Leaders celebrate the adoption of an agreement that for the first time asks all countries to reduce or rein in their greenhouse gas emissions.
Leaders celebrate the adoption of an agreement that for the first time asks all countries to reduce or rein in their greenhouse gas emissions. Francois Mori AP
Leaders celebrate the adoption of an agreement that for the first time asks all countries to reduce or rein in their greenhouse gas emissions. Francois Mori AP

Paris climate accord is a big, big deal

December 16, 2015 5:27 PM

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