*later he claimed that particular tweet was a joke

A FEW MONTHS LATER

On Dec. 30, 2015, Trump told the crowd at a rally in Hilton Head, S.C., "Obama's talking about all of this with the global warming and … a lot of it's a hoax. It's a hoax. I mean, it's a money-making industry, okay? It's a hoax, a lot of it."

LOL, dude's a stand up comedian