Strange things are happening in the sky above the Arctic — and they’re freezing the U.S. in unexpected ways. A new study reveals how shifting polar vortex patterns explain why parts of the country ...

Cold air breezes over North America as a result of two new patterns identified in the stratospheric polar vortex, countering ...

The latest forecast indicates La Niña conditions could return just in time for winter despite El Niño-Southern ...

There are more ways than we knew for the stratospheric polar vortex to get disrupted, shooting cold air southwards across ...

Both of these cycles have longstanding climate patterns. Scientists stunned after satellite data unveils new information ...