Polar bears are experiencing profound welfare effects from rapid Arctic sea ice loss, including starvation, drowning, and increased human conflict.
Polar bears experiencing starvation suffer from prolonged hunger, muscle wasting, and metabolic stress. Extended swimming to reach ice leads to exhaustion and drowning. Females unable to accumulate fat reserves cannot successfully den or nurse cubs. Conflict with humans when bears enter settlements leads to lethal control. This is one of the starkest welfare consequences of anthropogenic climate change.