Polar vortex: What is it and how does it happen?

The deep freeze gripping much of the US has been blamed on a polar vortex. Here's what that means.

from BBC News - World https://bbc.in/2Sex5LW
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Sheff Wed to start next season with 15-point penalty, bidder told

The EFL has informed the preferred bidder for Sheffield Wednesday that the club will start next season in League One with a 15-point penalty...