A NASA scientist has called out Ricky Perry on climate change. James Hansen, one of the world’s foremost experts on global warming, says that this past summer’s heat wave across Texas and the drought in the Southwest, as well as a prior heat wave in central Russia the summer before, would have not occurred if global warming wasn’t real. And he attacks Perry for praying for the drought to end without also acknowledging the possibility that the science is accurate: “Science cannot disprove the possibility of divine intervention. However, there is a relevant saying that, ‘Heaven helps those who help themselves.’ “

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