Why are increasing temperatures in the Arctic a threat to polar bears?

Question

Quizplus · Accepted Answer

Increasing temperatures in the Arctic lead to melting of summer sea ice, which is the primary hunting ground for polar bears. This causes a lack of food and nutrition for polar bears, making them less reproductively fit. Additionally, the melting of sea ice can cause polar bears to drown as they search for the ice. As a result, polar bears may end up invading urban areas on land in search of food. Hence, all the answers are correct.

Why Are Increasing Temperatures in the Arctic a Threat to Polar