Polar bears in southeastern Greenland are rapidly evolving genetically due to climate change, but scientists say these changes won’t prevent extinction without urgent carbon cuts.

Polar bears in southeastern Greenland are showing rapid genetic changes linked to climate change, including increased activity of "jumping genes" that may help them adapt to warmer temperatures, reduced sea ice, and shifting diets, according to a University of East Anglia study. Researchers found these genetic shifts, particularly in genes related to heat stress and metabolism, were more pronounced in southern bears facing greater environmental stress. While the findings suggest some potential for evolutionary adaptation, scientists stress these changes are insufficient to offset long-term threats and emphasize that cutting carbon emissions remains critical to preventing extinction.