Yes, the Weather is Polar. No, it's not the Vortex

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Much of the country had to bundle up this week due to some unusually cold weather. Even in the deep South, residents struggled with temperatures in the low 20s.

With the big chill comes the revival of an ominous phrase: "the polar vortex."

The sinister-sounding label has been hard to escape on ...Read More

Source: NPR Science - ingested into KQED