Gloval Warming

First of all, energy from the sun drives the earthfs weather and climate; in turn, the earth radiates energy back into space. According to the textbook, gthe tendency of carbon dioxide, methane, and other gasses to trap solar radiation is called the greenhouse effect,h (Asking About Life, p.555). Heat is somewhat like the glass panels of a greenhouse. Without this natural greenhouse effect, temperature would be much lower than they are now, and life as known today would not be possible.

However, problems may arise when the atmospheric concentration of greenhouse gases increases. The combustion of fossil fuels and other human activities are the primary reason for the increased concentration of carbon dioxide. Fos

In summery, human activities have increased carbon dioxide concentrations in the atmosphere that is the main cause of the global warming. This may dangerously change the world climate. International action is occurring to reduce the risks concerned climate change. However, there still remain political and economic reasons between nations, which becomes one of the difficulties to solve global warming problems.

Today, action is occurring at every level to reduce, to avoid, and to better understand the risks associated with climate change. For instance, the author of g Environmental Quality in Japanh wrote, g The increasing concentrations in the air of the carbon dioxide emitted by motor vehicles continue to be a serious problem, and in 1992 a low was passed that attempts to reduce pollution levels by restricting the types of vehicles registered in Tokyo and Osaka areas,h(Akiyama, p.204). In December 1997, 174 nations signed a treaty in Kyoto, Japan, agreeing to reduce overall carbon dioxide out put. g The Kyoto Protocol requires industrialized nations to cut their greenhouse gas emissions by 5 percent by the year 2010. Nearly all industrialized nations have promised to do so. Only Canada, Australia

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