Global Warming Brings Us Closer to Doomsday

Today the Doomsday Clock was moved 2 minutes closer to midnight, from 11:53 to 11:55, partially due to climate change as a result of global warming.

"There's a realization that we are changing our climate for the worse," said cosmologist and mathematician, Stephen Hawking. "That would have catastrophic effects. Although the threat is not as dire as that of nuclear weapons right now, in the long term we are looking at a serious threat."

See source:
CBS News

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How NOx emissions effect global warming.