Polar vortex: What is it and how does it happen?
Thursday, January 31, 2019 - 04:50
in Earth & Climate
The deep freeze gripping much of the US has been blamed on a polar vortex. Here's what that means.
Updated by artificial intelligence Tue, 13 Jun 2023, 2:53:47 UTC Learn more
- Tell your friends
- Get science news via