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The polar vortex is chilling the Midwest, and cable news is using the occasion to talk at length about climate change. CNN’s Don Lemon and Chris Cuomo had a field day tearing down President Trump’s tweet saying the Midwest could use some “Global Waming” — yes, that’s warming with no R — right about now. (F- on science, F+ on spelling.) MSNBC’s Ali Velshi busted out some snazzy graphics to illustrate the rise in CO2 levels in our atmosphere over the long haul, noting the sharp increase in global temperatures as industrialization took off.

Then, Chris Matthews of Hardball brought on a special guest — the Science Guy himself. Bill Nye told him what many of us already know. Climate change is real, and it’s coming for our assets.

Rural, conservative voters are in fact more vulnerable to economic losses from climate change than city dwellers, Nye pointed out. He called out a few agricultural costs of climate change: Food prices will likely go up as farmers struggle to keep up with seasonal pest management, and some U.S. agricultural production may need to shift north “into what would nominally be Canada.” (Well, oops. As Canadians have been quick to point out, Canada is, in fact, Canada.)

The Science Guy definitely got one thing right, though: “The longer we mess around and not address this problem, the more difficult it’s going to be.”