Coal
Coal is the most abundant fossil fuel in the United States. It is also one of the most polluting. When coal is burned, it releases harmful pollutants into the air, including carbon dioxide, sulfur dioxide, and nitrogen oxides. These pollutants can cause a variety of health problems, including respiratory problems, heart disease, and cancer.
Natural Gas
Natural gas is a cleaner-burning fossil fuel than coal. When natural gas is burned, it releases fewer harmful pollutants into the air. However, natural gas is still a fossil fuel, and it does release some pollutants, including carbon dioxide and methane.
Oil
Oil is the least commonly used fossil fuel for generating electricity. Oil is more expensive than coal and natural gas, and it is also more polluting. When oil is burned, it releases harmful pollutants into the air, including carbon dioxide, sulfur dioxide, and nitrogen oxides.
The Future of Fossil Fuels
The use of fossil fuels to generate electricity is declining. This is due to a number of factors, including the increasing cost of these fuels, the environmental impact of these fuels, and the development of renewable energy sources.
Renewable energy sources, such as solar and wind power, do not produce any emissions. They are also becoming increasingly affordable. As a result, the use of renewable energy sources is expected to grow in the future.
