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Global Warming - Essay

Global Warming

Global Warming

To talk about this topic, the first thing we have to know is what is Global warming.
Global warming is a gradual increase in world temperatures caused by polluting gases such as carbon dioxide which are collecting in the air around the Earth and preventing heat escaping into space.
There are many signs to show that this phenomenon is already happening. Some of them are:

� Average temperatures have climbed 1.4 degrees Fahrenheit (0.8 degree Celsius) around the world since 1880, much of this in recent decades, according to NASA's Goddard Institute for Space Studies.
� The rate of warming is increasing. The 20th century's last two decades were the hottest in 400 ...

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Arctic ice is rapidly disappearing, and the region may have its first completely ice-free summer by 2040 or earlier. Polar bears and indigenous cultures are already suffering from the sea-ice loss.
� Glaciers and mountain snows are rapidly melting�for example, Montana's Glacier National Park now has only 27 glaciers, versus 150 in 1910. In the Northern Hemisphere, thaws also come a week earlier in spring and freezes begin a week later.
� Coral reefs, which are highly sensitive to small changes in water temperature, suffered the worst bleaching�or die-off in response to stress�ever recorded in 1998, with some areas seeing bleach rates of 70 percent. Experts expect these sorts of events to increase in frequency and intensity in the next 50 years as sea temperatures rise.
� An upsurge in the amount of extreme weather events, such as wildfires, heat waves, and strong tropical storms, is also attributed in part to climate change by some experts.

These exes of polluting ...

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Global Warming. (2011, May 9). Retrieved November 28, 2024, from http://www.essayworld.com/essays/Global-Warming/99024

"Global Warming." Essayworld.com. Essayworld.com, 9 May. 2011. Web. 28 Nov. 2024. <http://www.essayworld.com/essays/Global-Warming/99024>

"Global Warming." Essayworld.com. May 9, 2011. Accessed November 28, 2024. http://www.essayworld.com/essays/Global-Warming/99024.

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PAPER DETAILS

Added: 5/9/2011 09:18:54 PM
Submitted By: czaap
Category: Environment
Type: Premium Paper
Words: 816
Pages: 3

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