More in the cross-post on the MRC's NewsBusters blog.
On Wednesday's NBC Today, weatherman Al Roker became defensive over people criticizing media hype about the cold snap: "Well, a lot of folks have been saying there's no such thing as a polar vortex and that it's some left-wing media conspiracy. Let me tell you something. First of all, we've never used the phrase 'global warming' or 'climate change' in conjunction with this."
Later on the show, Roker returned to the topic and ranted: "Some are saying that, A, we've created this phrase to hype it and to create hysteria and that we have made it a political issue by linking it to either climate change or global warming. I will give anybody who can prove that I have ever linked this with global warming or climate change, I will donate a thousand dollars to your charity. Alright?"