GLOBAL WARMING

With increasing global economic development, it is important to deal with the issue of global warming. More and more greenhouse gases lead to the global temperature rising. The main reason is
that greenhouse gases, such as CO2, accumulate in the atmosphere and catch heat that normally would exit into outer space.
Global warming causes many changes, such as flood, heat waves, hurricane, rising sea level. Meanwhile, it also hastens species extinction and causes a lot of diseases.
We should protect our earth, our environment.