January 14, 2018
U.S. President Donald Trump, who once called climate change a "hoax, tweeted in late December that cities gripped by biting cold snaps on the East Coast could "use a little bit of that good old Global Warming."
Last week, former U.S. Vice President Al Gore, a champion of reducing harmful ozone emissions, tweeted that the record cold temperatures in the East are "exactly what to expect from the climate crisis."
Gore posted that "Global Warming is leading to later freeze-up of the Great Lakes and warmer lake temperatures," a quote from Dr. Katharine Hayhoe of Texas Tech University.
"It is the collision of cold Arctic air with relatively warm unfrozen lake water in early winter that causes lake effect snows in the first place," Hayhoe said.