The polar vortex is acting weird and the US is paying the price this winter
It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here ...
Why the U.S. has been home to Earth’s most unusually cold air this year
The United States has been at the epicenter of the planet’s most unusually cold conditions early in 2025. The polar vortex is ...
Why has it been so cold in Rochester? It's not just the polar vortex
The polar vortex is not synonymous with cold snaps, but when it slides toward the United States, the polar jet stream can ...
Why ice loss in the Arctic is threatening polar bear populations
After a summer of fasting on land, the bears need to get back to their frozen home to hunt seals and bulk up. But their migration ritual is changing.