Despite near certainty in new UN report, a climate of denial persists

The World
A truck drives through water pushed over a road by Hurricane Sandy in Southampton, New York, October 29, 2012.

Friday's release of a major UN report on climate change shows scientists are about as sure as they could possibly be that global warming is real, and that humans are in large part responsible.

And yet denial of the crisis persists.

Host Marco Werman talks about the perception gap with environmental risk specialist Peter Sandman.

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