The Government’s Massive New Climate Change Study Challenges Trump’s Policies

President Donald Trump on Wednesday once again disputed the science of climate change, questioning how this week's Thanksgiving cold spell could occur as the planet warms. "Whatever happened to Global Warming?" he asked on Twitter.

On Friday, scientists working for his administration gave Trump a stark answer: climate change is a menace that threatens the wellbeing of the United States. The phenomenon is already disrupting local communities in the U.S., and could cost the U.S.