Donald J. Trump
✔
@realDonaldTrump
 · Nov 21, 2018
 Brutal and Extended Cold Blast could shatter ALL RECORDS - Whatever happened to Global Warming?

Dr. Michael Mann, professor of atmospheric science at Pennsylvania State University, told Huffington Post “[the tweet] demonstrates once again that Donald Trump is not an individual to be taken seriously on any topic, let alone matters as serious as climate change.

"He is a clown — a dangerous clown," he said.