Meghan Hodges
Climate change and pollution disproportionately affect the poorest people globally. While pollution is a global issue, it is particularly prevalent in industrializing developing economies. The health and economic impacts of pollution are severe, and the poorest people are often the most vulnerable to these effects. Poor air quality causes around 7 million deaths each year, and the burden of pollution-related deaths is not evenly shared. The impact of pollution is influenced by factors such as socioeconomic status, racial and ethnic background, education level, and proximity to major sources of pollution. In addition, the effects of pollution are compounded by inequitable access to affordable healthcare. As a result, the poorest people face higher exposure to pollutants and often experience more severe health consequences. Furthermore, low-income communities are often located near pollution sources, such as industrial plants and busy roads, due to lower land costs. Climate change will also drive millions more into poverty by 2030, particularly in regions like Sub-Saharan Africa and South Asia. Therefore, addressing the intersection of pollution and poverty requires holistic solutions that promote equality, protect vulnerable populations, and ensure access to basic resources and affordable healthcare.
| Characteristics | Values |
|---|---|
| People in poverty are more exposed to pollution | Globally, 7.3 billion people, or 94% of the world population, face air pollution levels considered unsafe by the WHO. |
| 90% of air pollution-related deaths occur in low- and middle-income countries, mainly in Asia and Africa. | |
| People in poverty are more likely to live near major sources of pollution, such as industrial plants and transport corridors. | |
| People in poverty are more likely to work outdoors, increasing their exposure to air pollution. | |
| People in poverty are more likely to burn fuel or wood indoors, leading to indoor air pollution. | |
| People in poverty have less access to affordable healthcare, which increases their vulnerability to the health impacts of air pollution. | |
| People in poverty are more likely to suffer from the economic impacts of air pollution, such as loss of work or school due to illness. | |
| Inequity and vulnerability | People in poverty often contribute the least to pollution but bear the brunt of its adverse effects. |
| Climate change will drive 68 million–135 million people to poverty by 2030. | |
| Solutions | Solutions must be inclusive, promote equality, protect the rights of vulnerable sections, and ensure access to basic resources. |
| Economic support is crucial for developing nations to adapt to climate change. | |
| Reducing the pollution intensity of economic growth, such as through the uptake of clean technologies. |
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What You'll Learn
The impact of air pollution on racial and ethnic groups
While poverty and pollution are closely linked, with the poorest people being the most affected by air pollution, racial and ethnic groups are also disproportionately impacted by air pollution. This is true regardless of income level, with people of colour experiencing greater than average exposures from source types causing 75% of overall exposure.
In the United States, racial and ethnic minorities and lower-income groups are exposed to higher levels of air pollution. A study published in the journal Nature in 2022 found stark disparities in air pollution exposure among racial/ethnic and income groups in America. The study linked 17 years of demographic data with data on fine particulate pollution, creating unique visualizations that highlighted the disparities in exposure.
Another study conducted by the US EPA found that exposure to air pollution was higher for people of colour, regardless of region or income. The researchers analyzed data from over 5,000 emission source types and found racial-ethnic disparities for nearly all major emission categories. White people were exposed to lower than average concentrations, while people of colour experienced greater than average exposures. The study concluded that race appears to be a significant factor for exposure in nearly all regions.
Communities of colour are often located near pollution sources, such as industrial plants, major highways, and rubbish dumps, increasing their exposure to harmful pollutants. Additionally, low-income communities of colour may have limited access to healthcare, healthy food options, and good job opportunities, further increasing their vulnerability to the health impacts of air pollution.
The health impacts of air pollution on racial and ethnic groups have been well-documented. Studies have found that African Americans and other communities of colour have a higher risk of premature death, respiratory infections, and asthma attacks due to long-term exposure to particle pollution. The EPA review of the research on the health effects of particle pollution concluded that non-white populations, especially blacks, faced a higher risk from particle pollution.
To address these disparities, regulations and policies must be designed to effectively tackle environmental injustice and reduce air pollution exposure for racial and ethnic minorities. This includes implementing strong, targeted air pollution reduction strategies and ensuring equal access to healthcare and other resources that can mitigate the health impacts of air pollution.
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The economic burden of pollution
The economic costs of pollution are also felt through the loss of ecosystems and natural resources. Pollution of all types, including air, water, and hazardous chemicals, destroys ecosystems and depletes natural resources, hindering development outcomes. The global economy relies on interconnected supply chains that are sustained by raw materials, and environmental degradation threatens the sustainability of these supply chains.
Addressing pollution at its source presents an opportunity to enhance economic growth, improve resource efficiency, and create employment opportunities. Moving towards a circular economy, where production systems are regenerative and sustainable, can help to reduce the economic burden of pollution. This includes promoting sustainable chemistry, resource efficiency, and sustainable markets in sectors such as textiles, agribusiness, and construction materials.
Additionally, the economic burden of pollution is not limited to direct costs but also includes the cost of adapting to climate change. Developing nations, for example, will need $127 billion annually by 2030 and $295 billion annually by 2050 to adapt to the impacts of climate change. This includes measures such as generating employment, improving public health, and reducing inequalities.
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Climate change and migration
Climate change is an increasingly significant factor in human migration. Environmental factors have always influenced human movement, but the current climate crisis is triggering more displacement and migration. This is happening both within and across borders, with most migration occurring internally. Climate change interacts with other factors, such as conflict, economic opportunities, and politics, to drive migration.
The impact of climate change on migration can be direct or indirect. Direct impacts include natural disasters such as floods, droughts, and storms, which are becoming more frequent and intense due to climate change. In 2022, more than 1 million Somalis were displaced by drought, primarily within Somalia. Similarly, floods in Pakistan and droughts in East Africa led to millions of displacements within these countries. Sea-level rise is another significant factor, especially for small island nations. In the Maldives, the highest proportion of coral islands sit less than one metre above sea level, and rising sea levels are already forcing residents to migrate to the capital.
The indirect impacts of climate change on migration are harder to trace but are no less significant. Slow-onset changes in the climate, such as increasing temperatures, sea-level rise, land degradation, and desertification, can make regions less habitable over time. This can lead to a decline in agricultural productivity, threatening rural livelihoods and fostering competition over resources, including water. For example, in Sub-Saharan Africa, South Asia, and Southeast Asia, farming families are disproportionately poor and vulnerable to the effects of climate change on agriculture. High crop prices due to low agricultural yields affect poor households the most.
The vulnerability of communities to the impacts of climate change and their ability to adapt play a crucial role in the likelihood of migration. Adaptation measures such as building sea walls or other defences can help mitigate the risks and reduce the need for displacement. Additionally, individuals' access to resources, including transportation, social networks, and legal pathways, influences their ability to migrate.
While migration can be a valuable adaptation strategy to reduce vulnerability to climate change, it is essential to address the root causes and inequities that exist. Climate change often disproportionately affects low-income and vulnerable communities, who are already bearing the brunt of its impacts. These communities are more likely to live near pollution sources, such as industrial plants and transport corridors, and suffer from poor air quality. They also often lack access to affordable healthcare, further increasing their vulnerability.
To move areas of pollution farther from poverty, a holistic approach is necessary. This includes considering the needs of vulnerable communities, reducing emissions and pollution sources near deprived areas, improving access to healthcare, and promoting inclusive solutions that address inequalities and protect the rights of vulnerable sections. Additionally, economic support for developing nations is crucial in adapting to climate change and reducing its impact on vulnerable populations.
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The impact of pollution on health and life expectancy
Air pollution is one of the biggest public health hazards worldwide, causing about 9 million deaths per year. It is a major driver of death and disease, and its impact on life expectancy is significant. According to a 2019 estimate, air pollution exposure reduces the average person's lifespan by 1.8 years. The impact varies across different regions and populations, with lower-resourced areas and countries suffering the most severe consequences.
Outdoor and indoor exposure to PM2.5, or fine particulate matter, accounts for almost all of air pollution's impact on life expectancy. These fine particles can invade the deepest parts of the airways and easily reach the bloodstream, leading to various health issues. The health effects of air pollution include respiratory, cardiovascular, mental, and perinatal disorders, as well as an increased risk of infant mortality and chronic disease in adulthood. Additionally, air pollution has been linked to the development of diabetes and an increased risk of morbidity and mortality.
The impact of air pollution on life expectancy is closely linked to socioeconomic factors, with the poorest and most vulnerable communities bearing the brunt of its adverse effects. This is often due to their proximity to pollution sources, such as industrial plants and busy roads, and their lack of access to affordable healthcare. In lower-income communities, indoor air pollution is also a significant concern, as burning wood, charcoal, or other materials indoors for cooking, heating, or lighting can result in poor air quality.
Furthermore, the health consequences of air pollution can lead to economic burdens for individuals and societies. Illnesses caused by air pollution result in missed work or school days and increased healthcare costs. Additionally, the impact of climate change on agricultural productivity and crop prices can disproportionately affect poor households, further exacerbating the impact on vulnerable communities.
Addressing air pollution and its impact on health and life expectancy requires a holistic approach that considers the needs of vulnerable communities. This includes implementing measures to reduce air pollution at the source, such as adopting clean technologies and improving fuel economy, as well as promoting sustainable lifestyle choices like reducing, recycling, and reusing. By tackling air pollution and its underlying causes, we can work towards improving life expectancy and creating a brighter future for the most affected communities.
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Pollution and the cost of healthcare
The adverse health effects of air pollution are well-documented, with indoor and outdoor air pollution causing an estimated 7 million deaths globally in 2016, according to the World Health Organization. The health impacts of air pollution include respiratory infections, heart disease, stroke, and cancer. These health issues result in increased healthcare costs for those affected.
The impact of air pollution is disproportionately felt by marginalized and low-income communities, who often live near pollution sources such as industrial plants and busy roads. In addition to the direct health impacts, air pollution also affects the economic well-being of these communities, as people miss work or school due to illness. This creates an additional economic burden for families and individuals, exacerbating existing inequalities.
Research has found that air pollution leads to increased healthcare costs, including inpatient and post-acute care costs and mortality rates. The Environmental Benefits Mapping and Analysis Program–Community Edition (BenMAP-CE) tool, developed by the Environmental Protection Agency, is widely used to estimate the healthcare costs associated with air pollution. However, the tool only considers the costs of hospital and emergency department admissions, and a more comprehensive assessment would include ambulatory and other care services, increasing the estimated costs by approximately 40% for respiratory and cardiovascular patients.
The financial and health impacts of air pollution are substantial, and the costs are likely underestimated. The true healthcare benefits of reducing air pollution may be greater than previously thought. Annual expenditures related to pollution-related healthcare costs range from US$630 billion (upper bound) to US$240 billion (lower bound) or approximately three to nine percent of global healthcare spending in 2013. While only 14% of global spending on pollution-related healthcare is in lower- and middle-income countries, the relative share of spending for pollution-related illnesses is significant, especially in very low-income countries.
To address the issue of pollution and the associated healthcare costs, a holistic approach that considers the needs of vulnerable communities must be adopted. Economic support and inclusive measures that reduce inequalities, generate employment, and improve public health are crucial. Additionally, access to affordable healthcare is essential to reducing the vulnerability of marginalized communities.
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Frequently asked questions
Pollution and poverty are linked by a cyclical relationship: poverty drives pollution, and pollution drives poverty. Low-income communities are often located near pollution sources like industrial plants and transport corridors due to lower land costs. Within countries, marginalized communities are often more exposed to pollution, with racial and ethnic minorities facing higher exposure to pollutants and greater health risks.
Air pollution is estimated to cause approximately 7 million deaths each year, with the majority of these occurring in low- and middle-income countries. Poor air quality increases the risk of cardiovascular and respiratory diseases, causing an economic burden as people are unable to work or attend school. The lack of access to affordable healthcare further increases the vulnerability of low-income communities.
Addressing the impact of pollution on poverty requires a holistic approach that considers people's needs at the systems level. Economic support for developing nations is crucial as they adapt to climate change. Additionally, reducing pollution intensity in economic growth, improving air quality regulations, and providing access to cleaner fuels and technologies can help mitigate the effects of pollution on marginalized communities.
