Melting sea ice, disappearing high-fat food sources mean trouble for Hudson Bay polar bears
Searching for polar bears where the Churchill River dumps into Canada's massive Hudson Bay, biologist Geoff York scans a region that's on a low-fat, low-ice diet because of climate change. And it's getting lower on polar bears.
Searching for polar bears where the Churchill River dumps into Canada's massive Hudson Bay, biologist Geoff York scans a region that's on a low-fat, low-ice diet because of climate change. And it's getting lower on polar bears.
