What caused this strange code-like pattern to form on an Icelandic lake?
March 13, 2017, 11:07 p.m. by Bryan Nelson
The real message might be a warning about climate change.
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.
Critics weigh in on Al Gore's 'An Inconvenient Sequel'
January 22, 2017, 5:20 p.m. by Michael d'Estries
Debuting at Sundance, the follow-up to the 2007 documentary continues the former vice president's efforts to educate on the climate crisis.
Birds are migrating earlier as global temperatures rise
January 4, 2017, 11:41 a.m. by Jaymi Heimbuch
A new study shows that birds are arriving at breeding grounds earlier — and potentially missing out on food.
Carbon dioxide in Earth's atmosphere just reached a major milestone
September 29, 2016, 9:36 a.m. by Russell McLendon
CO2 data from Mauna Loa in Hawaii suggest 400 ppm is the new normal.
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.