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What are Greenhouse Gases
Greenhouse gases play an important role in the regulation of the Earth's
energy balance.
Greenhouse gases basically consist
of water vapour, carbon dioxide, methane, nitrous oxide, ozone and CFC's.
The natural greenhouse effect is a
warming process whereby the greenhouse gases in the atmosphere trap the
infra red heat that is trying to escape back into space.
The greenhouse gases then raise
the temperature of the lower atmosphere and the Earth’s surface. During the last 200 years, the atmosphere
has become increasingly polluted by man. These
increased greenhouse gases have enhanced the natural greenhouse effect,
contributing to global warming.
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