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
-
Labels:

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

Main Post

Wild market swings as tariffs rattle US economy

Stocks swung sharply in the US, as Trump offered mixed signals about appetite for trade talks. from BBC News https://ift.tt/fqU8CPD