2. It’s so cold that…

This is not the setup to a bad joke. Temperatures are growing dangerously low across the Midwest this week. You could get frostbite in as little as five minutes; it will be warmer in Antarctica than in Des Moines; it could feel like minus 65 in Minneapolis.

Hundreds of schools are being closed, and the governors of Illinois, Michigan and Wisconsin have declared emergencies. Above, Lake Michigan freezing over in Chicago.

How can it get so cold if the Earth is warming? Because climate and weather are not the same thing.

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