Scientists detect huge carbon 'burp' that helped end last ice age

Scientists have found the possible source of a huge carbon dioxide 'burp' that happened some 18,000 years ago and which helped to end the last ice age.

Polar bear population could fall by 30 per cent in a year: study - thestar.com

A mathematical analysis for the first time has uncovered the prospect of a sudden, dramatic decline among Canadian polar bears as they starve to death.