Causes of the global warming

There are many causes that make the temperature of the atmospheric layers rise. The main reason is the human activities development and industrial work, such as production of oil and gas. The atmospheric layers are consisted of gases like methane, carbon dioxide and vapor water mainly, theses gases are increased by the using of fuel such as cars, air conditioning and other. As another reason is cutting trees and making the percentage of the carbon dioxide increase. In fact the amount of the burning fossil is equal to one fifth of the atmospheric gases and the using of vehicles is about 20%in all over the world. Not only but also the amount of forest burning by storms like in Amazon and Indonesia causes the increase of carbon dioxide because of the producing of carbon dioxide and absorption of the trees to carbon ratio inversely proportion to the atmosphere.