Sudden stratospheric warming is expected to keep a weakened vortex splintered, plunging the region back to record-breaking ...

Forecasters are warning that the breakdown of the polar vortex high above the Arctic will not bring relief from winter, but ...

These polar bears appear to be maintaining their physical health despite the loss of sea ice—their preferred hunting grounds ...

Much below normal temperatures should persist across the eastern U.S. into early February before moderating slightly.

After decades monitoring polar bears in Norway's far north, researchers say the animals have proven incredibly adaptable, but ...

The finding offers a small window of hope for a polar bear population vulnerable to the effects of climate change.

Polar bears can struggle to adapt to climate change. Bears on Svalbard may be surviving on land prey and seals — but scientists warn it may not last.

Polar bears are now adding new foods to their diet, including reindeer, walruses and bird eggs ...

The North Pole is surrounded by a massive circular upper-air weather phenomenon in the Arctic called the polar vortex. It is ...

Chicago's 2026 Polar Plunge was cancelled due to extreme weather and beach conditions.

Climate deniers are quick to say ‘I told you so’ when the mercury drops. But a warmer planet impacts weather in ways that can ...

A population of bears in Norway’s Arctic is confounding scientists’ expectations, getting fatter and healthier even as the sea ice melts rapidly.