Kiera Jefferson
Coal is a major contributor to pollution and has a range of environmental and health impacts. Coal mining and combustion release harmful pollutants into the air, water, and land, including mercury, lead, sulfur dioxide, nitrogen oxides, particulates, and other heavy metals. These pollutants have been linked to respiratory illnesses, heart and lung disease, cancer, and neurological problems. In 2021, methane emissions from coal mines accounted for about 7% of total US methane emissions and about 1% of total US greenhouse gas emissions. Coal-fired power plants are a significant source of air pollution, and coal is the most polluting way to produce electricity. The burning of coal releases carbon dioxide, a heat-trapping gas that contributes to global warming and climate change. In the US, coal accounts for a significant portion of energy-related carbon emissions and coal-related deaths. The transition away from coal is essential to mitigate its worst impacts, and efforts are being made to reduce emissions and develop clean energy alternatives.
| Characteristics | Values |
|---|---|
| CO2 emissions from burning coal in the US in 2022 | 19% of total energy-related emissions |
| CO2 emissions from burning coal in the US in 2022 | 55% of emissions from the electric power sector |
| Coal-related deaths in the US per year | 50,000 |
| Coal-related deaths in India per year | 169,000 |
| Coal-related deaths in China in 2013 | 366,000 |
| Coal-related health costs in Australia per year | $2.4 billion |
| US mercury emissions from coal plants | 42% |
| US coal methane emissions in 2021 | 10% of total US methane emissions |
| US coal methane emissions in 2021 | 1% of total US greenhouse gas emissions |
| US coal power fleet emissions in 2014 | 41.2 tons of lead |
| US coal power fleet emissions in 2014 | 9,332 pounds of cadmium |
| US coal power fleet emissions in 2024 | 576,185 tons of carbon monoxide |
| US coal power fleet emissions in 2014 | 22,124 tons of volatile organic compounds |
| US coal power fleet emissions in 2014 | 77,108 pounds of arsenic |
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What You'll Learn
Coal is the most polluting way to produce electricity
Coal is a fossil fuel that is mostly composed of carbon. When coal is burned, it releases carbon dioxide (CO2), a heat-trapping gas that is the main driver of global warming. CO2 emissions from coal-fired power plants account for a significant portion of total CO2 emissions, with coal being the most carbon-intensive fossil fuel per unit of energy. In the United States, coal-fired power plants emitted nearly two billion tons of CO2 in 2022, accounting for about 19% of total energy-related CO2 emissions and 55% of CO2 emissions from the electric power sector.
In addition to CO2, coal-fired power plants release other harmful pollutants such as sulfur dioxide, nitrogen oxides, particulates, mercury, lead, arsenic, and other heavy metals. These pollutants have severe impacts on human health, including respiratory illnesses, heart and lung disease, neurological problems, and cancer. The toxic air pollution from coal-fired power plants is estimated to cause tens of thousands of deaths each year in the United States alone.
Coal mining and extraction processes also contribute significantly to pollution. Mountaintop removal mining, for example, alters the landscape and can contaminate waterways and drinking water supplies. Coal mining releases methane (CH4), a potent greenhouse gas that is released during mining activities and contributes to global warming. Coal ash, a byproduct of coal combustion, can also contaminate water sources if not properly disposed of.
The transition away from coal towards cleaner sources of electricity is essential to mitigate the worst impacts of coal on the environment and human health. While efforts have been made to reduce emissions and capture pollutants, coal remains the most polluting way to produce electricity, and its continued use poses a serious threat to global climate change and public health.
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Coal mining techniques damage the landscape
Coal is the most polluting way to produce electricity. When burned in power stations, it releases massive amounts of pollution, damaging our health and contributing to climate change. It emits toxic and carcinogenic substances into the air, water, and land, severely affecting the health of miners, workers, and surrounding communities.
Coal mining techniques also damage the landscape. Surface mining, for example, is a method of coal mining in which huge machines remove layers of soil and rock to expose underground coal deposits. Companies clear forests and strip away the earth in the process, leaving behind desolate lands incapable of supporting wildlife. Mountaintop removal is an especially destructive form of surface coal mining. Explosives are used to blast off the mountaintop, removing nearly 600 feet or more of elevation. Excess rock and soil are then dumped into large, downward-sloping runoff paths created in adjacent river valleys for disposal. These paths, called valley fills, permanently bury headwater streams, causing critical losses in wildlife habitat, clean water sources, and natural benefits such as nutrient regulation and flood control. More than 2,000 miles of headwater streams have been buried due to mountaintop removal, causing severe impacts on water quality that can persist for decades post-mining.
In addition to mountaintop removal, other coal mining techniques can also damage the landscape. Underground mines, for example, can cause the ground above mine tunnels to collapse, and acidic water can drain from abandoned mines. In some cases, the water flowing from coal mines can be highly acidic and toxic, posing a severe threat to wildlife and rendering affected waterways unusable for drinking and recreation. This is known as acid mine drainage (AMD), which occurs when water reacts with sulfur-bearing minerals in rocks. AMD is a significant water quality issue in the US, degrading approximately 12,400 miles of rivers and streams and posing health risks to ecosystems and nearby communities.
Overall, coal mining techniques can have significant negative impacts on the landscape, affecting wildlife, water sources, and the natural environment. These impacts can be long-lasting and challenging to reverse, even with restoration efforts.
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Coal ash contaminates water supplies
Coal is a major source of pollution and has been linked to hundreds of thousands of deaths worldwide. In 2013, 366,000 deaths in China were attributed to coal, while coal kills about 169,000 people annually in India. In the US, coal-related deaths stand at 50,000 each year. Coal is the most polluting way to produce electricity, releasing massive amounts of pollution and damaging our health. It emits toxic and carcinogenic substances into our air, water, and land, severely affecting the health of miners, workers, and surrounding communities.
Coal ash is what is left behind when power plants burn coal for energy. It is a toxic mix of carcinogens, neurotoxins, and other hazardous pollutants. In the US, coal ash is generally stored near power plants or placed in landfills. However, coal ash storage and landfills can leach pollution into the ground, contaminating groundwater.
Coal ash impoundment ruptures can also damage the environment downstream of the impoundment. In the US, nearly 90% of the 292 power plants that have reported groundwater data are leaking contaminants into groundwater, threatening drinking water for millions. Contamination may go undetected in private wells for years, as coal ash pollutants have no telltale taste or colour. The most widespread known drinking water contamination occurred in the Town of Pines, Indiana, from a leaking landfill and coal ash used as "fill" throughout the town. As a result, the EPA declared the Town of Pines a Superfund site in 2001, and the utility company responsible eventually provided municipal water to most residents and removed coal ash and contaminated soil from the town.
Despite rules requiring remediation, only a few of the nearly 300 US power plants storing toxic ash have started cleanups or have plans to do so. Many sites are polluting groundwater, and of these contaminated plants, nearly half have either not committed to a cleanup plan or have denied culpability in the contamination.
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Coal releases airborne toxins and pollutants
Coal releases a variety of airborne toxins and pollutants, which have a range of negative impacts on the environment and human health. The combustion of fossil fuels, including coal, releases carbon dioxide (CO2), which is the primary driver of global warming. CO2 is a heat-trapping gas that warms the Earth's atmosphere, leading to consequences such as rising temperatures, accelerating sea levels, drought, heat waves, heavy rainfall, intensified storms, and species loss. In 2022, CO2 emissions from burning coal for energy in the United States accounted for about 19% of total energy-related CO2 emissions and 55% of total CO2 emissions from the electric power sector.
Coal-fired power plants emit toxic heavy metals such as mercury, which can contaminate nearby water sources and pose serious health risks to humans and wildlife. Mercury can damage the nervous, digestive, and immune systems and impair child development. Other harmful pollutants emitted by coal power plants include lead, cadmium, arsenic, and volatile organic compounds (VOCs) that form ozone. These pollutants have been linked to various health issues, including cancer, cardiovascular diseases, and respiratory illnesses.
Coal mining and extraction processes also contribute to air pollution. Mountaintop removal and valley fill mining, for example, involve removing the tops of mountains with explosives, altering the landscape and releasing pollutants that can harm aquatic ecosystems downstream. Methane gas, which is often present in coal deposits, must be vented out of mines to prevent explosions. However, methane emissions from coal mines contribute to greenhouse gas emissions and global warming.
The health impacts of coal pollution are significant. In China, 366,000 deaths were attributed to coal in 2013, while coal-related deaths in India and the United States reach approximately 169,000 and 50,000 annually, respectively. Coal pollution has been linked to increased rates of childhood asthma, heart and lung disease, and cancer. Additionally, coal dust diseases, such as the life-threatening "black lung", have re-emerged in recent years, affecting coal workers.
To mitigate the release of airborne toxins and pollutants from coal, various measures have been implemented. Carbon capture and storage technologies (CCS) are being developed to capture and store CO2 emissions from coal plants. Pollution control devices and scrubbers are used to capture fly ash emissions and reduce sulfur dioxide, nitrogen oxides, and particulate matter. While these technologies help reduce coal's environmental and health impacts, transitioning to cleaner energy sources, such as wind and solar power, is crucial to addressing the serious health and climate threats posed by coal pollution.
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Coal is linked to health problems such as asthma, heart disease and cancer
Coal is a major source of pollution and has been linked to a variety of health problems, including asthma, heart disease, and cancer.
Coal-fired power plants release air pollutants such as sulfur dioxide, nitrogen oxides, and fine particles (PM2.5). These pollutants have been associated with increased asthma symptoms, hospitalizations, and even deaths. Research has shown that reductions in sulfur dioxide emissions from coal-fired power plants lead to improvements in asthma-related health outcomes, with fewer hospitalizations and emergency department visits.
The particles released from coal-burning power plants have been found to contribute significantly to heart disease mortality risk. According to a study published in the journal Environmental Health Perspectives, coal-burning particles were linked to a higher risk of heart disease compared to average air pollution particles. The study also emphasized the need for stronger regulations to reduce coal emissions and protect public health.
Additionally, the reliance on coal-fired power plants has been associated with lung cancer incidence. Lead author Cheng-Kuan Lin highlighted that the findings could help policymakers understand the preventable burden of lung cancer attributed to coal-fired power plants.
Other health concerns related to coal pollution include respiratory illnesses, smog, haze, and lung disease. The release of mercury and other heavy metals from coal burning can also lead to neurological and developmental damage in humans.
Overall, the burning of coal for energy has significant health implications, contributing to asthma, heart disease, cancer, and other serious health conditions. Reducing coal emissions is crucial to mitigate these health risks and improve public health outcomes.
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Frequently asked questions
Coal is a major contributor to pollution, but attributing a precise amount is difficult. Coal is the most polluting way to produce electricity. In 2022, coal accounted for about 19% of total US energy-related CO2 emissions and about 55% of total CO2 emissions from the electric power sector. Coal mining and burning release harmful pollutants, including carbon dioxide, methane, nitrogen oxides, sulfur dioxide, and heavy metals like mercury, which have severe environmental and health impacts.
Coal pollution contributes to global warming, climate change, and air, water, and land pollution. Coal-fired power plants release toxic airborne pollutants, contaminating the air we breathe. Coal ash and mining waste can leach into the ground and contaminate water sources, affecting aquatic life and drinking water supplies. Coal mining can also alter landscapes and streams, impacting local ecosystems.
Coal pollution has severe health consequences, including respiratory illnesses, asthma, heart and lung disease, neurological problems, and cancer. Mercury emissions from coal plants can damage the nervous, digestive, and immune systems and pose risks to child development. Air pollution from coal-fired power stations contributes to leading causes of mortality, including heart disease, cancer, stroke, and respiratory diseases.
Yes, transitioning to cleaner sources of electricity, such as wind, solar, and other renewable energy technologies, can significantly reduce pollution. Carbon capture and storage technologies (CCS) are also being developed to capture and store carbon dioxide, preventing its release into the atmosphere. Additionally, reusing and recycling waste from coal burning can help reduce environmental impacts.
Efforts are being made to reduce coal pollution through the implementation of pollution controls and enforcement of emissions limits by organizations like the US Environmental Protection Agency (EPA). Coal-burning utilities have installed equipment to reduce pollutants such as sulfur dioxide and nitrogen oxides. Research and incentives are being provided to promote the development and adoption of clean energy technologies and reduce the environmental and health impacts of coal.
