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Global Warming

             Most of the world today regards the "global warming" as both real and dangerous.
             Many aspects, however, have already been discounted by the scientific community. Fears .
             of massive sea level increase, accompanied by many early discussion about global .
             warming. Scientist afraid the sea level would increase onto land due to the melting of ice. .
             It is now widely agreed that even the potential contribution of warming to sea level rise .
             would be swamped by other more important factors (Moran, 1999). These factors include .
             hazardous gases and pollutants.
             We are entering a period of global warming as a result of burning vast amounts of .
             fossil fuels. By burning fossil fuels, "we are putting into the air more gases that act like a .
             globe of glass around the planet" (National Geographic, 1990). The "globe of glass" is a .
             mixture of all the fuels that remains permanently on the surface of Planet Earth. It is .
             called glass because it prevents cooling air from entering causing the Green House Effect. .
             Many scientists believe that human processes are contributing to global warming .
             regardless of impact of natural cycles also causing climate change (Keller, 1999). The .
             earth's climate is predicted to change because human activities are altering the chemical .
             composition of the atmosphere through the buildup of greenhouse gases - primarily .
             carbon dioxide, methane, and nitrous oxide. The heat-trapping property of these gases is .
             undisputed. Although uncertainty exists about exactly how earth's climate responds to .
             these gases, global temperatures are rising.
             Scientists on Hawaii's Mauna Loa have recorded steady increase in human activities .
             such as burning fossil fuels. Most believe that the rising CO2 level will lead to higher .
             global temperatures and significant climate change (National Geographic, 1990). Some .
             scientists do not believe this. Over 17,000 scientists have signed a petition saying, in part, .

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