This iconic animal is at the top of the food chain and is essential for the overall marine environment. Climate change is the most serious threat for the polar bear. The current population is 26,000
Loss of Arctic sea ice due to climate change is the most serious threat to Polar Bears throughout their circumpolar range Higher ambient temperatures and erratic weather fluctuations, symptoms of anthropogenic climate change, are increasing across the range of polar bears. Polar Bears are dependent upon Arctic sea ice for access to their prey.
Their dependence on an ephemeral habitat that exists as a function of sea surface and atmospheric temperatures means that climate warming poses the single most important threat to the long-term persistence of Polar Bears.