Secondly,cause is greenhouse gasses. According to E.Mann(2009),’’The natural presence of greenhouse gasses such as carbon dioxide,methane, and nitrous oxide in the atmosphere .The so-called greenhouse effect,which leads to a warming of the lower atmosphers that surface temperature must increase.’’(p.195).So how to solve the greenhouse gasses is planted more trees .To add oxygen to the air because a tree absorb carbon dioxide .Using a bus instead a car for reduce pollution because the pollution effect to high temperatures .