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From PBS NewsHour: Closing window for action on climate change offers consequences and opportunity

April 1, 2014

A UN report warns that the effects of climate change — flood, drought and food shortages — have already caused harm, and will worsen quickly if we don’t take immediate action. Judy Woodruff takes a closer look at the global implications with two people who worked on the report: Michael Oppenheimer of Princeton University and Patricia Romero Lankao of the National Center for Atmospheric Research.