The atmosphere is something that is around us everyday, but do we really think about the changes that occur in it. It isn't that we just aren't paying attention, but more of the fact that it is hard to notice slight changes over long periods of time. Everyday gases are released into the air by all living material. The gases in the air are used for many important things. For example, hydrogen is released by …showed first 75 words of 3199 total…

…showed last 75 words of 3199 total…on a global scale. Works Cited Bilger, Burkhard. Global Warming. New York: Chelsea, 1992. Faleh, Waiel. Associated Press. "Report Warns of Future Risks of Global Warming." The Courier Journal. 3 Aug. 2006.: A8. Firor, John. The Changing Atmosphere: A Global Challenge. New Haven: Yale. 1990. Gelbspan, Ross. The Heat Is On: The High Stakes Battle over Earth's Threatened Climate. New York: Addison-Wesley. 1997. "Kyoto Conference: A Curtain Raiser." Global Warming. 3 Aug. 2006. Roleff, Tamara. Global Warming: Opposing Viewpoints. San Diego: Greenhaven. 1997.