Fossil fuels make up most of the world’s energy for electricity and fuel to specify crude oil, coal, and natural gas, each one is different in efficiency, availability, and byproducts, and they are same because they are all burn to get to the energy out and the main byproduct is carbon dioxide, a greenhouse gas. (Fischer, Douglas) The more carbon dioxide in the faster temperature rises, so has the emission regulate carbon dioxide emission before it out of control. Also the other byproducts are harmful as to the environment as to human. When fossil fuels are burned they release hydrogen sulfide and sulfur dioxide gases and heavy metals leave behind, when burned it release hydrogen sulfide and sulfur dioxide the gases will mix with water in air to create acid rain that could scar or destroy forests, with second most biodiverse forest being in the U.S. it have to be protected.…