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Global Warming
Beginning of essay
, aside from pollution is one of scientists biggest
concerns. is caused by the Greenhouse effect. There are 4
steps in the Greenhouse effect. 1-Sunlight radiates from the sun, through
space, to EarthÆs atmosphere. 2- The sunlight enters the atmosphere and
hits Earth. Some of it turns into heat ene ....
Middle of essay
....sed concentrations of
aerosols in atmosphere, which is a traditional form of air pollution),
which tends to cool the atmosphere.
With all these gases in the air, it is starting to change the EarthÆs
climate. The temperature of the EarthÆs surface is as warm, if not warmer
than it has been in any other century since at least 1400 AD. The
temperature over the past century has risen one degree Fahrenheit over the
last century. These last few decades have been the warmest this century.
The sea leve.... |
| Number of words: 774 |
Approximate pages: 3 |
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