What are megaslumps, and how do they threaten our planet?
March 2, 2017, 9:56 a.m. by Bryan Nelson
So-called 'gateways to the underworld' opening up across the Arctic are an ominous consequence of global warming.
Scientists propose giant air conditioning system to 'refreeze' the Arctic
February 16, 2017, 6:46 a.m. by Bryan Nelson
The ambitious plan could add an average of 3.2 feet to the thickness of Arctic sea ice.
2016 was the Arctic's warmest year on record 'by far'
December 22, 2016, 1:07 p.m. by Russell McLendon
The heat may lead to record-low sea ice in 2017, scientists warn, which could let the Arctic warm up even more.
This Canadian town hosts over 1,000 polar bears every year
November 15, 2016, 11:35 a.m. by Michael d'Estries
The annual migration of the polar bears through Churchill, Manitob,a is documented in the new series 'Polar Bear Town.'
Extinct smallpox virus could be resurrected by global warming
August 22, 2016, 1:11 a.m. by Bryan Nelson
Melting permafrost threatens to exhume a smallpox graveyard in Siberia, and it could be a sign of what's to come.
Greenland tourism hub showcases natural beauty, perilously fast-melting glacier
July 12, 2016, 7 a.m. by Matt Hickman
Ilulissat Icefjord Centre offers 'front-row seat for a melting ice sheet.'
Teens brave the Arctic to convince world leaders to put kids first
December 11, 2015, 4:34 p.m. by Enrique Gili
A Norwegian TV show chronicles the efforts of 4 teens to raise awareness of climate change.