global warming

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					What is global warming

   Global warming and ozone depletion pose a mortal threat to all of
us.The main cause of global warming (also called the green house effect)
is the increase in the amount of carbon dioxide (co) in air.the main
cause of ozone depletion is the release of certain gasses called
chlorofluorocarbons (CFC) which are used in refrigerators,air-conditioner
sand all types of spray cans into the atmosphere.When we consider the way
the global warming takes place, we understand that it is by the trapping
of heat by co2 molecules.Let's see how this happens.

				
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posted:4/30/2012
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