introduction to global warming

First I would like to explain the meaning of Global warming. Global warming is the increase in the average measured temperature of the Earth's near-surface air and oceans started in the mid-20th century. Well this increase of the temperature didn’t come from nowhere; there are causes for the talk about the causes. First is the green house effect, the green house is a combination layer of some gases which are carbon dioxide, methane, nitrous oxide and water vapor. First one is carbon dioxide which caused by burning fossil fuel which comes from power plants, cars, air planes and buildings. Second is methane which comes from rice paddies, bacteria in bogs and fossil fuel productions. Third is nitrous oxide which is naturally produced by oceans and rainforests, also it is manufactured by human like nylon and nitric acid production. Fourth is water vapor which is caused by heat, water vapor increases the heat because it holds the heat, to be more specific it holds two-thirds of all heat in the green house. In general I can say burning fossil fuel and the modern technology are the main causes of the global warming.

In my opinion people must start to reduce the gasses emission, as a start people must know the dangers of global warming so that everyone realize the current situation, reducing gasses emissions is everyone responsibility so people must be taught what is their role in order to reduce it. Countries must depend on clean sources of power.


My references:
http://en.wikipedia.org/wiki/Global_warming//en.wikipedia.org/wiki/Global_warming
http://www.ecobridge.org/content/g_cse.htm