Top science groups tell climate change doubters in Congress to knock it off

More than half of the Republicans in Congress question the science of human-caused climate change, according to the Center for American Progress. The presumptive Republican nominee for president, Donald Trump, has also said he is not “a great believer in man-made climate change.” In a letter dated June 28, 2016, 31 leading U.S. scientific organizations sent members of...

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