The Main Cause

There are many causes of global warming as I mentioned. In my opinion, the most important one is greenhouse gases. They are called greenhouse gases because they make the earth warm. A glass greenhouse keeps the temperature high to keep plants grow. The greenhouses gases prevent reflect rays from the sun returning to space. This as we know is useful for plants, but its effect to earth is more than its benefit. It is also one cause of the ozone hole according to scientists. They believe that this phenomenon is going rapidly and the people do not take it as a serious problem and reduce the number of greenhouse gases.