GEOLOGY

Detailed explanation-1: -When fossil fuels are burned, they release large amounts of carbon dioxide, a greenhouse gas, into the air. Greenhouse gases trap heat in our atmosphere, causing global warming. Already the average global temperature has increased by 1C.

Detailed explanation-2: -Burning of Fossil Fuels and Forests When hydrocarbon fuels (i.e. wood, coal, natural gas, gasoline, and oil) are burned, carbon dioxide is released. During combustion or burning, carbon from fossil fuels combine with oxygen in the air to form carbon dioxide and water vapor.

Detailed explanation-3: -Carbon dioxide (CO2): Carbon dioxide enters the atmosphere through burning fossil fuels (coal, natural gas, and oil), solid waste, trees and other biological materials, and also as a result of certain chemical reactions (e.g., manufacture of cement).

Detailed explanation-4: -Over 40% of energy-related carbon dioxide (CO2) emissions are due to the burning of fossil fuels for electricity generation.

Detailed explanation-5: -Coal generates the most CO2 emissions of any fossil fuel and yet remains the world’s dominant energy source.