Wild Polar Bear Welfare: Sea Ice Loss and Nutritional Stress

Polar bears are experiencing severe welfare decline as Arctic sea ice loss disrupts their hunting season and forces extended fasting periods that threaten body condition and reproductive success.

Key Facts

Arctic sea ice extent has declined by approximately 13% per decade since satellite records began in 1979
Polar bears rely on sea ice to hunt ringed seals — their primary prey — during spring and early summer
Extended ice-free periods force polar bears into multi-month fasting, with pregnant females fasting up to 8 months
Body condition indices in western Hudson Bay polar bears have declined significantly since the 1980s
Cub survival rates correlate directly with maternal body condition at den emergence

Welfare Considerations

Polar bear welfare decline from climate change is among the most well-documented cases of large-scale wildlife welfare deterioration driven by anthropogenic factors. Nutritional stress from shorter sea ice seasons causes chronic physiological stress, reduced reproductive success, and increased conflict with humans as bears seek alternative food sources near communities. Individual welfare interventions — supplemental feeding, conflict deterrence — are insufficient without systemic climate action. Reducing greenhouse gas emissions is the only welfare intervention that addresses the root cause.

What You Can Do

Support aggressive climate policy as the primary welfare intervention for polar bears
Donate to polar bear research programs monitoring welfare indicators across populations
Advocate for community-based polar bear conflict management programs that protect both bears and people