A fossil fuel is a hydrocarbon-containing material formed naturally in the earth's crust from the remains of dead plants and animals. Fossil fuel is extracted and burned as a fuel. Coal, oil, and natural gas are examples of fossil fuels. In present eera, almost all countries get theri total energy from oil, coal, and natural gas, all of which are fossil fuels. We depend on those fuels to heat our homes, run our vehicles, power industry and manufacturing, and provide us with electricity. So fossil fuels has made our lives comfortable but it also brings a lot of negative consequences to the world. When fossil fuels are burned, they release large amounts of carbon dioxide, a greenhouse gas, into the air. Greenhouse gases trap heat in atmosphere, causing global warming.

Presently we are witnessing the effects of global warming like the catastrophic floods in our country Pakistan. Already the average global temperature has increased by 1C. Increased temperature will lead sea level rise. sea levels are rising sea levels will  put coastal areas at greater risk of erosion and storm surge. Moreover, melting ice sheets and glaciers will occur leading to soil erosion, flooding. Similarly Water Pollution and Oil Spills,Water table,Poisoning from fracking,Air Pollution and Smog,Acid Rain, Mercury Emission are some other impacts of fossil fuels.

References:

noaa. (2022, August 22). National Oceanic and Atmospheric Administration. Homepage | National Oceanic and Atmospheric Administration. Retrieved October 6, 2022, from http://www.noaa.gov/ 

Wikimedia Foundation. (2022, October 5). Main page. Wikipedia. Retrieved October 6, 2022, from https://www.wikipedia.org/