Introduction
Basically, all living things in the earth need heat to life. The earth's heat source is sun. In the other words, without the sun we cannot have life. Our earth has a blanket to keep the surface warm, which support the life in the earth. We call that blanket as atmosphere. Without atmosphere, the earth becomes cold. This process is known as greenhouse effect. But, nowadays the heat becomes our opponent, which is caused problems on the earth. The heat that goes to the earth's surface is more than we need. So, the earth has become warmer than it used to be. This is called global…
