We don’t have to tell you its cold outside. It’s enough to make even hearty New Englanders wince and whimper. And now we’re learning a curious new term to explain the extreme freeze.
It’s not a cold snap or arctic air or a frigid spell. What we’re feeling is a polar vortex. Sounds pretty ominous, right? Almost like science fiction. But turns out it’s a very real thing.
- WGBH News science editor Heather Goldstone, who has a PhD in ocean science from MIT.