The Who, What, When, Where, and Why of the Polar Vortex.

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https://eos.org/articles/the-who-what-when-where-and-why-of-the-polar-vortex

Source: By Katherine Kornei, EosAGU. 

Excerpt: The polar vortex is a media darling. Headlines frequently announce that it’s coming, collapsing, or splitting, and articles often tout its role in record-setting winter storms. But misconceptions about this atmospheric phenomenon abound, and scientists are still untangling its effects on our weather. ...“circumpolar vortex,” typically refers to a swirling mass of air at far northern or southern latitudes. “It’s a region of high wind speed that encircles the pole,”.... ...recent decreases in Arctic sea ice cover—triggered by climate change—have been linked to a more unstable stratospheric polar vortex.... 

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