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5 Degrees Warmer: Civilization Collapses

NationalGeographic NationalGeographic·4,248 videos
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Uploaded on Jan 31, 2008

If the world warms by five degrees the planet reaches a nightmare vision of life on Earth as traditional social systems break down.

Six Degrees Could Change the World :
SUN FEBRUARY 10 8P et/9P pt : http://channel.nationalgeographic.com...

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