Our planet warm is because green house gases that naturally exist on atmosphere heating it by trapping energy from the sun. This is what web call greenhouse effect. If this greenhouse gases not exist our planet surface will as cold as Moon (-18 degrees celsius). Our planet surface now have temperature about 15 degrees celsius.
Measurements taken from all over the world, however, have shown that the global climate is changing. In the last 100 years the atmosphere has warmed up by about half a degree Celsius. Also during this time humans have been emitting extra greenhouse gases, which are the result of burning fossil fuels (like coal, oil and gas). These gases include carbon dioxide, methane and nitrous oxide.
It’s true that we made emissions of greenhouse gases by using fossil fuels. The extra greenhouse gases in the atmosphere trap more energy and therefore enhance the greenhouse effect. This may cause more warming. Greenhouse gases are also released by the exhausts of motor vehicles and the cutting down of rain forests. 
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This post has tag Carbon dioxide, Celsius, Climate change, Environment, Fossil fuel, Greenhouse effect, Greenhouse gas, and posted by Mara Mei under category Encylopedia. Good Articles :
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This post has tag Carbon dioxide, Celsius, Climate change, Environment, Fossil fuel, Greenhouse effect, Greenhouse gas, and posted by Mara Mei under category Encylopedia. Good Articles :
February 18th, 2009 at 11:51 am
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