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Climate-driven permafrost thaw

Fri, 17 Feb 2017 16:10:21 EST ~ In bitter cold regions like northwestern Canada, permafrost has preserved relict ground-ice and vast glacial sedimentary stores in a quasi-stable state. These landscapes therefore retain a high potential for climate-driven transformation, say researchers. Find out more...

Local weather impacts melting of one of Antarctica's fastest-retreating glaciers

Fri, 17 Feb 2017 10:00:56 EST ~ Local weather plays an important part in the retreat of the ice shelves in West Antarctica, according to new research. Find out more...

Underwater seagrass beds dial back polluted seawater

Thu, 16 Feb 2017 14:39:24 EST ~ Seagrass meadows -- bountiful underwater gardens that nestle close to shore and are the most common coastal ecosystem on Earth -- can reduce bacterial exposure for corals, other sea creatures and humans, according to new research. Find out more...

Whale-ship collisions

Thu, 16 Feb 2017 10:39:38 EST ~ Scientists and government officials met at the United Nations today to consider possible solutions to a global problem: how to protect whale species in their most important marine habitats that overlap with shipping lanes vital to the economies of many of the world's nations. Find out more...

How an Ice Age paradox could inform sea level rise predictions

Wed, 15 Feb 2017 13:15:51 EST ~ New research findings explain an Ice Age paradox and add to the mounting evidence that climate change could bring higher seas than most models predict. Find out more...

Global ocean de-oxygenation quantified

Wed, 15 Feb 2017 13:15:46 EST ~ The ongoing global change causes rising ocean temperatures and changes the ocean circulation. Therefore less oxygen is dissolved in surface waters and less oxygen is transported into the deep sea. This reduction of oceanic oxygen supply has major consequences for the organisms in the ocean. Scientists have now published the most comprehensive analysis on oxygen loss in the world's oceans and their cause so far. Find out more...

Scientists report ocean data from under Greenland's Petermann Glacier

Wed, 15 Feb 2017 12:11:15 EST ~ Based on data from the first ocean sensors deployed under Greenland's Petermann Glacier, researchers report that the floating ice shelf is strongly coupled, or tied, to the ocean below and to the adjacent Nares Strait. Warming temperatures recorded at the deepest ocean sensors match data from Nares Strait, which connects the Arctic and Atlantic oceans. Find out more...

New pathway for Greenland meltwater to reach ocean

Wed, 15 Feb 2017 12:10:32 EST ~ Cracks in the Greenland Ice Sheet let one of its aquifers drain to the ocean, new NASA research finds. The aquifers, discovered only recently, are unusual in that they trap large amounts of liquid water within the ice sheet. Until now, scientists did not know what happened to the water stored away in this reservoir -- the discovery will help fine tune computer models of Greenland's contribution to sea level rise. Find out more...

Risk of rapid North Atlantic cooling in 21st century greater than previously estimated

Wed, 15 Feb 2017 08:44:46 EST ~ The possibility of major climate change in the Atlantic region has long been recognized and has even been the subject of a Hollywood movie: The Day After Tomorrow. To evaluate the risk of such climate change, researchers developed a new algorithm to analyze the 40 climate models considered by the latest report from the Intergovernmental Panel on Climate Change (IPCC). Their findings raise the probability of rapid North Atlantic cooling during this century to nearly 50%. Find out more...

Canadian glaciers now major contributor to sea level change, study shows

Wed, 15 Feb 2017 08:41:19 EST ~ Ice loss from Canada's Arctic glaciers has transformed them into a major contributor to sea level change, new research has found. From 2005 to 2015, surface melt off ice caps and glaciers of the Queen Elizabeth Islands grew by an astonishing 900 percent. Find out more...