Environment activists rally in front of the White House to call on the Obama administration to step up its efforts on climate change.
Environment activists rally in front of the White House to call on the Obama administration to step up its efforts on climate change. Olivier Douliery/Abaca Press/MCT
Environment activists rally in front of the White House to call on the Obama administration to step up its efforts on climate change. Olivier Douliery/Abaca Press/MCT

Economy

December 04, 2009 5:56 PM

U.S. action on climate policy is key to international treaty

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