He is right, IMHO, but he played it down last night.
Early in the debate, HRC said, “My opponent believes climate change is a hoax”. Trump didn’t take the bait and respond to that, although he could have said, “It is!”
"It's a scam, like everything else she does."
(Yeah, too harsh for the debate, but how I feel about it.)
First of all, “climate change” is a sneaky misnomer put out by the Big Government crooks. What they really mean is “catastrophic man made global warming.”