Explain the problems related to use of fossil fuels
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Fossil fuels take a toll on the environment. They cause obvious problems such as oil spills and smog filled air. They also cause other, more complicated problems that are not so easy to see. Acid rain, for example, caused partially by sulfur in fossil fuels, damages buildings and harms trees, aquatic life, and insects.
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Fossil fuels emit harmful air pollutants long before they’re burned. Indeed, some 12.6 million Americans are exposed daily to toxic air pollution from active oil and gas wells and from transport and processing facilities. These include benzene (linked to childhood leukemia and blood disorders) and formaldehyde (a cancer-causing chemical). A booming fracking industry will bring that pollution to more backyards, despite mounting evidence of the practice’s serious health impacts. Mining operations are no better, especially for the miners themselves, generating toxic airborne particulate matter. Strip mining—particularly in places such as Canada’s boreal forest—can release giant carbon stores held naturally in the wild.
Burning Fossil Fuels
Global warming pollution
When we burn oil, coal, and gas, we don’t just meet our energy needs—we drive the current global warming crisis as well. Fossil fuels produce large quantities of carbon dioxide when burned. Carbon emissions trap heat in the atmosphere and lead to climate change. In the United States, the burning of fossil fuels, particularly for the power and transportation sectors, accounts for about three-quarters of our carbon emissions.
Other forms of air pollution
Fossil fuels emit more than just carbon dioxide when burned. Coal-fired power plants singlehandedly generate 42 percent of dangerous mercury emissions in the United States, as well as two-thirds of U.S. sulfur dioxide emissions (which contribute to acid rain) and the vast majority of soot (particulate matter) in our air. Meanwhile, fossil fuel–powered cars, trucks, and boats are the main contributors of poisonous carbon monoxide and nitrogen oxide, which produces smog (and respiratory illnesses) on hot days.
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