Fasting season length sets temporal limits for global polar bear persistence
Separating fact from fiction: polar bears and climate change - Discover Wildlife
Ten photographs that made the world wake up to climate change
What Global Warming?, Cover Story
A Glimpse into the World of Polar Bears - Animal Heroes
Climate change on track to wipe out polar bears within 80 years: research - Global Times
Should There be Polar Bears in Antarctica?
Review: A bear's life tells the history of global warming
The Fuzzy Face of Climate Change - Pacific Standard
So the Frozen Planet polar bear exposes the BBC's sinister ways. Really?, George Monbiot