence of informality, workplace corruption, and other job-related concerns. 4 Poverty and underemployment are directly related to undernourishment, at a rate of 13.8% of the population. 5 These are projected to worsen with the increased income inequality. 6

Review of Climate Change and Projected Impacts

According to the National Aeronautics and Space Administration (NASA) climate change is defined as the change in the usual weather found in a place; specifically, it refers to the levels of precipitation or expected temperature of a month or season. This is a long-term alteration in the expected climate which usually takes hundreds or even millions of years. 7 The basis for the review of climate change impacts is taken from the International Panel of Climate Change (IPCC) fifth assessment report (AR5) which was released in 2014. The IPCC was established in 1988 by the United Nations Environmental Programme (UNEP) and the World Meteorological Organization (WMO) to provide unbiased and clear scientific research on the current state of knowledge in climate change and its potential environmental and socio-economic impacts. 8

This review acknowledges climate change is a global phenomenon and one which affects all regions and sub-regions differently, however, it is outside the capacity of this paper to review the global impacts of climate change, the scope of this paper is limited to South-East Asia, most particularly to the Philippines. This section aims to discuss only the changes in climate resulting from global increases of atmospheric carbon. Climate change is anticipated to have many impacts on the status quo of the Philippines.

Temperature rise

As it stands, an increase of more than 3°C is expected throughout Southeast Asia. 9 This temperature increase will be reflected in ocean temperatures, particularly at the surface. 10 Not only will the temperature increase affect the oceans, but it will also affect terrestrial ecosystems in several ways. Temperature is quantitatively the most important driver of changes in fire frequency in terrestrial ecosystems. 11 It is not fully understood how this relationship works, however analysis of the past 21,000 years shows there is a positive relationship between temperature and fire frequency, more so than any other parameter. In addition to increased fire frequency risks, precipitation patterns will continue to be heavily impacted by the increased temperatures.

Precipitation

Overall, rainfall has only increased by 22mm per decade over Southeast Asia, which is not a significant increase; however the regularity of the rainfall has altered with 10mm of the measured increase being attributed to extreme rain days. This increase is predicted to continue over the coming decades. 12 The decreased regularity of precipitation has a two-fold consequence; firstly, longer and more intensive drought periods, and secondly, heavier rainfall once the droughts end. One part of the altered precipitation pattern is the increased level of precipitation occurring with tropical cyclones. Aside from the increased rainfall with each cyclone, there is less confidence in the knowledge surrounding the increase in frequency or intensity of these cyclones. Another weather pattern where precipitation will play a role is the monsoon season. Eighty-five percent of future projections show an increase in mean precipitation during monsoons, while more than 95% show an increase in heavy precipitation events. 13

Fresh Water

Although the parameters to measure fresh water quality and quantity are heavily influenced by human activities, there is evidence to believe that climate change impacts not only the quantity of freshwater but also the quality. Delpla et al 14 showed that warming and extreme events were likely to modify the physical-chemical parameters, micropollutants and biological parameters of the water. 15 The physico-chemical parameters include measurements such as temperature, pH, dissolved oxygen, and total dissolved solids. Micropollutants are bioactive, non-biodegradable substances such as radioactive or biologically harmful metals (including mercury, lead, and arsenic), pesticides, or pharmaceuticals, and biological parameters include the presence and volume of species such as algae and phytoplankton as well other microorganisms. Higher air temperatures increase evapotranspiration; when this occurs in tandem with increased frequency and intensity of droughts, then surface water quantity will be decreased. This can then increase the concentration of many of the physico-chemical parameters, micropollutants, and biological parameters listed above.

As previously mentioned, the ocean is anticipated to increase in temperature, particularly at the surface. 16 The current state of warming has been implicated in the northward expansion of tropical and subtropical macroalgae and toxic phytoplankton. 17 This northward shift of species is anticipated to alter the marine ecosystems and provide new challenges for the species which have historically been present in and around the Philippines. With current predictions, the increased temperature combined with ocean acidification is expected to result in significant declines in coral-dominated reefs and other calcified marine species, such as algae, molluscs, and larval echinoderms. 18 Current trends in sea level rise are expected to be exceeded by the future predictions. 19 This, in combination with cyclone intensification, will likely increase coastal flooding, erosion, and saltwater intrusion into surface and groundwaters. 20 Unless they are provided with enough fresh sediment or are allowed to move inland, beaches, mangroves, saltmarshes and seagrass beds will decline also, and these declines will exacerbate wave damage. 21 , 22 , 23 , 24

Philippine Industries: Agriculture

Agriculture – including forestry, fishing, and hunting – is one of the biggest sectors of the Philippine economy, accounting for 9.7% of the GDP 25 and employing 28% of the total workforce. The sizes of the agricultural ventures vary drastically, including a significant number of subsistence farmers as represented by the large proportion of the population who live rurally, and commercial ventures from multinational corporations. The large commercial agriculture ventures hold significant swathes of land and grow vast quantities of produce. In the Philippines the main crops are sugar, rice, and coconuts, each year producing hundreds of thousands of tons of each for export. 26 There is a drastic difference between the commercial ventures and the subsistence farmers in terms of yield, intensity of farming practice, and exports. It should be noted that fishing and farming are the two sectors with the highest incidences of poverty, 27 which I will discuss in more depth below.

Services are a highly profitable and diverse sector for the Philippines, and one which has expanded greatly over the past few years. Tourism is included in the services sector and provided 8.6% of the nation’s GDP in 2016, up 0.4% from the previous year. 28 Another major part of the services sector is the rapidly growing business process outsourcing, where call centers and other such infrastructure are exported to places like the Philippines to exploit their lower labor costs. In the Philippines, this employs over 1.3 million people. A last significant part of the services industry –which isn’t always accounted for but is nevertheless a crucial source of income for many families – are the remittances sent home from overseas Filipino workers (OFW). In the year 2016 there were 2.2 million OFW spread globally working in a large variety of roles. The remittances these workers returned to the Philippine economy added 146,029 million Philippine pesos, or roughly USD$2.78 billion in the year 2016. 29

There is great variety of industries in the Philippines, including vast manufacturing outputs. These range from one of the largest shipbuilding industries in the world, to a growing automotive and aerospace production. Construction is also a major employer as the country develops its economy and its population continues to grow, requiring more infrastructure. One of the main and more controversial industries of the Philippines is the mining and extraction industry. The Philippines has significant reserves of gold, nickel, copper, chromite, silver, coal, sulphur, and gypsum. While there has been significant debate over the legality of overseas mine ownership and mining procedures (as will be discussed later) the industry has continued to grow over the past year. The main contributors to the 8.8% expansion were stone quarrying, clay, and sandpits which grew by 17.7%, gold which grew by 16.5%, and crude oil, natural gas and condensate which grew by 7.4%. 30

Impacts of Industries on Environment

The impacts of many industries on the local environment make detecting and disentangling the impacts of climate change from the surrounding pressures very challenging, which is also reflected in the literature. 31

Many industries require access to fresh water, as a result, overexploitation of groundwater systems can result in land subsidence. When this is combined with the climate change driven impacts of coastal inundation and sea level rise, there is increased risks of worsened water quality. 32 Mining, in particular, poses a significant risk of water contamination. Mine tailings – the excess earth and chemicals used to obtain the target metal – are often permanently stored in large lakes or used to create structures such as dam walls and piers. However, if the tailings are not treated or sealed correctly, poisonous contaminants can leachate out and pollute the water surrounding them. As mining is such a prevalent industry in the Philippines, and with choices being made to economize the handling of these tailings (often at the expense of long-lasting safety), there have been examples of significant water contamination, including from the Palawan Quicksilver mine, 33 along the Naboc River area near Mindanao, 34 and in the water supplies to the villages of Sta. Lourdes and Tagburos. 35

Deforestation

Between 1990 and 2005, the Philippines lost a third of its primary forest cover. 36 This was due to a number of factors, one of which is the conversion of forest lands to promote growth and development. This is combined with high levels of poverty and landlessness in rural and urban populations, causing poorer families to move into less farmable uplands. This poverty is compounded by uncertain land rights, resulting in lack of long term investment in land and over-exploitation of its resources for short-term economic benefits. There is also a lack of policy and improper pricing of the land which results in poorly managed forestry practises, resulting in high capital intensity, low employment generation, and low investments in forest regeneration and protection.

There is an alarming feedback from forest cover to rainfall. Of course, without rain there is very little sustainable agriculture, including forestry. However, when forest cover is removed, it has been anticipated that rainfall patterns will also significantly change. 37 Consider that 25-56% of all rainfall in highly forested regions can be recycled in the ecosystem as tropical trees extract water from the soil and, through evapotranspiration, release it into the atmosphere, thus inducing rainfall. With the high rates of deforestation in the Philippines, we can assume that historic rainfall patterns will be significantly different in the future, not only through the broader forces of climate change, but also on a micro scale as a result of deforestation.

Land degradation

According to a report prepared by the Food and Agriculture Organization in 1999, approximately 75% of land in the Philippines is severely or very severely degraded. Due to the age of the report, significant changes have occurred since its release; but in many cases, soil degradation has worsened. Land degradation is associated with accelerated soil erosion, siltation of irrigation systems, flooding, and water pollution. Land effects are intricately linked with the previously discussed issues of fresh water and deforestation. Land degradation can occur through two main pathways: firstly is erosion, the removal of soil. Erosion occurs naturally through wind and water moving particles of soil, but is accelerated through human activity, particularly deforestation. Steeper lands are more erosion prone than lowlands, hence, as deforestation of the uplands became so prevalent in the last few decades, steep slope erosion is a serious issue. 38 Official estimates show a slow rise of erosion from 340 million t/year in the late 1980’s to nearly 350 million t/year in the early 2000’s.

The second type of land degradation is in the changes to the chemical, biological and physical parameters of the soil, such as nutrient loss, salinization, acidification, and compaction. Nutrients leave the soil either through adherence to water and traveling over the surface or gravitating down through the soil to water bodies below. This consequently makes nutrient loss a relative issue; nutrients tend to accumulate elsewhere, causing downstream damage, either through blocking water pathways with sediment build up, or adding too many nutrients that promote algae growth and polluting water bodies. Through continuous cropping, extensive submergence, and high chemical usage, the production of one crop in particular – rice – has led to declined organic matter content, nutrient supply capacity, nutrient imbalance, water logging, soil salinity and alkalinity and forming of hardpans at shallow depths. 39 These impacts combined have led to a slowdown of overall yield growth..

Risks to Society

The impacts of climate change and industry will likely manifest themselves through impacts on water resources, agriculture, coastal areas, resource dependent livelihoods, and urban settlements and infrastructure. These will have implications for human health and well-being. This section will explore food security, disease prevalence, and income and settlements. There are many links and feedback loops between each of these concepts, thus making a clear discussion a challenge. A lack of food security will lead to increased vulnerability to disease, as malnutrition reduces the immune system’s ability to resist infection and viruses. Poor housing can also increase vulnerability to disease, through exposure to cold, damp, or unsanitary living conditions. All three of these interacting factors are affected by income, as without sufficient funds, households cannot afford adequate nutrition, medicine, or quality housing.

Food Security

As temperature rises, the growth period of many crops – including rice – is shortened. It is already shown that current temperature in parts of Asia – including the Philippines – are reaching critical levels during the susceptible stages of the rice plant. 40 Extreme weather events have significant destructive capacity, which when combined with increased precipitation events lead to higher flood risks, yields could drastically fall. 41 Furthermore, with increased sea level rise, many coastal areas will lose agricultural lands due to submersion or increased salinization from a rising salt water table.

Added to the risks of climate change are those from industry. Unsustainable agricultural practices leading to land degradation have been previously discussed, but some industries also have negative impacts on the environment of other industries, one of which is mining. As previously mentioned, tailings from mines can leach out and pollute water sources. These water sources can be used for a number of purposes, including agriculture. The case of the Naboc River in Mindanao is one such example. Here, water from the river is being used to irrigate rice fields. This combined with high consumption levels of local fish (from the same polluted river) has led to high levels of mercury exposure in the population, resulting in 38% of the local inhabitants being classified as mercury intoxicated. 42 Further, tailings from the Palawan Mine, used to construct a jetty into Honda Bay, have leached out into the water, creating another food source pathway of mercury to humans which is particularly pertinent in the high-fish-consuming population. The last example is in the towns of Sta Lourdes and Tagburos, where a health crisis has been declared and residents exposed to mercury through similar pathways as those previously discussed are being evacuated and receiving medical treatment.. These are just three examples with definitive literature; there are many more similar situations of contamination from mine tailings which further threaten food security in the Philippines.

Epidemics are often reported after floods and storms, both of which are set to increase as a result of climate change and unsustainable land clearing and farming practise, as previously discussed. These epidemics can come as a result of decreased drinking water quality, amongst other reasons. According to the Philippine Statistics Authority the main source of drinking water in the Philippines is bottled water with 27.2%, and cooking water sourced from community water systems with 43.4%. 43 While it may be assumed that bottled water is safe and unaffected in quality by floods or storms, the population which does not have access to this security is at risk from reduced water quality. Further contributing causes of epidemics after floods are mosquito proliferation and exposure to rodent-borne pathogens. 44

There are also links between heat and human health, showing that high temperatures subsequently increase mortality, particularly in the elderly and people with cardiovascular and respiratory disorders. 45 In addition to heat, droughts also have health impacts. Increased heat and drought frequency, as previously discussed, are the primary causes of increased frequency of wildfires, which in turn increase incidences of smoke exposure. Drought can also impact agriculture, as mentioned above, threatening food security and having further renders people susceptible to disease. 46

As previously mentioned, floods and storms may increase mosquito proliferation and exposure to rodent-borne pathogens. We can anticipate that increased temperatures will also affect vector-borne pathogens. This could be through shorter vectors life-cycles and extrinsic incubation periods, resulting in larger vector population sizes. This would enhance the spread of disease between the vector species and humans. One such example is that of dengue fever, which has a time-lagged positive correlation with increased temperature and rainfall. 47 Among all the impacts anticipated with climate change, the broadest impact on human health is the traumatic psychological effect these changes will have. Many mental disorders as well as post-traumatic stress syndrome have been observed in disaster-prone areas. 48

Income and Settlements

The Philippines is a country of rapid development and urbanization. However, more than half of its inhabitants still live rurally and still suffer disproportionate rates of poverty. 49 It is expected that impacts of environmental degradation and climate change will impact those below the poverty line with more vigor than those above it. In the national economy, agriculture is anticipated to be a key driver of growth over the coming years. Southeast Asia is the third poorest region (in regard to human development indicators) after sub-Saharan Africa and Southern Asia. 50 Considering its current situation, with anticipated global increase in food prices for staples such as rice, the Philippines stands a chance to improve its economy if it can manage the negative climatic impacts anticipated for the agricultural industry. 51

Many settlements in the Philippines are in low elevation coastal areas which are particularly vulnerable to climate change hazards, such as sea level rises, storm surges, and typhoons. One group, in particular, is those living in peri-urban areas who face particular risks. These peri-urban areas are often of lower socioeconomic standing, which consequently increases inhabitants’ risks regarding food security, but also increased land title insecurity and price pressures. Secondly, peri-urban areas often serve as sinks for urban wastes, holding landfills and sewage treatment facilities which can pose local biophysical risks. Lastly, as they are outside of the inner-urban area, peri-urban areas are often not included in disaster risk management planning, even though they will most likely suffer just as much as inner-urban areas. 52

The risks of extreme weather events to industries are multi-faceted. Particularly regarding infrastructure, climate change poses many direct and indirect challenges to industrial production and enterprise. There is no doubt that climate change will deteriorate infrastructure, which can disrupt basic services such as water supply, sanitation, energy provision, and transportation systems, which can lead to mass migrations. 53 With increased frequency and intensity of cyclones and other extreme weather events, this can create an unsustainable cost for a developing economy. Over the past four years, climate-induced disasters have cost the Philippine economy 0.3% of its GDP. 54 This is anticipated to increase up to 2.2-5.7% of the GDP by the year 2100. 55 Furthermore, climate change can also exacerbate current socioeconomic and political disparities and add to the vulnerability of the Philippine people. 56

Current Policies on most Environmentally Damaging Industries

In 2016, the previous environmental secretary of the Philippines, Regina Lopez, spearheaded an environmental audit of the mines in the Philippines, finding “serious environmental violations” at 23 of the 41 operating mines. 57 This audit resulted in a “ban of mining” which prevented new mining ventures. 58 Mining contributes less than 1% of the countries GDP; 59 , 60 however, it also produces 8% of the world’s supply of nickel, and 97% of China’s supply, the decrease of which could result in serious international consequences. 61 Appeals have already been made to lift the ban and release Lopez’s audit for transparency. 62 , 63 , 64 This international pressure could damage the ability of the Philippine administration to make clear and logical policies which consider both the economic and employment benefits of mining for the people of the Philippines, but also consider the longevity of the environment and any other economically beneficial alternative land uses.

Recently, the Duterte administration signed the Canadian Towards Sustainable Mining (TSM) initiative. This program was developed to facilitate the extraction of minerals, metals and energy products in the most socially, economically, and environmentally responsible way. 65 There are three core pillars which uplift this program: accountability, transparency, and credibility. Accountability is achieved through regular assessments at the facility level where the mining takes place, providing local communities with accurate and honest knowledge as to the health of the mine. Members of the TSM provide progress reports, measuring 23 set indicators; this is done annually and is audited every three years. These results are publicly available, thus providing transparency. The last pillar, credibility, is fostered through ongoing consultation with a national Community of Interest Advisory Panel, which is a multi-stakeholder group comprising aboriginal groups, community leaders, environmental and social NGOs, and labor and financial organizations. There are also members of the Mining Association of Canada board to provide a mining industry perspective. 66 There are still issues to resolve – including the open pit ban – before any growth can be expected from the industry. 67 Duterte said that while he would not lift the ban on new ventures, he would give current firms time to adapt to less environmentally harmful practices as opposed to enforcing their immediate closure. 68

In early 2018, the new secretary for the environment, Roy Cimatu, visited one of the largest tourist destinations in the Philippines. During this visit he witnessed significant and widespread environmental violations, 69 predominantly amongst the locally owned and run hostels and housing for migrants who work in the more established and well-endowed global hotel-chains. 70 This is mainly due to the well-financed position of many global chains who can ensure their facilities connect to water treatment systems and meet the requirements of the law. It should be noted, however, that while enforcing strict environmental security is of utmost importance to ensure the self-sustainability of local populations, it should not be done with disregard. Not only does the hard-line approach hamstring productivity and potentially frighten future overseas investors, in regard to both the tourism example and the previous open-pit mining ban, it also has significant repercussions for employment. Households who have migrated for work, such as in Boracay, or who are solely dependent on one industry, will face significant losses to livelihood in the event of a hard-line indefinite closure.

Agriculture

The primary goal of the agriculture policy in the Philippines is to achieve self-sufficiency in rice production, in the hope that it will effectively combat food insecurity and poverty through a stable food supply at an affordable cost. 71 The interference of the government in the agriculture industry has ebbed and flowed over the past few decades. The level of intervention was particularly heavy in the 1970s and ‘80s before easing off to allow increased private sector control until the turn of the millennium. 72 In the early 2000s Philippine agriculture refocused on rice, and there was a subsequent increase in government subsidies. This was more pertinent after the 2008 global food crisis, which further strengthened the drive for self-sufficiency in rice. 73 There were many suggested pathways to achieving this self-sufficiency, three of which will be discussed in more depth.

Traditionally, subsidizing input costs has been the main instrument in achieving self-sufficiency in the Philippines. 74 This includes preferential tax policies exempting agricultural enterprises from import duties on agricultural equipment and machinery. Furthermore, the government subsidizes ongoing and recurring inputs such as seeds and fertilizers. More recently, these subsidies have been tailored to increase planting of hybrid rice strains, with varying success. Many of these seeds do not produce seeds of their own, so farmers are required to repurchase stock every year, unlike traditional inbred varieties. This combined with often a heightened fertilizer requirement, resulted in a low uptake of the new technology. 75

Since the turn of the millennium, there has been increased pressure to provide general services to the whole industry. These include investment into an extensive irrigation network, primarily to benefit rice farmers. A further priority intervention is the construction and maintenance of a road network, better connecting farms to markets. This increases agricultural productivity and reduces post-harvest losses. To further future agriculture productivity, the Philippine government invests substantially in research and development. This research should pass through local level government, with reinvestment by the government. 76

The most powerful agricultural policy instrument used by the Philippines government to move towards rice self-sufficiency is price supports. These measures are placed mainly on rice and sugar; they include a support price, release price, government procurement and import restrictions. Government procurement stabilizes consumer price levels through buffer stocks, ensuring adequate and continuous supply. 77 Import restrictions regulate foreign trade, particularly on the import of rice. While it is crucial for self-sufficient industry not to import more rice than they produce, this is proving to be detrimental in the case of the Philippines. Self-sufficiency requires gross yield to match or exceed the requirement of the population. As the Philippines has undergone sustained population growth, particularly in recent times, in combination with decreased land availability and land productivity, the result is a significant gap between what is produced and what is required. In tandem with high import tariffs on rice, prices go up, resulting in recent increases in malnutrition and poverty.

The budgetary transfers to subsidize agriculture from the government are five times higher than those of other regional countries. 78 This inefficiency is made clearer when comparing percentages of the total; employment in agriculture is almost three times the GDP produced by agriculture. This low labor productivity is one of the reasons explaining the low incomes of agriculture-dependent households. 79 Considering that more than 60% of poor Filipino households’ income is spent on food, 80 low labor productivity rates are not financially sustainable. This seems to have started a reduction of the laboring population in agriculture. This movement from agriculture to non-agricultural sectors has provided overall economic growth. The movement of labor from low productivity to high productivity has increased incomes for families through the diversification of income sources. Furthermore, it has also raised the wage rate of agricultural labor as the supply shrinks, and reduced pressures on land and water availability. 81 However, this is not spread in a uniform manner as will be discussed below.

Some of the government’s agricultural policy instruments bring hope to the struggling sector, such as subsidized input costs and improved general services. However, as I have discussed, there is still real and significant water contamination from the mining industry, which has the potential to continue and worsen. While the government has invested in irrigation systems to stabilize and increase crop yields, these funds would be better invested in ensuring that the water used for irrigation is not contaminated. There is still positivity in the criticism of the general services investments; any investment to improve road connectivity will decrease vulnerability. Having clear and easy access between towns and cities will not only reduce post-harvest losses of crops as mentioned above, it will also increase accessibility to rural communities in the event of increasingly frequent natural disasters. Having this increased accessibility will allow emergency services and humanitarian aid into townships further afield, which would previously have been cut off.

Reducing input costs can also have detrimental impacts to the longevity of the agricultural sector. Tapering these subsidies to only a few crops, such as rice and sugarcane, will restrict diversity and increase vulnerability. Similar to the concept of having all one’s eggs in one basket, having a lack of diversity in the agricultural sector reduces resiliency to crop specific diseases or market price fluctuations, particularly for rice, which is becoming dangerously vulnerable in to increased temperature and reduced precipitation during its growth period. Moreover, reducing input costs into agriculture can increase intensification. While this intensification is necessary in the name of self-sufficiency, it is detrimental long term, as it often reduces land productivity, stripping the soil of nutrients and its necessary micro biodiversity. One suggestion, put forward by the OECD director of trade and agriculture, is to move away from the concept of self-sufficiency to move towards increased productivity and profitability in a way which is environmentally sustainable. 82

Vulnerable Groups

The current and predicted state of the environment can be expected to have disproportionate repercussions for marginalized groups in society. In addition, research has shown an exacerbation in gender inequality. Chandra et al have explored the impacts of climate change and conflict on rural women in the wider Mindanao area 83 finding that climate change and conflict have been shown to disadvantage women to greater rates than men. According to Chandra women are more likely to farm smaller plots of land, work shorter hours, or limit their farming to cash crops. 84 Additionally, adult women frequently sacrifice their own food to ensure their children or the elderly in their care eat enough first – worsening food insecurity. Furthermore, should abandonment of the farm prove necessary – which is increasingly common – women tend to find work more easily in urban centers than men. 85 This can also lead to increased risk of sex trafficking. 86 , 87

A group that is similarly vulnerable to climate change and adverse industry impacts is indigenous peoples. The UN Economic and Social council released a report in 2003 exploring human rights and indigenous issues occurring in the Philippines. 88 This report detailed many issues concerning resource management and sustainable development, poverty, and militarization. One case which is referred to throughout the report is that of the Bugkalot indigenous people who have been fighting for their rights over the OceanaGold Corporation and Didipio mine. Although the Bugkalot elected anti-mining parliamentary members and local councils, the military systematically raided the townships of the Bugkalot, using tactics of torture, harassment, and grave coercion. 89 The indigenous people, joining forces with local peasants, still work towards closing the mine. A few years ago, the Didipio Earth Savers Multi-purpose association successfully rolled back some of the mining operations in Nueva Viscaya. 90 However, the OceanaGold mine is still operating and last year won the ASEAN award for best practices in mineral processing, citing community investment as a main bonus. 91 There should be serious concerns raised when a transnational corporation, such as Oceana Gold, has the political power to manipulate the military to act against the people. Looking forward, similar concerns should be raised with the open-pit mining ban regarding the ability of the Philippine administration to withstand heavy pressure from the appeals that have already begun. Not only did the indigenous group suffer land losses, they also suffered the political corruption of having their elected officials ignored and having the military turn against them. Though this is only one example, generally indigenous communities are more vulnerable to climate change. As will be discussed shortly, the more reliant a community is on natural resources, the more susceptible they are to the negative impacts on the degradation of those resources. As many indigenous communities live wholly within the capacities of their environment, they witness the changes firsthand and feel them more intensely.

The largest and most widespread vulnerable group are those lowest in economic status, including women and indigenous groups. Currently the most poverty-stricken group in the Philippines are the rural poor whose livelihoods depend almost entirely on subsistence agriculture, as previously discussed. The low economic capacity of this group makes them the most vulnerable group for a number of reasons. During extreme weather events, economically marginalized families are not able to escape, do not have food supplies saved up, nor are they able to afford medicine should an epidemic follow an extreme weather event. For the predominantly agriculture-reliant families from the poorest decile, the low-labor productivity of agriculture, and difficult economic policies enforced to achieve rice self-sufficiency are partially the cause of their plight. While the open-pit ban and any developments under the TSM initiative will hopefully stem the ongoing resource degradation, any mining venture has the risk of going wrong and causing disastrous and often irreversible impacts. Those communities who are most dependent on these natural resources are the most vulnerable to their change, also do not have the economic capacity to withstand or financially absorb any detrimental impacts. Further, these communities often do not have expendable income for medication, or treatment of the contamination, which prolongs and exacerbates their suffering. For example, leachate from tailings with mercury and other physical-chemical pollutants has already been linked to contamination and intoxication of local populations.

Many of the current or suggested policies for some of the most environmentally damaging industries of the Philippines have disproportionate consequences for marginalized groups of society. This disproportionality represents violence, under Galtung’s definitions. 92 Violence can be direct from one individual to another, such as from a soldier to an indigenous villager who is protesting the illegal mining in their homeland. Structural violence, as Galtung defines it, is the violence exerted by one group upon another, such as the contamination of water from poor mining practice which results in mercury intoxication in significant numbers in a village. This is violence committed by both the mining companies who failed to ensure their practices were safe, and the government, who failed to enforce safe practices on the company to protect their citizens. Galtung defines cultural violence as the parts of society which allow the previous two violences – direct and structural – to continue. This could be due to pressure from transnational mining corporations, or the economic benefits of cutting corners, which make society and government blind to the suffering of a marginalized group.

The problems faced by communities in the Philippines – be they land seizures, water contamination, increased malnutrition, mercury intoxication, sea level rise, or sex trafficking – have complex intersections and interactions. This means that dealing with an issue using an isolated and symptomatic approach cannot result in long term solutions; a systematic approach is required. Here is where the concept of sustainable development must be explicitly discussed. The Brundtland Commission 93 defines sustainable development as that which improves people’s life-enabling habits to meet needs in the present without compromising the ability of future generations to meet their needs. In this context it is only when economic security, ecological integrity, and social equality intersect can sustainable development be achieved. 94 With this in mind, human well-being is essential in combating environmental degradation, or adapting to adverse climatic changes. This is because poverty is both a cause and an effect of environmental degradation. As has been illustrated previously, negative impacts on the environment – whether caused directly by poorly managed industries or by macro climatic changes – have equally adverse consequences for society. The environment is the basis of our existence, and without nature’s capacity for regeneration or waste absorption, we would not be able to survive; this is most pertinent for those with a more direct interaction with the environment, and those with higher levels of poverty.

Ecological integrity is a critical component of sustainability and a requirement for poverty reduction. Without it, positive peace cannot be achieved. Positive peace, as defined by Harris 95 is defined as peace which is not only an absence of any of Galtung’s 96 three types of violence; it is also social justice and ecological sustainability. Hence, a lack of ecological sustainability results in risks that will consequently lead to more explicit and widespread violence and conflict. Homer-Dixon 97 links environmental degradation to increased risks of conflict. This takes an indirect pathway through economic struggles as a result of decreased primary industry capacity. Rural economic struggles result in migration to urban centers, increased social tensions and a greater risk of conflict. The situation in the Philippines is not too dissimilar from the theoretical pathway observed by Homer-Dixon. 98

In the Philippines, resource degradation, such as reduced water quality, and damage to crops from increased extreme weather events have led to a decrease in agricultural yield. This has led to migration to urban centers, as previously discussed, and has consequential impacts on increased sex trafficking and other horrifying realities. At this point, many non-agriculture sectors, such as tourism, business process outsourcing, and remittances from overseas Filipino workers, provide welcome opportunity and change for those who are currently most affected by the degradation of the environment. This helps struggling newly urban migrants and reduces the risk of conflict. However, Jasparro and Taylor 99 have theorized how the anticipated climate changes occurring in Southeast Asia will reduce state capacity and human security to the point where states may fail and produce non-state threats and conflicts. This, they suggested, would be a result of marginalized groups resorting to violence, warfare, and raiding in order to cope with increased environmental and climatic pressures.

There  is one question left to consider though: is it too late and is it enough? It would seem as though the national administration of the Philippines is implementing policies of varying successes in order to address the poverty of a significant portion of the population, and to develop in a way that the country is ready and capable of adapting to climate change. However, current measures may prove to make the agriculture sector, and society at large, more vulnerable to climate change. Furthermore, by restricting imports of food to create a facade of self-sufficiency, the Philippine administration is effectively attempting to fudge the numbers, and by doing so, increasing malnutrition and food insecurity for a significant number of their most vulnerable citizens.

Retroactively acknowledging and addressing the long-term damage done to the environment from industries such as mining and tourism, may not be enough to combat the violence suffered by the local communities. Furthermore, however gallant and admirable the new goals may be, it is questionable as to whether they will withstand global pressure, and whether the intricately linked needs of the poor and the environment can be prioritized over the ability to make easy money. If this proves unsuccessful, and the previous rate of mining and subsequent degradation resumes, the combined impacts on the rural poor may be too much. Not only this, but the impacts suffered through a hard-line approach to violations of environmental regulations will have a greater impact on lower socioeconomic households who rely on income from work in mining or tourism.

Perhaps there can be another approach to restorative relationships between government, local communities, and many of the transnational corporations who provide significant sources of income. The Commission on Human Rights for the Republic of the Philippines (CHR) has begun an inquiry into climate change within the human rights framework, with a particular emphasis on “carbon majors” and their potential responsibility in contributing to climate change and its impacts on the rights of people in the Philippines. 100 These “carbon majors” are non-state entities which are transnational producers of oil, natural gas, coal, and cement. The first hearing began in late March 2018, the inquiry will continue throughout the year and draw on community dialogues and experts from both scientific and human rights disciplines. 101 The aim of this inquiry is to improve measures to protect and promote human rights in the Philippines in an era or climatic changes, it also seeks to determine the liability of companies which have had a notable contribution to climate change. 102 103  While the interwoven nature of climate change and industry may prove a challenge for this inquiry, its goals are admirable and should provide intensely beneficial recommendations for community, government policy, and corporations. As the CHR is an independent body, any recommendations should consider the implications for the environment as well as local employment and income reliance.

Due to its geography of being an exposed archipelago, the Philippines is incredibly vulnerable to projected climate change impacts. Mining and agriculture play an important role in the health of the environment and when combined with the expected impacts of climate change, provide the Philippines with significant risks, including food insecurity, increased prevalence of disease, and income and settlement vulnerability. The ability for local communities to be resilient to these changes and impacts are both equipped and hindered by different industry-specific government policies. The detrimental effect of climate change and industry impacts on the environment culminate and combine to exacerbate marginalized groups vulnerability. This vulnerability is reconceptualized within the scope of this paper in Galtung’s forms of violence. This violence poses further threats for the attainment of positive peace and sustainable development.  

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Kintisch, Eli. “Can coastal marshes rise above it all?” Science 341, no. 6145 (2013): 480-481.

Knutson, Thomas R., John L. McBride, Johnny Chan, Kerry Emanuel, Greg Holland, Chris Landsea, Isaac Held, John P. Kossin, A.K. Srivastava, Masato Sugi. “Tropical Cyclones and Climate Change.” Nature Geoscience 3, no. 3 (2010): 157-163.

Mining Association of Canada. TSM101: A primer .  https://mining.ca/wp-content/uploads/2021/10/TSM-Primer-English.pdf

National Aeronautical Space Administration (NASA). What is Climate Change? https://www.nasa.gov/audience/forstudents/k-4/stories/nasa-knows/what-is-climate-change-k4.html

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Philippine Statistics Authority. 2017a. “Poverty: Fishermen, farmers, and children constantly post the highest rates of poverty among basic sectors.” http://psa.gov.ph/poverty-press-releases

___. 2017b “Tourism.” http://openstat.psa.gov.ph/Database

___. 2017c “Total number of OFWs estimated at 2.2million (results from the 2016 survey on overseas Filipino Workers.” https://psa.gov.ph/content/total-number-ofws-estimated-22-million-results-2016-survey-overseas-filipinos

___. 2017d “Gross National Income and Gross Domestic Product: Gross Value added in mining and quarrying.” http://psa.gov.ph/nap-press-release/sector/Mining%20and%20Quarrying

___. 2017e. “Population and housing.” https://psa.gov.ph/population-and-housing

Rumney, Emma. “Philippines Agriculture counterproductive, warns OECD.” Public Finance. April 10, 2017.

Serapio, Manolo. “Philippine’s Duterte keeps open pit mining ban in policy clash.” Reuters. November 20, 2017.

Simbulan, Roland G. “Indigenous Communities’ Resistance to Corporate Mining in the Philippines.” A Journal of Social Justice 28 (2016): 29-37.

Singh, A. “A Canadian era for Mining in the Philippines.” Asia Pacific Post. January 23, 2018.

Su, Glenn Io Sia. “Correlation of climatic factors and dengue incidence in Metro Manila, Philippines.” AMBIO: A Journal of the Human Environment 37, no. 4 (2008): 292-294.

UN DESA Statistics Division. “The Millennium Development Goals Report 2009.” New York: United Nations Department of Economic and Social Affairs, 2009.

UN Economic and Social Council. “Human rights and indigenous issues: Mission to the Philippines.” 2003. https://documents-dds-ny.un.org/doc/UNDOC/GEN/G03/115/21/PDF/G0311521.pdf?OpenElement

UN HABITAT. “The State of Asian Cities 2010/2011.” Fukuoka: UN Habitat, 2011.

Villanoy, Cesar., Laura David, Ollivia Cabrera, Michael Atrigenio, Fernando Siringan, Porfirio Alino, Maya Villaluz. “Coral reef ecosystems protect shore from high-energy waves under climate change scenarios.” Climatic Change 112, no. 2 (2012): 493-505.

Wassman, R., Krishna SV Jagadish, K. Sumfleth, Surendra Pathak, G. Howell, A. Ismail, Rachid Serraj, E. Redona Rakash Kumar Singh, Sigrid Heuer. “Regional vulnerability of climate change impacts on Asian rice production and scope for adaptation.” In Advances in Agronomy , Vol. 102, Burlington (VT): Academic Press, 2009.

Wong, Poh Poh., Inigo J. Losada, Jean-Pierre Gattuso, Jochen Hinkel, Abdellatif Khattabi, Kathleen L. McInnes, Yoshiki Saito, Asbury Sallenger. “Coastal systems and low-lying areas.” In Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge: Cambridge University Press, 2014.

World Bank. 2017a. “Philippines Economic Update April 2017.” http://www.worldbank.org/en/news/feature/2017/05/04/philippines-economic-update-april-2017

World Bank. 2017b. “Agriculture, value added (% of GDP).” https://data.worldbank.org/indicator/NV.AGR.TOTL.ZS

World Bank. 2017c. “Employment in Agriculture % in total employment. https://data.worldbank.org/indicator/SL.AGR.EMPL.ZS

World Commission on Environment and Development. Our Common Future. New York: Oxford University Press, 1987.

Yamano, Hiroya., Kaoru Sugihara, Keiichi Nomura. “Rapid poleward range expansion of tropical reef corals in response to rising sea surface temperatures .” Geophysical Research Letters 38, no. 4 (2011): 1-6 

1 Roehlano Briones, “The Philippines Country Environmental Analysis Land Degradation and Rehabilitation in the Philippines.” The World Bank, 2009.

2 Food and Agriculture Organization. 2017a. Philippines. http://www.fao.org/faostat/en/#country/171

3 IMF. Data Mapper: Real GDP Percentage Change. http://www.imf.org/external/datamapper/NGDP_RPCH@WEO/OEMDC/ADVEC/WEOWORL...

4 World Bank. 2017a. “Philippines Economic Update April 2017.” http://www.worldbank.org/en/news/feature/2017/05/04/philippines-economic-update-april-2017

5 Food and Agriculture Organization, 2017a.

6 Asia Development Bank. “Eradicating poverty and promoting prosperity among a changing Asia-Pacific.” https://www.adb.org/sites/default/files/publication/235276/eradicating-p...

7 National Aeronautical Space Administration (NASA). What is Climate Change. https://www.nasa.gov/audience/forstudents/k-4/stories/nasa-knows/what-is-climate-change-k4.html

8 International Panel on Climate Change (IPCC). History. https://www.ipcc.ch/about/history/

9 Yasuaki Hijioka, Erda Lin, Joy Jacqueline Pereira, Richard T. Corlett, Xuefeng Cui, Gregory Insarov, Rodel Lasco, Elisabet Lindgren, Akhilesh Surjan, “Asia,” in Climate change 2014: Impacts, adaptation, and vulnerability. Part B: Regional Aspects, Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (Cambridge University Press, Cambridge, United Kingdom and New York, NY, 2013), 1327-1370.

10 Matthew Collins, Reto Knutti, Julie Arblaster, Jean-Louis Dufresne, Thierry Fichefet, Pierre Friedlingstein, Xuejie Gao, et al, “Long-Term Climate Change: Projections, Commitments and Irreversibility,” in Climate Change 2013: The Physical Science Basis. Contributions of the Working Group 1 to the Fifth Assessment of Report of the Intergovernmental Panel on Climate Change (Cambridge, United Kingdom: Cambridge University Press, 2013).

11 A.-L. Daniau, P.J. Bartlein, S. P. Harrison, I.C. Prentice, S. Brewer, P. Friedlingstein, et al, “Predictability of biomass burning in response to climate changes,” in Global Biogeochemical Cycles 26 no.4 (2009). https://doi.org/10.1029/2011GB004249

12 Hijioka et al, “Asia.”

14 Delpla et al, “Impacts of climate change on surface water quality in relation to drinking water production.” Environment International 35 (2009): 1225–1233. https://doi.org/10.1016/j.envint.2009.07.001

16 Collins et al, “Long-term change: Projections, commitments and irreversibility,” 2013.

17 Yamano, Hiroya, Kaoru Sugihara, Keiichi Nomura, “Rapid poleward range expansion of tropical reef corals in response to rising sea surface temperatures.” Geophysical Research Letters 38, no. 4 (2011): 1-6.

18 Hijioka et al, “Asia,” 2013.

19 John Church, Peter Clark, David Bahr, Jason Box, David Bromwich, Mark Carson, William Collins, et al, “Sea Level Change,” in Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (Cambridge, United Kingdom: Cambridge University Press, 2013), 1137–1217.

20 Thomas R. Knutson, John L. McBride, Johnny Chan, Kerry Emanuel, Greg Holland, Chris Landsea, Isaac Held, John P. Kossin, A.K. Srivastava, Masato Sugi, “Tropical Cyclones and Climate Change ,” Nature Geoscience 3, no. 3 (2010): 157-163.

21 Eric Gilman, Joanna Ellison, Norman Duke, Colin Field, “Threats to mangroves from climate change and adaptation options: a review,” Aquatic Botany 89, no 2 (2008): 237-250.

22 Eli Kintisch, “Can coastal marshes rise above it all?” Science 341, no. 6145 (2013): 480-481.

23 Keryn Gedan, Matthew Kirwan, Eric Wolanski, Edward Barbier, Brian Silliman, “The present and future role of coastal wetland vegetation in protecting shorelines: answering recent challenges to the paradigm,” Climatic Change 106, no 1(2011): 7-29.

24 Cesar Villanoy, Laura David, Ollivia Cabrera, Michael Atrigenio, Fernando Siringan, Porfirio Alino, Maya Villaluz, “Coral reef ecosystems protect shore from high-energy waves under climate change scenarios,” Climatic Change 112, no. 2 (2012): 493-505.

25 World Bank, 2017c, “Employment in Agriculture % in total employment. https://data.worldbank.org/indicator/SL.AGR.EMPL.ZS

26 Food and Agriculture Organization, 2017b. http://www.fao.org/faostat/en/#data/QC

27 Philippine Statistics Authority, 2017a. “Poverty: fishermen, Farmers, and Children constantly post the highest rates of poverty among basic sectors. http://psa.gov.ph/poverty-press-releases

28 Philippine Statistics Authority, 2017b “Tourism.” http://openstat.psa.gov.ph/Database

29 Philippine Statistics Authority, 2017c “Total number of OFWs estimated at 2.2million (results from the 2016 survey on overseas Filipino Workers.” https://psa.gov.ph/content/total-number-ofws-estimated-22-million-results-2016-survey-overseas-filipinos

30 Philippine Statistics Authority, 2017d “Gross National Income and Gross Domestic Product: Gross Value added in mining and quarrying.” http://psa.gov.ph/nap-press-release/sector/Mining%20and%20Quarrying

31 Poh Poh Wong, Inigo J. Losada, Jean-Pierre Gattuso, Jochen Hinkel, Abdellatif Khattabi, Kathleen L. McInnes, Yoshiki Saito, Asbury Sallenger, “Coastal systems and low-lying areas,” In Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects, Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (Cambridge: Cambridge University Press, 2014).

32 Hijioka et al, “Asia.”

33 John Gray, Ian Greaves, Dorina Bustos, David Krabbenhoft, “Mercury and methylmercury contents in mine-waste, calcine, water, and sediment collected from the Palawan Quicksilver Mine, Philippines,” Environmental Geology 43, no. 3 (2003): 298-307.

34 James Appleton, Jason Weeks, J Calvez, and C Beinhoffd, “Impacts of mercury contaminated mining waste on soil quality, crops, bivalves, and fish in the Naboc River area, Mindanao, Philippines,” Sciences of the Total Environment 354, no 2-3 (2006): 198-211.

35 Redempto Anda, “Gov’t study confirms widespread mercury poisoning in 2 villages in Puerto Princesa City,” Inquirer.net. June 7, 2017.

36 Food and Agriculture Organization, “Soil resources depletion and deforestation: Philippines case study in resource accounting,” 2007. http://www.fao.org/docrep/006/AB604E/AB604E02.htm#TopOfPage

37 Leoc Aragao, “Environmental science: the rainforest’s water pump.” Nature 489 (2012): 217-218.

38 Briones, “The Philippines Country Environmental Analysis Land Degradation and Rehabilitation in the Philippines.”

39 R.B. Badayos, and F. C. Calalo, “Farm sustainability and organic farming,” in Securing Rice, Reducing Poverty: Challenges and Policy Directions, SEARCA, College, Laguna, 2007.

40 R. Wassman et al, “Regional vulnerability of climate change impacts on Asian rice production and scope for adaptation.” In Advances in Agronomy, Vol. 102, Burlington: Academic Press, 2009.

41 Hijioka et al, “Asia.”

42 Appleton et al, “Impacts of mercury contaminated mining waste,” 2006.

43 Philippine Statistics Authority, 2017e, “Population and housing.” https://psa.gov.ph/population-and-housing

44 Hijioka et al, “Asia.”

47 Glenn Io Sia Su, “Correlation of climatic factors and dengue incidence in Metro Manila, Philippines,” AMBIO: A Journal of the Human Environment 37, no. 4 (2008): 292-294

48 Hijioka et al, “Asia.”

49 Philippine Statistics Authority, 2017a, “Poverty: Fishermen, Farmers, and Children constantly post the highest rates of poverty among basic sectors.”

50 UN DESA Statistics Division, “The Millennium Development Goals Report 2009” (New York: United Nations Department of Economic and Social Affairs, 2009).

51 Hijioka et al, “Asia.”

53 UN HABITAT, “The State of Asian Cities 2010/2011).” Fukuoka: UN Habitat, 2011

54 Alvin Chandra, Karen E McNamara, Paul Dargusch, Ana Maria Caspe, and Dante Dalabajan, “Gendered Vulnerabilities of Smallholder Farmers to Climate Change in Conflict-Prone Areas: A Case Study from Mindanao, Philippines,” Journal of Rural Studies 50 (2017): 45–59. doi:10.1016/j.jrurstud.2016.12.011.

55 Hijioka et al, “Asia.”

57 A. Singh, “A Canadian era for Mining in the Philippines.” Asia Pacific Post. January 23, 2018.

58 Manolo Serapio, “Philippine’s Duterte keeps open pit mining ban in policy clash,” Reuters, November 20, 2017.

59 Adrian Finighan, “Philippines Mining shutdown,” Al Jazeera. 2017, February 11. Retrieved from: https://www.aljazeera.com/programmes/countingthecost/2017/02/philippines-mining-shutdown-170211080450892.html

60 Singh, “A Canadian era for Mining in the Philippines.”

61 Finighan, “Philippines Mining shutdown.”

63 Singh, “A Canadian era for Mining in the Philippines.”

64 Serapio, “Philippine’s Duterte keeps open pit mining ban in policy clash.”

65 Mining Association of Canada, “TSM101: A primer.” https://www.minerals.org.au/sites/default/files/MAC%20TSM%20101%20-%20A%20Primer.pdf

67 Singh, “A Canadian era for Mining in the Philippines.”

68 Serapio, “Philippine’s Duterte keeps open pit mining ban in policy clash.”

69   Antonio Contreras, “Blood and money in the sand: The tragic story of the Atis of Boracay.” The Manila times. February 27, 2018. http://www.manilatimes.net/blood-money-sand-tragic-story-atis-boracay/38...

70 Antonio Contreras, “Blood and money in the sand: The class dimension of Boracay environmental disaster.” The Manila Times . March 1, 2018. http://www.manilatimes.net/blood-money-sand-class-dimension-boracay-envi...

71 OECD. “Agricultural Policies in the Philippines.” Paris: OECD Publishing, 2017.

75 Caesar Cororaton, Erwin Corong, 2009. “Philippine Agriculture and Food Policy: Implications for poverty and income distribution” https://ageconsearch.umn.edu/record/55512/files/rr161.pdf

76 OECD. “Agricultural Policies in the Philippines.”

80 Cororaton and Corong, “Philippine Agriculture and Food Policy: Implications for poverty and income distribution.”

81 OECD, “Agricultural Policies in the Philippines.”

82 Emma Rumney, “Philippines Agriculture counterproductive, warns OECD.”

83 Chandra et al, “Gendered Vulnerabilities of Smallholder Farmers to Climate Change in Conflict-Prone Areas: A Case Study from Mindanao, Philippines.”

87 Christopher Jasparro, Taylor Jonathan, “Climate Change and Regional Vulnerability to Transnational Security Threats in Southeast Asia.”

88 UN Economic and Social Council, “Human rights and indigenous issues: Mission to the Philippines.”

90 Roland Simbulan, Roland G. “Indigenous Communities’ Resistance to Corporate Mining in the Philippines.”

91 ASEAN, “Best Practice on sustainable mineral development in ASEAN.” http://asean.org/?static_post=sustainable-practice-minerals-development-best-practices-asean

92 Johan Galtung, “Conflict as a way of life.” In Progress in Mental Health. London: Churchill Press, 1969.

93 World Commission on Environment and development. “Our Common Future.” New York: Oxford University Press, 1987.

94 Robert Gibson, “Beyond the pillars: sustainability assessment as a framework for effective integration of social, economic and ecological considerations in significant decision-making.” Journal of Environmental Assessments and Political Management 8, no 3 (2006): 259-280

95 Ian Harris, “Peace Education in a postmodern World: A special issues of the Peabody journal of education.” London: Taylor and Francis, 2004.

96 Galtung, “Conflict as a way of life,” 1969.

97 Thomas Homer-Dixon, Environment, scarcity and Violence. New York: Princeton University Press, 1999.

99 Jonathan Jasparro, “Climate Change and Regional Vulnerability to Transnational Security Threats in Southeast Asia.”

100 CHR, “CHR to conduct first hearing investigating possible contribution of carbon to climate change and its impacts on human rights,” 2018.

102   Ibid.

103   Ibid. 

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Climate change and mental health in the Philippines

Rowalt carpo alibudbud.

Assistant Professorial Lecturer, Department of Sociology and Behavioral Sciences, De La Salle University, Manila, Philippines. Email: [email protected]

Associated Data

Data availability is not applicable to this article as no new data were created or analysed in this study.

The mental health repercussions of the climate crisis are observed annually in the Philippines, one of the world's most climate-vulnerable countries. This paper explores these repercussions by examining the aftermath of Typhoon Haiyan. It shows that mental health problems persisted beyond the typhoon's immediate aftermath among a large number of survivors. Since the mental health system was fragile, the affected community improved their mental health services through the help of local and international non-governmental organisations. Nonetheless, several challenges must be addressed as the country faces the climate crisis.

Climate change has a negative impact on the mental health of populations. Climate-related changes in humidity, rainfall, droughts, wildfires and floods are associated with psychological distress, poorer mental health, increased mortality among people with mental disorders, higher psychiatric hospital admissions and heightened suicide rates. 1 In the Philippines, evidence suggests that climate-related events may worsen anxiety, distress and health inequalities among Filipinos. 2 , 3

Climate change in the Philippines

The Philippines is one of the world's most climate-vulnerable countries. 2 It is confronted with at least 20 typhoons every year, which lead to the destruction of houses and livelihoods, displacement of thousands and hundreds of deaths. 3 It also experiences extreme droughts and rising sea levels. 2 , 3 These not only lead to the forced displacement of communities but also threaten food security. 2 , 3 Given the negative effects of these adverse social and environmental conditions on mental health, 4 climate-related anxiety has affected the Philippine population. In 2022, a global survey showed that the Philippines has the highest number of young people experiencing high levels of anxiety and negative emotions associated with the climate crisis. 3 Thus, there is an ever-increasing need for a strong and resilient mental health system.

Typhoon Haiyan and its mental health repercussions

The intersection of mental illness and the climate crisis in the Philippines is exemplified in the aftermath of Super Typhoon Haiyan (local name Yolanda) in November 2013. 5 , 6 Typhoon Haiyan is one of the strongest typhoons to ever hit land in recorded history. 5 , 6 It has turned thriving communities into wastelands, destroyed decades-long livelihoods, displaced four million people, destroyed one million homes and killed at least 6000 people. 5 , 7 In its aftermath, local health authorities noted that those needing psychological help easily tripled because the population ‘were all shocked’. 5 Likewise, the authorities also stated that there were rising cases of post-traumatic stress disorder (PTSD) and depression. 5 Although no official records were collated at that time owing to limited resources and lack of structure, 5 a study found that about 80.5% of survivors who helped with the typhoon relief response were at risk for mental disorders 4 months after the typhoon. 8 This rate of people at risk for mental disorder following the typhoon is higher than the estimated national rate of common mental disorders in the Philippines, such as schizophrenia (0.4%) and depression (14.5%), before the typhoon. 9 It is also higher than the rate of PTSD (7–24%) found after other natural disasters, such as the 2005 Hurricane Katrina, the 2004 Asian tsunami and the 2010 Yushu earthquake, as well as depression (14%) and psychological distress (15%) following the 2011 Japan earthquake. 10

However, at that time, only ten psychiatrists served a population of 4.7 million in the Philippines’ critically hit region, Eastern Visayas. 5 This was worsened by the badly damaged regional hospital. 5 , 6 Thus, international and national organisations became the primary providers of mental health services. 5 However, it was reported that there was no clear structure in these services: ‘some were already “overprocessed,” having received so many psychological services. But many others, especially poorer communities, were left behind’. 5 Thus, the months following the aftermath of Typhoon Haiyan led to extreme social and mental health adversities against a background of a fragile mental health system.

A year after, the World Health Organization (WHO) estimated that over 800 000 people in the region suffered from various mental health conditions. Although most of these people could be treated in their homes, at least 10% needed comprehensive psychiatric treatment for depression, anxiety, PTSD or schizophrenia, including further medication and support. 6 For the survivors, it was ‘stark evidence [of] why we need to address the mental health situation, because every time these disasters come, it takes a mentally healthy individual to cope with challenges’. 5 Hence, mental health adversities from Typhoon Haiyan persisted in a large number of survivors even a year later.

Given the evident shortcomings in the mental health care system and the persistent mental health problems after Typhoon Haiyan, the Eastern Visayas region partnered with the WHO to establish the Mental Health Gap Action Programme for all its health units. 5 As a result, by December 2014, it became the first Philippine region where mental healthcare and support are present at primary, secondary and tertiary healthcare levels. 5 In the same year, 300 community workers and 70 health professionals were trained to assess and treat severe mental health problems. 5 The regional government further supported these efforts by allocating a budget for disaster response and community-based interventions for psychosocial needs in the succeeding years. 5 Thus, various mental health system improvements have been accomplished in Eastern Visayas by incorporating mental health services into primary care and augmenting the mental health workforce with the help of non-governmental organisations.

Towards building a climate-responsive mental health system

Although several improvements have indeed been accomplished, several challenges remain for the Philippine mental health system. Among other things, mental health stigma remains pervasive in the Philippines, including Eastern Visayas. 5 Moreover, only 3–5% of the total government health budget is spent on mental health. 2 Human resources are also scarce, with only about 0.5 psychiatrists per 100 000 population and a total ratio of 2 to 3 mental health workers per 100 000 population. 11 , 12 Given this situation, the country's new Mental Health Act in 2018 was met with the hope of filling these gaps in mental health services. 2

The Mental Health Act mandates the government to strengthen mental health research, increase the mental health workforce through training, provide mental health services in all hospitals and community health centres, and expand mental health promotion in schools, communities and workplaces. 2 , 11 , 12 In addition, envisioning the future climate crisis needs of the Philippines, it advocates hope that it can act as a springboard for creating a climate-resilient and accessible mental health system. 2

Nonetheless, the Mental Health Act has been critiqued as ‘nothing more than “just an act”’. 13 This is because healthcare expenditure for mental health remained at 3–5% despite the Act's implementation. 13 , 14 Likewise, the ratio of psychiatrists remained low (0.4 psychiatrist per 200 000 population) compared with other Western Pacific countries of similar economic status, such as Indonesia. 13 Moreover, there remains a paucity of research that can translate to evidence-based culturally sensitive interventions and policies. 14 The Act's implementation was also criticised for its disproportionate focus on clinical mental health, resilience and individual coping, despite the resonating need for social intervention for social environmental factors, such as climate change, experienced in the Philippines. 14 Consequently, mental health promotion and services were regarded as outdated despite the new Mental Health Act. 13 , 14

Given the Philippines’ vulnerability to the worsening climate crisis and the weaknesses in its mental health system, reforms and improvements are needed in mental health services, resources and policy implementation. As exemplified by the Eastern Visayas region, this can be started by integrating mental health services into primary care services, increasing the mental health training of health professionals and community workers, collaborating with non-governmental organisations and sustaining support towards achieving better mental health. 5 , 6 In addition, the low number of psychiatrists and mental health professionals can be addressed by supporting and increasing training institutions and their capacity. Furthermore, since there is high climate-related anxiety among Filipino youth, hope-based climate education for the empowerment of young people can also be provided since there is evidence that this might help them cope. 7 Likewise, mental health information systems need to be strengthened to adequately assess the needs of disaster-affected localities, including accounting for affected populations and mental health workers. By doing so, data from the information systems can inform mental health and psychosocial support services in affected localities. Importantly, the implementation of the Mental Health Act must be strengthened.

Conclusions

Overall, the mental health repercussions of the climate crisis are experienced annually in the Philippines. It has exposed weaknesses in the Philippines’ mental health system, including low human resources, lack of funding and poor policy implementation. Despite having limited resources, as have other low- and middle-income countries, societal efforts paved the way for improvements in recent years. Nonetheless, more needs to be done as the country gears up for future challenges stemming from the climate crisis. As a start, evidence suggests a need to strengthen disaster responder training, social support, surveillance systems and communication in disaster response. 8 , 10 Moreover, further research, including longitudinal studies, is needed to understand climate-related mental health conditions and responses. 2 , 8 , 10

Data availability

This research received no specific grant from any funding agency, commercial or not-for-profit sectors.

Declaration of interest

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[OPINION] ‘Filipino time’ and acting on the climate crisis

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[OPINION] ‘Filipino time’ and acting on the climate crisis

Illustration by Janina Malinis

It may be a new year, but the same problems remain for climate action.

It is baffling that the Philippines, one of the most vulnerable nations to the climate crisis, has yet to submit its first official Nationally Determined Contributions (NDC) more than 5 years after the adoption of the Paris Agreement. In fact, it remains one of the very few countries left to accomplish this.

The finalization and submission of the NDC for the Philippines is part of its commitment to achieving the goals of the Paris Agreement, especially limiting global warming to 1.5 degrees Celsius above pre-industrial levels by 2030. This self-determined pledge of adaptation and mitigation measures is vital to attaining sustainable industrial development, poverty eradication, energy security, and social and climate justice for the benefit of all Filipinos. 

‘Midnight survival’

Despite ratifying the global agreement in 2017, the country has missed out on multiple self-imposed deadlines for the submission of this climate pledge. As a result, the Philippine government pushed for its submission by December 31, 2020, called by some as the “midnight survival” deadline. This would partly enable the nation to access means of implementation such as finance, technologies, and capacity-building to implement its proposed climate-related programs and projects as soon as possible.

After years of anticipation, what was presented to non-government stakeholders was a three-page document that was nothing short of disappointing. 

This version committed the Philippines to a 30% reduction of greenhouse gas (GHG) emissions by 2040, yet it lacks other key information such as clear adaptation and mitigation strategies to be undertaken and a finalized cost-benefit analysis of these measures. Without such content, it would be more difficult for the Philippines to negotiate with developed countries to acquire the necessary means of implementation. 

Ultimately, the Philippine government decided to not pursue the “midnight survival” deadline, considering the lack of high ambition and other missing content in said document. Furthermore, the terms of the decisions that led to the adoption of the Paris Agreement also state that Parties can submit their NDCs as late as 9 months before the next global climate conference. Climate change may also be a political issue, but actions against it must not be hindered by politics. 

While it is good to see that quality has been prioritized over punctuality at this juncture, it never should have come to this. For the past few years, civil society groups observed familiar issues with the NDC development process, such as bureaucratic inefficiencies, lack of sufficient coordination among government agencies, and lack of adequate inclusion of non-government stakeholders. 

Some of the presented mitigation actions to be included in this document were also not aligned with addressing the climate emergency. For instance, among the solutions from the energy sector is the entry of highly-efficient coal technologies, despite coal being one of the major sources of GHG emissions. This is against the Department of Energy’s recent moratorium on new coal-fired power plants, which shows a lack of coherence in existing policies. 

[OPINION] In action or inaction: A year of change in our climate?

[OPINION] In action or inaction: A year of change in our climate?

More ambitious

Now afforded with a few more months, the Philippines must maximize its remaining time to create a more meaningful NDC, aligned with national plans for attaining sustainable development and pursuing climate justice. 

Among the most important inclusions is to fully commit to have its GHG emissions peak on or before 2030. This allows the country to better embody climate justice, through avoiding the same pollutive technologies and practices used by developed nations that led to the climate crisis in the first place. It is also aligned with the goal of achieving net-zero emissions by 2050.

To achieve this, emissions avoidance must be emphasized over simply reducing emissions in the NDC. This includes measures such as banning new coal-fired power plants, renewable energy development, and improving energy efficiency in agriculture, industry, and other sectors. In relation, protecting and enhancing natural carbon sinks such as forests and blue carbon can remove excess GHGs from the environment and further mitigate global warming.

This is a relatively low-cost approach that allows the Philippines to allot more resources to address other pressing issues. Aligned with the realities of a just transition, intermediary technologies such as carbon capture and storage may also be pursued to further reduce the country’s GHG emissions. 

Our climate pledge must also reflect the interlinkages between sectors involved in these mitigation and adaptation actions, which were missing in the draft NDC. An economy-wide approach to reducing emissions and enhancing climate resilience also allows cross-cutting issues such as health, education, and gender equality to be more effectively addressed. These are critical to attracting more investments for climate-proofing our infrastructures and systems, which is an intended strategy by the Philippine government through the NDC.

Just as importantly, the official NDC and the process of its development must genuinely embody a “whole-of-society” approach, which was lacking for the past few years. Every Filipino, from the present or future generations, is a stakeholder in the fight against the climate emergency; this means that everyone must be given enough spaces to actively participate in appropriate NDC-related activities. Without this element, our country is unlikely to achieve its development goals, climate-related or otherwise.

Of all the cultural traits reflected in our climate pledge, “Filipino time” has stood out so far. As a self-determined commitment, we hope to see more transparency, inclusivity, cohesion, and timeliness as we enter a critical period for climate action. We cannot afford to be left behind again as the world moves forward. – Rappler.com

John Leo Algo is the Program Manager of Living Laudato Si’ Philippines and the interim Secretariat of Aksyon Klima Pilipinas. He has been a citizen journalist and op-ed writer since 2016. 

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In conversation with the Institute Henry Dimbleby: Food security is inseparable from sustainability

The author of the UK’s National Food Strategy thinks the agri-food sector can deliver on climate and environmental goals, but value chain partners need to be convinced that it is in their interest to change. Regulatory force will not work.

climate change in the philippines essay

Henry Dimbleby has worked at the intersection of food and sustainability for more than two decades. He authored the UK’s 2021 National Food Strategy, an independent assessment of the UK’s food system, and served as a non-executive director on the board of the UK Department for Environment, Food, and Rural Affairs between 2018 and 2023. A successful serial entrepreneur, Henry co-founded the restaurant chain Leon and more recently the investment firm Bramble Partners.

Photo of Henry Dimbleby

Today’s global food system produces enough to feed everyone, but not everyone has enough food, or eats the right kind. How did we get to this point?

For me, the modern story starts after the second world war. The population was projected to grow from 2.8 billion to 8 billion over 50 years. Newspaper headlines were full of Malthusian predictions of hunger and resource wars. Thanks to Normal Borlaugh, the most important person nobody knows about, those predictions never came true.

A botanist by trade, the Rockefeller Foundation sent him to Mexico in the 1940s to improve their agricultural system. Through stubbornness and luck, he cross-bred a short-stem Japanese variety of wheat with other varieties to create a new high-yield, disease resistant strain. Alongside other advances, such as synthetic fertilizers and irrigation techniques, Mexico went from importing 60% of its wheat in 1944, to self-sufficiency in a decade. Borlaugh was the father of the Green Revolution. 

Did the Green Revolution create new challenges?

Producing food is by far the biggest cause of biodiversity collapse, water pollution and shortages, and soil erosion. After energy, it is the biggest cause of climate change.

Synthetic fertilizers are responsible for 2% of global emissions. Climate change will impact where and how food can be grown, taking us back to a 1940s situation where there are fears of resource wars and mass migration. On the health side, the food we produce is the biggest cause of avoidable ill health globally. It costs the UK economy over GBP 100bn a year. By 2035, Type 2 diabetes is expected to cost the UK health system more than cancer does today.

How do you think about sustainability and food security?

Food security cannot be decoupled from sustainability.

Take climate; there is cause and effect in both directions. Producing food leads to emissions, while a changing climate affects where and how food can grow. Biodiversity is much more complicated. It is difficult to measure, and how we depend on it is also hard to grasp. I think the global community is taking this more seriously. Whereas food was backstage at previous COPs, it was center stage at the most recent, COP 28.

How do we balance producing enough food with reducing emissions, while leaving space for nature?

Solving this equation requires a 3-compartment-model. First, we need more wild land; second, we need farmland with intentionally lower yields and room for nature to thrive, such as on organic farms. Finally, we need intensive farming that uses far fewer inputs, so called sustainable intensification.

This does not mean ‘bad for the environment’—even the most intensive farming can incorporate elements of ‘regenerative farming’, such as no till or cover crops.

Is nutrition talked about enough?

The conversation is only beginning. In the UK’s National Food Strategy we talked about Ultra Processed Foods (UPF), and it has now exploded into the public consciousness. Humans have evolved to find their characteristics irresistible. High in sugar, salt, and fat, these foods have their water removed during processing, making them calorie dense. They are also soft and low in soluble fiber and thus don’t fill us up, so we eat even more, pushing up obesity rates. On the flip side, there is an issue of ‘hidden hunger’, where people get Type 2 diabetes without being overweight, due to high sugar consumption disrupting their insulin production.

Some have managed to stay away from UPFs. Spain and France consume around 15%, but it’s closer to 50% in the UK. The problems are spread across society, but generally they are focused on the poorest income brackets. 

In many developing countries there is this bifurcated problem, where the poorest face nutritional scarcity, but the richest suffer more from Western diet-related health conditions.

What is the best approach for governments to approach the agri-food transition?

One in seven people work in agriculture globally. It is around 12% of global gross domestic product. But top down, brute force policies will not work. They alienate farmers, at a time when there is already so much uncertainty with rising energy and fertilizer costs. The recent farming protests are evidence for this.

For me, the fix is to convince farmers it is in their interest to change. I think more countries should adopt the UK’s Environmental Land Management scheme, which ties public farming subsidies to the provision of public goods. 

Is there a significant role for companies in promoting health?

I think companies can’t do much to change our love of junk food. The commercial incentive to sell us food that we love is too strong. But food companies can do a lot on the environmental side. Farming is such a small component of the price of food that companies face a small commercial threat from encouraging producers to act more sustainably.

What are some promising, and not so promising, solutions?

There is so much innovation going on. But the two big areas that are not living up to expectations are vertical farming, and alternative proteins. These technologies will play a role in the future, but I think people initially misunderstood the economics. 

What is the role of capital providers in advancing sustainable food systems?

Regulation needs to kick off the transition, but when it does, capital needs to flow to businesses that are positioned to capture profits. Really, it is good old-fashioned capital doing what it does—helping companies get to profitability, move down cost curves, and open new markets.

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Climate agenda

It took only six hours for last month’s Typhoon Karding to develop into a supertyphoon — showing how storms have become unpredictable due to climate change. Those who were in its path were not exactly unprepared — previous typhoons have taught them hard lessons — but they were still caught off guard by its intensity. This situation will prevail, with even worse consequences, if the government continues to romanticize Filipino resilience instead of being accountable — and this is as worse as denying that climate change exists.

Last Oct. 5, President Marcos Jr. assured that the country’s resiliency and adaptation to the new normals of climate change, which he called the world’s “first truly global crisis,” are on top of his administration’s national agenda. This policy direction, however, will remain as mere rhetoric unless matched by tangible programs aimed at not only mitigating the impact of disasters on Filipinos, but equipping them with more knowledge and options to avoid death and damage to property. These could include livelihood initiatives that are insulated from extreme weather events, and better infrastructure in the form of public housing and permanent evacuation centers across the country.

Based on the World Risk Index 2022 , the Philippines ranks as the most disaster-prone country in the world, with an index score of 46.82. Each Filipino will have their own disaster story to tell, whether they live in rural or urban areas. Sixty-two percent of the population live in coastal areas, including major cities, where they are likely to experience the full wrath of typhoons. And even those who are not in the coastal zones may be living along fault lines instead, or in areas where human activities such as logging and mining pose risks to their lives.

Ironically, in a survey conducted by Pulse Asia last month, only 9 percent of the respondents believed that “stopping the destruction and abuse of our environment” was an urgent national issue. Understandably, controlling inflation (66 percent), increasing workers’ pay (44 percent), creating more jobs (35 percent), reducing poverty (34 percent), and fighting graft and corruption (22 percent) are gut issues that need urgent attention from the government, but environmental issues are part of the chain that impacts Filipinos’ lives, their livelihood, and food security.

Aside from stronger typhoons, climate change is expected to bring higher sea levels and storm surges, the main cause of deaths for thousands during Supertyphoon Yolanda in 2013. These climate-related impacts will affect the farming and fishing industries, and reduce the productivity of farmers and fisherfolk impacting the availability and cost of food — which, in fact, is already happening.

Aside from the President, his predecessors have also committed to combating climate change. So have world leaders. But as Foreign Affairs pointed out in an article published in October last year, decarbonization — the central goal of climate policies — has remained unchanged despite international agreements over the last three decades. It cited three reasons why: lack of incentive to decarbonize, inadequate investment in low-carbon technologies, and the expectation that other countries will act first.

In 2009, the Philippines passed Republic Act No. 9729, or the Climate Change Act, which requires local government units (LGUs) to develop their own local climate change action plan (LCCAP). Government data show that 1,394 out of 1,700 LGUs already have LCCAPs as of 2021. This is an impressive increase from only 137 LGUs in 2015, and hopefully indicates that progress is being made on the local front.

On the national level, however, the government must address the issue of reliance on fossil fuels to generate power and machinery for the transportation and manufacturing industries. World Bank has noted that while the country is a minor contributor to greenhouse gas emissions, it ranks in the top 25 percent among low- and middle-income countries; emissions from the energy sector are projected to quadruple by 2030, making it even more unlikely for the Philippines to meet its commitment to reduce greenhouse gas emissions by 75 percent by then.

The President vowed that his administration’s climate initiatives will be “smarter, more responsible, more sustainable.” He can start by seeing to it that existing environment-related laws — on forestation, mining, waste management, clean water, clean air, wildlife conservation, etc. — are properly implemented to help the country do its part for the planet. Because if there is one catastrophe that must be avoided, it is a climate policy failure.

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  • Solar Eclipse 2024

What the World Has Learned From Past Eclipses

C louds scudded over the small volcanic island of Principe, off the western coast of Africa, on the afternoon of May 29, 1919. Arthur Eddington, director of the Cambridge Observatory in the U.K., waited for the Sun to emerge. The remains of a morning thunderstorm could ruin everything.

The island was about to experience the rare and overwhelming sight of a total solar eclipse. For six minutes, the longest eclipse since 1416, the Moon would completely block the face of the Sun, pulling a curtain of darkness over a thin stripe of Earth. Eddington traveled into the eclipse path to try and prove one of the most consequential ideas of his age: Albert Einstein’s new theory of general relativity.

Eddington, a physicist, was one of the few people at the time who understood the theory, which Einstein proposed in 1915. But many other scientists were stymied by the bizarre idea that gravity is not a mutual attraction, but a warping of spacetime. Light itself would be subject to this warping, too. So an eclipse would be the best way to prove whether the theory was true, because with the Sun’s light blocked by the Moon, astronomers would be able to see whether the Sun’s gravity bent the light of distant stars behind it.

Two teams of astronomers boarded ships steaming from Liverpool, England, in March 1919 to watch the eclipse and take the measure of the stars. Eddington and his team went to Principe, and another team led by Frank Dyson of the Greenwich Observatory went to Sobral, Brazil.

Totality, the complete obscuration of the Sun, would be at 2:13 local time in Principe. Moments before the Moon slid in front of the Sun, the clouds finally began breaking up. For a moment, it was totally clear. Eddington and his group hastily captured images of a star cluster found near the Sun that day, called the Hyades, found in the constellation of Taurus. The astronomers were using the best astronomical technology of the time, photographic plates, which are large exposures taken on glass instead of film. Stars appeared on seven of the plates, and solar “prominences,” filaments of gas streaming from the Sun, appeared on others.

Eddington wanted to stay in Principe to measure the Hyades when there was no eclipse, but a ship workers’ strike made him leave early. Later, Eddington and Dyson both compared the glass plates taken during the eclipse to other glass plates captured of the Hyades in a different part of the sky, when there was no eclipse. On the images from Eddington’s and Dyson’s expeditions, the stars were not aligned. The 40-year-old Einstein was right.

“Lights All Askew In the Heavens,” the New York Times proclaimed when the scientific papers were published. The eclipse was the key to the discovery—as so many solar eclipses before and since have illuminated new findings about our universe.

Telescope used to observe a total solar eclipse, Sobral, Brazil, 1919.

To understand why Eddington and Dyson traveled such distances to watch the eclipse, we need to talk about gravity.

Since at least the days of Isaac Newton, who wrote in 1687, scientists thought gravity was a simple force of mutual attraction. Newton proposed that every object in the universe attracts every other object in the universe, and that the strength of this attraction is related to the size of the objects and the distances among them. This is mostly true, actually, but it’s a little more nuanced than that.

On much larger scales, like among black holes or galaxy clusters, Newtonian gravity falls short. It also can’t accurately account for the movement of large objects that are close together, such as how the orbit of Mercury is affected by its proximity the Sun.

Albert Einstein’s most consequential breakthrough solved these problems. General relativity holds that gravity is not really an invisible force of mutual attraction, but a distortion. Rather than some kind of mutual tug-of-war, large objects like the Sun and other stars respond relative to each other because the space they are in has been altered. Their mass is so great that they bend the fabric of space and time around themselves.

Read More: 10 Surprising Facts About the 2024 Solar Eclipse

This was a weird concept, and many scientists thought Einstein’s ideas and equations were ridiculous. But others thought it sounded reasonable. Einstein and others knew that if the theory was correct, and the fabric of reality is bending around large objects, then light itself would have to follow that bend. The light of a star in the great distance, for instance, would seem to curve around a large object in front of it, nearer to us—like our Sun. But normally, it’s impossible to study stars behind the Sun to measure this effect. Enter an eclipse.

Einstein’s theory gives an equation for how much the Sun’s gravity would displace the images of background stars. Newton’s theory predicts only half that amount of displacement.

Eddington and Dyson measured the Hyades cluster because it contains many stars; the more stars to distort, the better the comparison. Both teams of scientists encountered strange political and natural obstacles in making the discovery, which are chronicled beautifully in the book No Shadow of a Doubt: The 1919 Eclipse That Confirmed Einstein's Theory of Relativity , by the physicist Daniel Kennefick. But the confirmation of Einstein’s ideas was worth it. Eddington said as much in a letter to his mother: “The one good plate that I measured gave a result agreeing with Einstein,” he wrote , “and I think I have got a little confirmation from a second plate.”

The Eddington-Dyson experiments were hardly the first time scientists used eclipses to make profound new discoveries. The idea dates to the beginnings of human civilization.

Careful records of lunar and solar eclipses are one of the greatest legacies of ancient Babylon. Astronomers—or astrologers, really, but the goal was the same—were able to predict both lunar and solar eclipses with impressive accuracy. They worked out what we now call the Saros Cycle, a repeating period of 18 years, 11 days, and 8 hours in which eclipses appear to repeat. One Saros cycle is equal to 223 synodic months, which is the time it takes the Moon to return to the same phase as seen from Earth. They also figured out, though may not have understood it completely, the geometry that enables eclipses to happen.

The path we trace around the Sun is called the ecliptic. Our planet’s axis is tilted with respect to the ecliptic plane, which is why we have seasons, and why the other celestial bodies seem to cross the same general path in our sky.

As the Moon goes around Earth, it, too, crosses the plane of the ecliptic twice in a year. The ascending node is where the Moon moves into the northern ecliptic. The descending node is where the Moon enters the southern ecliptic. When the Moon crosses a node, a total solar eclipse can happen. Ancient astronomers were aware of these points in the sky, and by the apex of Babylonian civilization, they were very good at predicting when eclipses would occur.

Two and a half millennia later, in 2016, astronomers used these same ancient records to measure the change in the rate at which Earth’s rotation is slowing—which is to say, the amount by which are days are lengthening, over thousands of years.

By the middle of the 19 th century, scientific discoveries came at a frenetic pace, and eclipses powered many of them. In October 1868, two astronomers, Pierre Jules César Janssen and Joseph Norman Lockyer, separately measured the colors of sunlight during a total eclipse. Each found evidence of an unknown element, indicating a new discovery: Helium, named for the Greek god of the Sun. In another eclipse in 1869, astronomers found convincing evidence of another new element, which they nicknamed coronium—before learning a few decades later that it was not a new element, but highly ionized iron, indicating that the Sun’s atmosphere is exceptionally, bizarrely hot. This oddity led to the prediction, in the 1950s, of a continual outflow that we now call the solar wind.

And during solar eclipses between 1878 and 1908, astronomers searched in vain for a proposed extra planet within the orbit of Mercury. Provisionally named Vulcan, this planet was thought to exist because Newtonian gravity could not fully describe Mercury’s strange orbit. The matter of the innermost planet’s path was settled, finally, in 1915, when Einstein used general relativity equations to explain it.

Many eclipse expeditions were intended to learn something new, or to prove an idea right—or wrong. But many of these discoveries have major practical effects on us. Understanding the Sun, and why its atmosphere gets so hot, can help us predict solar outbursts that could disrupt the power grid and communications satellites. Understanding gravity, at all scales, allows us to know and to navigate the cosmos.

GPS satellites, for instance, provide accurate measurements down to inches on Earth. Relativity equations account for the effects of the Earth’s gravity and the distances between the satellites and their receivers on the ground. Special relativity holds that the clocks on satellites, which experience weaker gravity, seem to run slower than clocks under the stronger force of gravity on Earth. From the point of view of the satellite, Earth clocks seem to run faster. We can use different satellites in different positions, and different ground stations, to accurately triangulate our positions on Earth down to inches. Without those calculations, GPS satellites would be far less precise.

This year, scientists fanned out across North America and in the skies above it will continue the legacy of eclipse science. Scientists from NASA and several universities and other research institutions will study Earth’s atmosphere; the Sun’s atmosphere; the Sun’s magnetic fields; and the Sun’s atmospheric outbursts, called coronal mass ejections.

When you look up at the Sun and Moon on the eclipse , the Moon’s day — or just observe its shadow darkening the ground beneath the clouds, which seems more likely — think about all the discoveries still yet waiting to happen, just behind the shadow of the Moon.

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The Evening

O.j. simpson died at 76.

Also, the U.S. is preparing for Iran to retaliate soon. Here’s the latest at the end of Thursday.

O.J. Simpson, in profile, in court wearing a suit and tie.

By Matthew Cullen

O.J. Simpson lived a life that made him one of the most famous people in America. He was a Heisman Trophy winner and a star for the Buffalo Bills, and he made fortunes as a Hollywood actor and a commercial pitchman — he was the first Black star of a national television advertising campaign. Then, in 1994, he was charged in the double murder of his former wife, Nicole Brown Simpson, and her friend, Ronald Goldman.

Simpson, who was 76, died yesterday at his home in Las Vegas. The cause was cancer, according to his family. You can read his full obituary here .

Simpson’s 1995 murder trial held up a cracked mirror to Black and white America and mesmerized the nation, which followed along on daily national television broadcasts . The jury acquitted him, but questions about his guilt or innocence never went away.

He was found liable for the deaths in a 1997 civil trial and was ordered to pay $33.5 million, although he paid little of the debt and struggled to stay out of trouble. He sold a book manuscript giving a “hypothetical” account of the murders, but after a public outcry, Ronald Goldman’s family secured the book rights.

In 2007 he was arrested after invading a Las Vegas hotel room and taking a trove of sports collectibles. Simpson was found guilty of armed robbery and kidnapping; he served nine years in prison and was released in 2017.

Look back: Here was The Times’s front-page story on the day Simpson was acquitted.

The U.S. is preparing for Iran to retaliate soon

The top U.S. military commander for the Middle East arrived in Israel today to coordinate with the Israeli military ahead of an expected attack by Iran .

Despite recent friction, President Biden said U.S. support for Israel was “ironclad,” and he warned that Iran was threatening a “significant” attack. Over the last 10 days, Iran’s leaders have repeatedly vowed to punish Israel for a strike that killed several senior Iranian commanders in Syria.

In other news from the region, Samantha Power, the head of U.S.A.I.D., told U.S. lawmakers that a famine was underway in northern Gaza.

Prosecutors said Ohtani’s interpreter stole $16 million

Federal prosecutors in California today charged Ippei Mizuhara, the former interpreter for the baseball superstar Shohei Ohtani, with bank fraud. The authorities accused Mizuhara of orchestrating a sprawling scheme over years to steal $16 million of Ohtani’s money to feed a gambling addiction .

The prosecutors said that the money had been taken from an account where Ohtani’s baseball salary was paid, and that there was no evidence that Ohtani had authorized the withdrawals. The authorities added that there was no indication that Mizuhara had bet on baseball.

The global stockpile of cholera vaccine has run dry

Seventeen countries have recently seen cholera outbreaks, driven by climate change and conflict. Doses of cholera vaccine are being given to patients as fast as they are produced, and the global stockpile has run completely dry .

The only company that currently makes the vaccine has been working at a pace that experts describe as “heroic” to expand production. And three new vaccine makers are setting up production lines. Yet the supply this year will be, at best, a quarter of what is needed.

In other vaccine news, a new shot appears to offer strong protection against dengue fever but isn’t being made fast enough to stop a huge outbreak sweeping Latin America.

More top news

Diplomacy: President Biden wants a first-ever joint summit today with the leaders of Japan and the Philippines to project unity against China’s regional aggression.

Law: Georgia’s lieutenant governor will be investigated for his role as a fake elector for Donald Trump in the 2020 election.

Russia: Aleksei Navalny’s memoir , written during the years leading up to his death in a Russian prison in February, will be published in October.

Guns: The Biden administration approved the broadest expansion of background checks in decades in an attempt to regulate a fast-growing shadow market of weapons .

Education: Harvard became the latest university to end its test-optional application policy .

2024: We asked voters to describe the election in one word. Here’s what they told us.

Economy: Soft landing or no soft landing? With the rapid expansion of the economy and persistent inflation, “no landing” is a possibility .

Boeing: An audit found that a key supplier had used a hotel key card and dish soap in the manufacturing process. The supplier called the approach “innovative,” and Boeing signed off on it.

Health: The C.D.C. is investigating whether illnesses in several states came from counterfeit Botox .

Business: Costco started selling gold bars in October. It now may be selling up to $200 million worth of gold and silver a month.

Rescue: The Coast Guard found three lost sailors on an uninhabited island in Micronesia after they spelled “HELP” in palm leaves on the beach .

TIME TO UNWIND

A civil war film set in a near-future america.

Kirsten Dunst stars as a war photographer in a version of the U.S. where Texas and California have combined forces to fight a bloody and devastating war against what remains of the federal government. That’s the premise of Alex Garland’s new film, “Civil War,” which arrives in theaters tomorrow. Our critic called it “mesmerizingly, horribly gripping.”

Garland said the film was made to warn against the dangers of extreme partisanship. We spoke with him about what inspired the story .

Look out for more wedding dresses with dropped waists

One of the hottest trends from this month’s New York Bridal Fashion Week was the dropped waist — dresses that lower their seam line to the hips (as pictured above). “Expect this style to stay around for a while,” one bridal shop owner said.

Other nontraditional looks were also embraced on the runways, including mixed fabrics, bra-like necklines and basque waists that are a bit Marie Antoinette. Check out the highlights of the week .

For more, here are a few accessories to add a pop of personality to your wedding day look.

Dinner table topics

Resonant spaces: Where are New York’s best acoustics? We took a listening tour .

Celebrities aren’t like us: Trainers gave a thumbs down to Lenny Kravitz’s outlandish workout video .

A bright spot: Commercial Off Broadway, a long-dormant sector of the theater economy, is having a banner season .

Lost tapes: For decades, recordings from major artists have languished in storage rooms and basements. Two guys work to find them .

WHAT TO DO TONIGHT

Cook: This one-pan creamy artichokes and peas stew is a celebration of spring.

Watch: The remake of “Don’t Tell Mom the Babysitter’s Dead” will have you laughing .

Read: Check out three new psychological thrillers .

Don’t worry: My colleague explained how she got by without knowing how to cook .

Exercise: VO2 max has become the gold standard for tracking fitness .

Chill: Experts say perfectionism is a trap. Here’s how to escape .

Hunt: Which Chicago apartment would you pick with a $500,000 budget ?

Play: Here are today’s Spelling Bee , Wordle and Mini Crossword . Find all of our games here .

ONE LAST THING

The joys and challenges of caring for an octopus.

Cal Clifford wanted an octopus since he was 3 years old. Every year, he would ask for one; and every year his parents would get him octopus toys, clothes or a trip to the aquarium. Then last year, on Cal’s ninth birthday, he finally was given a real pet octopus. He named it Terrance .

Cal and his family quickly came to adore the octopus, who turned out to be quite social, but what they didn't know was that Terrance was a female. She laid 50 eggs, forcing the family to scramble to keep the hatchlings alive and to find them homes.

Have a supportive evening.

Thanks for reading. I’ll be back tomorrow. — Matthew

We welcome your feedback. Write to us at [email protected] .

IMAGES

  1. Climate Justice

    climate change in the philippines essay

  2. Philippines country most at risk from climate crisis

    climate change in the philippines essay

  3. Climate Risk Profile: Philippines

    climate change in the philippines essay

  4. Progress Toward Climate Resilience in the Philippines

    climate change in the philippines essay

  5. This map shows why the Philippines is so vulnerable to climate change

    climate change in the philippines essay

  6. Philippines Country Climate and Development Report

    climate change in the philippines essay

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  1. SCIENCE PT- /CLIMATE CHANGE PHILIPPINES/

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  1. Climate Change In The Philippines Essay

    Climate Change In The Philippines Essay. 767 Words4 Pages. "Climate change is the single biggest thing humans have ever done on this planet. The only thing that needs to be bigger is our movement to stop it"─ Bill McKibben, 2013. The Climate Change phenomenon is a problem that the world has been concerned about due to its global adverse ...

  2. Climate Change in the Philippines

    Climate change is happening now. Evidences being seen support the fact that the change cannot simply be explained by natural variation. The most recent scientific assessments have confirmed that this warming of the climate system since the mid-20th century is most likely to be due to human activities; and thus, is due to the observed increase in greenhouse gas concentrations from human ...

  3. How Is Climate Change Affecting the Philippines?

    Here's a deeper look at how climate change affects the Philippines and the role geography and development play in making a tremendous challenge even greater. Geography. The Global Climate Risk Index 2015 listed the Philippines as the number one most affected country by climate change, using 2013's data. This is thanks, in part, to its geography.

  4. The Philippines: Leading the Way In the Climate Fight

    The Philippines is one of the world's most vulnerable countries to climate disasters. With more than 7,100 islands and an estimated 36,298 kilometers of coastline, more than 60 percent of the Filipino population resides within the coastal zone and are acutely impacted by climate change.Dangers include food and fresh water scarcity, damage to infrastructure and devastating sea-level rise.

  5. Philippines Country Climate and Development Report

    The CCDR shows that climate change poses major risks to development in the Philippines but that the country has many options to address them. If nothing is done, climate change will impose substantial economic and human costs, reducing GDP by as much as 13.6 percent of GDP by 2040, with the poorest households most affected.

  6. Getting a Grip on Climate Change in the Philippines

    The report entitled Getting a Grip on Climate Change in the Philippines looks at the innovations as well as gaps in policy and financing of climate change programs since the country adopted the Climate Change Act four years ago.. The report - done at the request of, and in close collaboration with the Climate Change Commission (CCC) and the Department of Budget and Management (DBM ...

  7. Climate change in the Philippines

    Climate change and global warming and the rising amounts of CO 2 in the atmosphere have contributed to ocean warming and ocean acidification.The ocean has acted as a carbon sink for earth for millennia and is currently slowing the rate of global warming through the sequestration of carbon.This comes at a cost however as the oceans are becoming more and more acidic as they sequester more carbon ...

  8. Stronger Climate Action Will Support Sustainable Recovery and

    MANILA, November 09, 2022 - Climate change is exacting a heavy toll on Filipinos' lives, properties, and livelihoods, and left unaddressed, could hamper the country's ambition of becoming an upper middle-income country by 2040. However, the Philippines has many of the tools and instruments required to reduce damages substantially, according to the World Bank Group's Country Climate and ...

  9. Climate Change in the Philippines: A Contribution to the Country

    This study explores experiential knowledge of climate change held by planning officers from the coastal landscape of the island province of Bohol, Philippines and shows how planners engage with climate change adaptation by combining national, techno-scientific and local, on-the-ground ways of knowing. Expand

  10. PDF The Philippines National Statement for The Cop 26 Meeting

    Carlos G. Dominguez Secretary of Finance Chairman-Designate, Climate Change Commission November 9, 2021. The Philippines is determined to be a world leader in this fight against climate change. We account only for three-tenths of one percent of total greenhouse gas emissions. Yet, we bear the brunt of the consequences of climate change.

  11. PDF Climate Change in the Philippines

    The general circulation models (GCM) used in the Philippines' Initial National Communication on Climate Change (PINCCC,1999) predict an average increase of 2 to 3°C in annual temperature in the country should a doubling of CO2 in the atmosphere occur (Table 6; Annex 2).

  12. Scoping Review of Climate Change and Health Research in the Philippines

    1. Introduction. The Philippines is one of the most vulnerable nations where one can observe and project the impacts of climate change [].Climate change-induced temperature increases and rainfall variability are considered most likely to have the greatest impacts on the country [].The frequency and intensity of tropical cyclones originating in the Pacific are also increasing [], albeit not ...

  13. Global Warming: Frontline Philippines

    Among the most vulnerable countries to global warming is the Philippines: it is a frontliner in the seemingly global rush to extinction. Not only is it in the path of typhoons; it also sits on the Pacific "ring of fire" that powers earthquakes and volcanic eruptions. The deaths, the injuries, and the billions in property losses and ...

  14. Everything you need to know about climate change in the Philippines

    According to a report issued in 2019 by the Institute for Economics and Peace, the Philippines is the country most vulnerable to climate change.. Between 1958 and 2014, the Philippines experienced a 0.62 °C increase in yearly average mean temperature, with the rate of change increasing over time. Climate change has resulted in an increase in the amount and intensity of rainfall, with more ...

  15. Climate change and the common Filipino

    One 2019 study from Stanford University found that from 1961 to 2010, the per-person wealth in the world's poorest countries decreased by as much as 30 percent due to global warming. In a country like the Philippines, it's easy to see how the dramatic change in climate has pushed individuals and communities toward economic distress.

  16. Smarter solutions for hotter times: what the Philippines can do

    The Philippines was the country fifth-most affected by extreme weather events over the past two decades (1997-2016),1 and recent work2,3 has suggested that Mindanao—the southern group of islands in the Philippines—could experience year-long heatwaves by 2050 under the worst case scenario. Publication of the study2 came in June, 2017, when fierce heatwaves struck broad areas of western ...

  17. [OPINION] Global warming, climate change, and implications ...

    The average American is the worst climate change offender, using almost two barrels of oil and more than 12 megawatt-hours of electricity a year. Average Filipinos, far more frugal, use only a ...

  18. Climate Change Impacts on Philippine Communities: An Overview of the

    This review acknowledges climate change is a global phenomenon and one which affects all regions and sub-regions differently, however, it is outside the capacity of this paper to review the global impacts of climate change, the scope of this paper is limited to South-East Asia, most particularly to the Philippines.

  19. Climate change and mental health in the Philippines

    Climate change in the Philippines. The Philippines is one of the world's most climate-vulnerable countries. 2 It is confronted with at least 20 typhoons every year, which lead to the destruction of houses and livelihoods, displacement of thousands and hundreds of deaths. 3 It also experiences extreme droughts and rising sea levels. 2,3 These not only lead to the forced displacement of ...

  20. [OPINION] 'Filipino time' and acting on the climate crisis

    It may be a new year, but the same problems remain for climate action. It is baffling that the Philippines, one of the most vulnerable nations to the climate crisis, has yet to submit its first ...

  21. EDITORIAL

    Scientists have said the Philippines is one of the countries most vulnerable to climate change. Coastal communities, many of which are dependent on fishing, are threatened by rising ocean ...

  22. Interview with Ian Goldin: fragile utopia—the cities of our future

    After energy, it is the biggest cause of climate change. Synthetic fertilizers are responsible for 2% of global emissions. Climate change will impact where and how food can be grown, taking us back to a 1940s situation where there are fears of resource wars and mass migration.

  23. Climate agenda

    Aside from stronger typhoons, climate change is expected to bring higher sea levels and storm surges, the main cause of deaths for thousands during Supertyphoon Yolanda in 2013. ... In 2009, the Philippines passed Republic Act No. 9729, or the Climate Change Act, which requires local government units (LGUs) to develop their own local climate ...

  24. 9 in 10 Filipinos felt climate impacts in past three years

    AFP/Jam Sta. Rosa. MANILA, Philippines ( Updated 3:53 p.m.) — Nine in 10 Filipinos have experienced the impacts of climate change, which are expected to worsen due to continued increase in ...

  25. Homeowners face a $25trn bill from climate change

    Climate change is making such incidents much more common. In the decade from 2000 to 2009 only three thunderstorms cost the industry more than $1bn at current prices. From 2010 to 2019 there were ten.

  26. What the World Has Learned From Past Eclipses

    In October 1868, two astronomers, Pierre Jules César Janssen and Joseph Norman Lockyer, separately measured the colors of sunlight during a total eclipse. Each found evidence of an unknown ...

  27. O.J. Simpson Died at 76

    Then, in 1994, he was charged in the double murder of his former wife, Nicole Brown Simpson, and her friend, Ronald Goldman. Simpson, who was 76, died yesterday at his home in Las Vegas. The cause ...