By Ed O'Keefe , Oct 01, 2015 Washington Post
Brown sent a letter to Carson on Thursday citing California’s debilitating drought as one example of man-made climate change.
“Please use your considerable intelligence to review this material,” Brown wrote in the letter, according to CNN. “Climate change is much bigger than partisan politics.”
He also included a flash drive containing a U.N. report on the subject.
Carson had said there is no “overwhelming science that the things that are going on are man-caused and not naturally caused” earlier this week.
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