News Brief: Years after claiming that concerns over climate change were a “total, and very expensive, hoax,” President Donald Trump has chosen a widely respected expert on extreme weather and climate impacts to head the White House Office of Science and Technology Policy. The selection of University of Oklahoma meteorologist Kelvin Droegemeier won high praise even from critics of Trump’s environmental policies, including the Obama administration’s science adviser, John Holdren. “He’s a very good pick. … He has experience speaking science to power,” the journal Science quoted Holdren as saying. Trump has been criticized for taking so long (560 days) to nominate an OSTP director, who traditionally also serves as White House science adviser.