Stephen Hawking - Earth could become like 'sister planet' Venus due to global warming Video

Stephen Hawking explains why life survives on earth and a 'worst case scenario' greenhouse effect that could make life on earth unlivable.

Venus and Greenhouse effect:

http://ircamera.as.arizona.edu/NatSci102/lectures/venus.htm

Photos of Venus:
http://www.astronomy.no/venus080604/venuspix.html

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Author: successfulbuild; Uploaded: Nov 8, 2009; Duration: 1:51; Views: 154

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