A typical map of temperatures across the planet shows just a snapshot in time, listing the day’s various highs and lows. But temperature isn’t static; it rises and falls, and it’s influenced by all ...

The stratospheric polar vortex, the winter engine that traps Arctic cold high above the North Pole, is entering its seasonal collapse. What’s left is the lower-level polar vortex core, lingering over ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. An unusually intense and early season heat wave has shattered March ...

The stratospheric polar vortex is collapsing for the season, but its remnants can still bring cold air to the US. The polar vortex dissolves annually as the Arctic warms, reducing the temperature ...