Polar bears are uniquely dependent on sea ice for hunting ringed seals. Climate-driven sea ice loss is causing nutritional stress and reproductive failure with profound welfare implications.
Polar bear welfare is almost entirely determined by climate change trajectory — their specialized adaptations to Arctic sea ice hunting are both extraordinary and extremely vulnerable to habitat loss. Individual welfare impacts are increasing as extended ice-free seasons cause prolonged fasting, reduced cub survival, and increased stress-related behaviors. Bears entering communities in search of food create human-wildlife conflict that can result in lethal control of individual animals. Nutritional stress in pregnant females reduces cub birth weight and increases early mortality. The welfare implications of climate change for polar bears are among the clearest and most extensively documented examples of climate-driven animal suffering. Conservation responses must honestly acknowledge that without aggressive climate action, no other conservation measure will be sufficient to protect polar bear welfare and population viability.