The Greenhouse Effect
is a warming of the atmosphere around the Earth. This happens when some gases
(carbon dioxide, water vapor, ozone, methane, etc.,) in the atmosphere trap the
heat radiated by the Earth. The atmosphere acts like the glass in a greenhouse
(it is from here that the greenhouse Effect gets its name). Over the past few
hundred years, humans have been burning trees and fossil fuels. This has
released many millions of tons of carbon dioxide into the atmosphere. Carbon
dioxide is very good at absorbing the sun’s heat. The extra carbon dioxide has
caused the atmosphere of the Earth to become warmer. This, in turn, causes more
water to evaporate into the atmosphere. Water vapor is also good at absorbing
heat, which causes the Earth’s atmosphere to become even warmer. The average
temperature of the atmosphere has risen by almost 1 degree Celsius in the last
200 years. Scientists have called this effect ‘global warming’. They believe
that the temperature of the atmosphere will continue to rise as long as the
level of carbon dioxide in the atmosphere rises. Increased Greenhouse Effect on
Global Warming could shift rainfall patterns, raise the sea level and alter to
ecological balance.
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