Speaking to the UN General Assembly, Donald Trump claimed that climate change "is the greatest con job ever perpetrated on the world."

Trump finally found something that he is actually the greatest of all time in: he's the leading climate change denier in the world.

Demented Donald began his tirade outlining how some speakers at the UN in past decades predicted disasters that hadn't happened yet, and then transitioned into the phrase "global cooling" to destroy today's actual scientific claims of global warming.

TRUMP: You know, it used to be global cooling.

Here's a big lie If you look back years ago, in the 1920s and the 1930s, they said global cooling will kill the world.

We have to do something. Then they said global warming will kill the world.

But then it started getting cooler

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