Main causes of global warming

There are many causes of global warming. The first cause is carbon dioxide from power plants, carbon dioxide emitted from cars, carbon dioxide from airplanes and carbon dioxide from buildings. The next cause is methane. In addition nitrous oxide is another cause. Moreover, deforestation is cut down the trees and this one of Global warming causes. Another cause is city gridlock. Carbon in atmosphere and ocean is another cause. In addition, tundra is another cause of global warming and tundra means 'treeless plain' in Finnish. The last cause is permafrost. Permafrost is a solid structure of frozen soil, extending to depths of some area. And this cause because it effect badly in some species.

To sum up, these causes produce an effect and these effects harm our planet and harm our self. So we have to do something to stop these causes to make our lives better.