Wild Polar Bear Welfare and Climate Change

Polar bears are the iconic face of Arctic climate change — but behind the symbol lies the welfare reality of individual bears facing starvation, longer fasting periods, and new stressors as sea ice collapses.

Key Facts

Polar bears (Ursus maritimus) depend on sea ice as a platform for hunting ringed and bearded seals — their primary prey
Arctic sea ice extent has declined by approximately 13% per decade since 1979, with summer ice disappearing fastest
Bears in Hudson Bay now spend 3–4 weeks longer on land fasting than they did in the 1980s, reducing body condition and reproductive success
Stressed, malnourished bears show increased aggression toward each other and toward humans in Arctic communities
Climate-driven range expansion of grizzly bears is producing grizzly-polar bear hybrids in some areas — raising conservation and welfare questions
Pregnant females require sufficient fat reserves to sustain a 4-5 month winter fast while nursing cubs — poor body condition leads to cub abandonment
The IUCN lists polar bears as Vulnerable, with population projections showing significant decline under continued warming scenarios

Welfare Considerations

The welfare of individual polar bears is deteriorating as climate change reduces the sea ice they depend on for survival. Prolonged fasting — now regularly extending to 5 months or more in some populations — causes physiological stress, weight loss, and muscle catabolism that mirrors malnutrition in other mammals. Cubs born to malnourished mothers have lower survival rates. Bears stranded on land without food increasingly enter human settlements, leading to aversive deterrent actions or lethal control. The welfare suffering of individual bears is not an abstraction — it is the daily reality of a species being displaced from its ecological niche by human-caused climate change.

What You Can Do

Support strong climate policy — reducing greenhouse gas emissions is the most impactful action for polar bear welfare
Donate to Polar Bears International, WWF Arctic programme, and the Arctic Institute of North America
Oppose Arctic oil and gas development that threatens bear habitat and risks catastrophic spills
Support community coexistence programmes in Arctic communities that use non-lethal deterrents rather than lethal control
Reduce your personal carbon footprint through diet, transport, and energy choices
Oppose trophy hunting of polar bears — populations under climate stress cannot absorb additional mortality pressure
Follow and share credible science about polar bear welfare impacts to counter misinformation about Arctic wildlife