Sunday, April 22, 2007

What is Global Warming ?




Global warming is the gradual increase of the temperature of the earth's lower atmosphere as a result of the increase in greenhouse gases since the Industrial Revolution.
The temperature of the atmosphere near the earth's surface is warmed through a natural process called the greenhouse effect. Shortwave light comes from the sun to the earth, passing through a blanket of thermal cover, which we call it greenhouse. Greenhouse consists of water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Infrared radiation reflects off the planet's surface toward space but does not easily pass through the thermal blanket. Some of it is trapped and reflected downward, keeping the planet at an average temperature suitable to life, about 60°F (16°C). The Government are not taking this case seriously, but in the future it’s going to be the greatest threat facing the planet.

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