Scientists Warn Opportunity to Prevent Warming Is Dwindling
Clip: 09/27/2013 | 7m 27s
Ray Suarez talks to Michael Oppenheimer, a professor at Princeton University and member of the Intergovernmental Panel on Climate Change, about a new scientific assessment that updates the previously-held understanding of the rate and consequences of global warming.
Aired: 09/27/13
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