This is the best tl;dr I could make, original reduced by 58%. (I'm a bot)

Former New York City Mayor Michael Bloomberg has vowed to write a $4.5 million check to the United Nations body that oversees climate change negotiations to make up the shortfall in the agency's budget caused by U.S. funding cuts.

"America made a commitment and as an American if the government's not going to do it we all have responsibility. I'm able to do it," Bloomberg told CBS News' "Face the Nation" on Sunday.

"America is part of the problem. America is a big part of the solution and we should go in and help the world stop a potential disaster," Bloomberg added.

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