Why U.S. and China agreed on climate change action

Aired: 11/12/2014 | 0:05:31 | Clip
The U.S. and China reached a historic agreement to drastically curb carbon emissions after months of secret talks. Will either side be able to deliver on the pledge? Michael Oppenheimer of Princeton University speaks with Gwen Ifill about the pressures that led to the landmark plan and which other countries may be influenced to address climate change.

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