...“Both research literature and government reports state clearly that heat waves in the US are now no more common than they were in 1900, and that the warmest temperatures in the US have not risen in the past fifty years,” Steven Koonin, the undersecretary for science at the Department of Energy in the Obama administration, wrote in an op-ed on Saturday... ...He said it started in 2013, when he was asked by the American Physical Society to update the organization’s public stance on the changing climate. Over the next year, Koonin said he initiated a workshop to act as a...