Global Warming Causes

There are several causes of global warming which came from humans' bad behavior and natural causes. The most significant reason for this issue is the increase of carbon dioxide in the air which is emitted from cars, airplanes, buildings …etc. Also, other chemicals such as ozone, nitrogen dioxide and sulfur dioxide cause air pollution, killing trees and damaging building. Another obvious cause is the population, because more people means more using of transportation, so more fossil fuels will burn. Yet another important reason is cutting down trees. In addition, acid rain and forest fires make earth too hot and damage green areas. Moreover, some methods of dumping rubbish are also increasing from this problem. The last point to consider is greenhouse gases which are made from methane gas from wetlands and tundra.