Coldest Temperatures In Years Blast U.S., Prompting Polar Vortex Chatter. Persistent blasts of Arctic air have been keeping it bitter cold.

When the polar vortex is strong, it locks the cold air in the arctic. (MORE: How to stay safe in the cold as frigid temperatures hit) It's when the polar vortex gets weaker, or breaks up, that it ...

These polar vortex stretches are happening more frequently as the world — and especially the Arctic — warms, a 2021 paper published in the journal Science, also co-authored by Cohen, demonstrated.

A shift in the polar vortex could bring a blast of Arctic air to millions of Americans in the second half of March, forecasters have warned. The polar vortex usually keeps cold Arctic air confined ...

These polar vortex stretches are happening more frequently as the world — and especially the Arctic — warms, a 2021 paper published in the journal Science, also co-authored by Cohen, demonstrated.

(CNN) — It’s really, really cold again — as the US shivers through at least the eighth blast of air from the Arctic this winter. Winter, which is warming faster than any other season for ...

These polar vortex stretches are happening more frequently as the world — and especially the Arctic — warms, a 2021 paper published in the journal Science, also co-authored by Cohen, demonstrated.