Climate Warming
Polar bears rely on sea ice to hunt, breed, roam, and sometimes to den. But the Arctic is warming and ice is melting due to human-caused climate change.
About Polar Bears
The Role of Genetics in Polar Bear Conservation
A new study looks at decoding the genetic makeup of the world’s polar bears, including how genetically diverse populations are and whether the bears might be able to adapt to a warming Arctic.
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Article | 9 min | Mar 24, 2026
About Polar Bears
A long wait for sea ice
Hudson Bay, where Churchill's polar bears roam, saw its warmest fall on record. PBI's chief climate scientist, Dr. Flavio Lehner, gives us insight into what we saw with sea ice this season.
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Article | 3 min | Dec 16, 2025
Climate Warming
Are polar bears affected by wildfires?
Although polar bears spend much of their lives on the sea ice, most spend time on land — and a small number build their dens in areas at risk from wildfires
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Article | 4 min | Sep 25, 2025