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And there are still some folks who just don't believe in climate change — period. As astrophysicist Neil DeGrasse Tyson is fond of saying, "the good thing about science is that it's true whether or not you believe in it."
With that in mind, we turn to Texas State Climatologist John Nielson-Gammon to discuss the science of climate change – what we know, and how we know it. And we'll (try to) leave the politics out of it.