Far away across translucent “fast” ice attached to a deceptively low-slung glacier, a creamy polar bear was leading her 18-month-old cubs under a cliff along a narrow shore looking for food.

Experts say polar bears' hunting grounds have diminished as the Arctic ice sheet melts because of climate change, forcing them into populated areas as they try to find food. The man, identified as ...

Scientists agree climate change will cause a reduction in sea ice, which is likely to have a long-term detrimental effect on polar bears and overall population numbers. Elsewhere, a three-year-old ...