What Is Global Warming ?

It is the biggest problem which faces the earth. It means that the earth’s temperature is increasing because the amount of the carbon dioxide in the atmosphere is increasing. There are many causes to increase the amount of carbon dioxide. Some of them are caused by the nature like volcanoes and some of them are caused by the human like the abuse of energy. Normally, most of the sun rays which is energy are reflected when the amount of carbon dioxide is low but when the amount of carbon dioxide, it becomes like blanket, so it prevent the sun rays from reflecting and keeps these in the atmosphere so the temperature will increase.

http://www.ucsusa.org/assets/images/global_warming/ghouse_effect.jpg