NASA's new chief changes mind, now believes in climate change

NASA's new administrator, a former lawmaker nominated by President Donald Trump to lead the US space agency, admitted Wednesday he has changed his mind about climate change and now believes that humans are the main driver of greenhouse gas emissions. "The National Climate Assessment that includes NASA and it includes the Department of Energy, and it includes NOAA (the National Oceanic and Atmospheric Administration), has clearly stated that it is extremely likely... that human activity is the dominant cause of global warming, and I have no reason to doubt the science that comes from that," Jim Bridenstine said at a Senate hearing.

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