GLOBAL WARMING

Global Warming

Global Warming

In the past century, the earth's surface temperature has increased from 0.45 to 0.60 degrees Celsius. Although some scientists believe that global warming is not a problem, many scientists believe that global warming is a serious problem, and can not be ignored (Hansen 2000). Global warming, as the term implies, is to increase the temperature of Earth. As the amount of "greenhouse gases" in the air increases, so will be the greenhouse effect (Hansen 2000). Major greenhouse gases are carbon dioxide, methane and nitrous oxide. Global warming believers fear the consequences of global warming can have ...