.@UChicago's Pierrehumbert gives his take on #fracking role in fighting #climatechange http://bit.ly/101T1eE via @timmcdonnell @MotherJones
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.@UChicago's Pierrehumbert gives his take on #fracking role in fighting #climatechange http://bit.ly/101T1eE via @timmcdonnell @MotherJones