WASHINGTON (7News) — Does this winter feel colder than most? It's possibly due to a weather phenomena called "cross-polar flow". Cross-polar flow is what happens when disruptions in the polar vortex ...

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There is a major weather pattern change underway across the U.S. As we get into next week, the storm track looks really interesting. Major upper-air pattern changes are quite normal. Sometimes we have ...

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Record cold temperatures are once again expected to hit a swath of the country this weekend—even plunging Florida into its coldest stretch of the last 15 years, potentially bringing snow to areas of ...

In the face of sea ice loss, some of the bears on the Norwegian archipelago are gaining weight. By Laura Baisas Published Jan 29, 2026 11:00 AM EST Get the Popular Science daily newsletter💡 ...

The finding offers a small window of hope for a polar bear population vulnerable to the effects of climate change. A polar bear (Ursus maritimus) walks on pack ice in Svalbard, Norway. The effects ...

PARK CITY, Utah — In the snowy subarctic wilds of northern Manitoba, the Inuit have a word for polar bears who’ve lost their fear of being around humans: avinnaarjuk, or “nuisance bear.” That’s a ...

Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all scientists agree. By Eric Niiler The polar vortex is a ribbon of ...

The annual polar plunge fundraiser hosted by the Chicago Polar Bear Club scheduled for Friday was canceled in anticipation of sub-zero temperatures set to freeze the region. The Chicago Polar Bear ...

Polar vortexes are a year-round phenomenon. But Chicago-area residents only notice them when they collapse, experts say. That’s what’s happening starting Thursday when dangerously frigid air from ...

This week, New Jersey is set to experience temperatures below 10 as a shift in the polar vortex is letting Artic air slip south. Tuesday, Jan. 20 and Saturday, Jan. 24 are forecast to be the coldest ...