Credit: Toronto Zoo/Cover Images With North America marking Groundhog Day on Sunday (2February) Toronto Zoo’s polar bears had ...

Editor's Note: National Geographic went too far in drawing a definitive connection between climate change ... this polar bear. Photographer Paul Nicklen and I are on a mission to capture images ...

Scientists have quantified how much climate change has driven the population decline of polar bears living in Canada's Hudson ...

A polar bear's plight in an award-winning photo is ... strong emotions in many of those who have seen it. Whilst climate change is the biggest challenge we face, I hope that this photograph ...

In Churchill, northern Canada, a town known as the polar bear capital of the world, climate change could spell danger - for both bears and people. The region has seen its polar bear population ...

University of Toronto Scarborough researchers have directly linked population decline in polar bears living in Western Hudson Bay to shrinking sea ice caused by climate change. The researchers ...

However other researchers say the impacts of climate change on polar bears would differ, depending on location. "It is likely polar bears will disappear from areas where sea ice will be lost in ...

Climate change is starving polar bears into extinction, according to research published on Monday that predicts the apex carnivores could all but disappear within the span of a human lifetime.