Study directly links greenhouse gas emissions with polar bear decline, UW professor says
Wyoming Professor's Proof: Emissions Harm Polar Bear Cubs
Coal – Coyote Gulch
Pets & Wildlife - Page 14 - The Columbian
Climate Change Denialists Say Polar Bears Are Fine. Scientists Are Pushing Back. - The New York Times
Pets & Wildlife - Page 21 - The Columbian
PDF) Polar bears: proceedings of the 18th working meeting of the IUCN/SSC Polar Bear Specialist Group, Anchorage, Alaska, 7-11 June 2016
Wyoming Professor's Proof: Emissions Harm Polar Bear Cubs
Greenhouse Gas Inventory, Sustainability
Study quantifies link between greenhouse gases, polar bear survival
Greenland - Ice-Blog - DW.COM