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climate change report blames humans Petersons Earlystart _00013707.jpg
climate change report blames humans Petersons Earlystart _00013707.jpg

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    U.N. climate report blames humans

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U.N. climate report blames humans

Scientists are 95 percent certain climate change is man-made. CNN's Indra Petersons reports.

U.N. climate report blames humans

Scientists are 95 percent certain climate change is man-made. CNN's Indra Petersons reports.