Greenhouse gases are a natural part of the atmosphere.
They trap the sun's warmth, and maintain the earth's surface temperature at a level necessary to support life. You have just graduated from college and have been employed by The Good Earth Times as a writer for an environmental awareness magazine. Mrs. Green, your boss, has just asked you to write your first article for the magazine. This article is to be a short persuasive essay on global warming and it is to be included in the next issue of The Good Earth Times . A persuasive section that will be used to try to convince people that global warming is occurring.