An international team of scientists has found part of the world’s largest ice shelf is melting 10 times faster than the overall ice shelf average due to solar heating of the surrounding ocean surface.

Substantial variations in past sea ice cover in the Norwegian Sea were instrumental for several abrupt climate changes in large parts of the world, researchers have found. 

The filling and draining of meltwater lakes has been found to cause a floating Antarctic ice shelf to flex, potentially threatening its stability.

The first-ever tally of polar bears off the western coast of Alaska offers some good news: they're healthy and relatively abundant.