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.