Wild Polar Bear Welfare: Sea Ice Loss and Starvation Risk

Polar bears are uniquely dependent on sea ice for hunting ringed seals. Rapid Arctic warming is reducing ice duration and extent, causing longer fasting periods, nutritional stress, and increasing human-bear conflicts with welfare consequences for both.

Key Facts

Arctic sea ice extent has declined approximately 40 percent in summer since 1979, dramatically reducing polar bear hunting seasons
Polar bears in Hudson Bay now come ashore an estimated three weeks earlier than in the 1980s due to earlier ice breakup
Body condition scores of Hudson Bay polar bears have declined significantly, with females producing fewer and smaller cubs
Problem bear management — trapping, relocating, and killing bears that enter communities due to food stress — is increasing as bears spend more time on land
Polar bears are listed as vulnerable on the IUCN Red List, with 19 subpopulations showing varying trends

Welfare Considerations

Polar bear welfare is under acute climate-driven pressure. Extended fasting periods as ice-free seasons lengthen cause nutritional stress, particularly for pregnant females who must fast through denning and cub-rearing without sea ice hunting opportunity. Cubs born to nutritionally stressed mothers have lower survival rates. As bears enter communities seeking food, they face hazing, trapping, and sometimes killing by wildlife managers — causing acute welfare harm to individual animals. Bears scavenging human waste experience novel disease exposures and nutritional imbalances. The welfare consequences of climate change for polar bears are not abstract future concerns — declining body condition, reduced cub survival, and increasing management killing are occurring now, driven by warming that is measurable and attributable.

What You Can Do

Support climate action as the most important polar bear welfare intervention — sea ice loss is the primary driver of welfare decline
Donate to Polar Bears International and WWF polar bear conservation programmes
Support community-based coexistence programmes in Churchill and other polar bear communities that reduce management killing
Advocate for reducing methane and short-lived climate pollutants as rapid-acting climate interventions affecting Arctic sea ice
Raise awareness about the welfare dimension of climate change for polar bears — it's not just about extinction, it's about suffering now