Funny, He didn’t provide a single piece of evidence.
"It's settled science!", "The debate is over!".
He's telling us morons to go back to our guns and religion and leave the thinking to the elite.
Religions don't require evidence; only faith. The author carries on as though he were somehow especially credentialed to discuss climate science. He is not, because he is not a climatologist. Being a professor at Harvard and the Kennedy School of Government (a/k/a "Camelot High") does not imbue him with either a depth of knowledge on the subject of Earth's climate or mystical powers of revelation that allow him to see perfect evidence of causation where countless others find only a dense web of conflicting data.
What the Professor does not reveal in this article, other than a haughtily dismissive tone toward those with whom he disagrees, is his actual title: "Teresa and John Heinz Professor of Environmental Policy". 'Nuff said?