US: Action on Climate Change Is 'Economic, Security Imperative'

December 01, 2015 09:28 AM
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U.S. President Barack Obama says climate change is "an economic and a security imperative that we have to tackle now." Obama spoke to reporters on the sidelines of the U.N. Climate Summit outside Paris, where leaders are working to agree on binding measures to keep global temperatures from rising more than two degrees C. above pre-Industrial Revolution levels.