
Bottom Image: This radar image of bedrock elevation reveals the new sub-glacial basin (purple and blue regions). The basin is divided into two components (A and B) and lies just inland of the West Antarctic Ice Sheet's grounding line (black line), where streams of ice flowing toward the Weddell Sea begin to float. Top Image: White box indicates location of bottom image. Pine Island Glacier (PIG) and Thwaites Glacier—two parts of the West Antarctic Ice Sheet previously studied by the U.S. and U.K. researchers—drain into the Amundsen Sea.
Team members at The University of Texas at Austin compared data about the newly discovered basin to data they previously collected from other parts of the WAIS that also appear highly vulnerable, including Pine Island Glacier and Thwaites Glacier. Although the amount of ice stored in the new basin is less than the ice stored in previously studied areas, it might be closer to a tipping point.
"If we were to invent a set of conditions conducive to retreat of the West Antarctic Ice Sheet, this would be it," said Don Blankenship, senior research scientist at The University of Texas at Austin's Institute for Geophysics and co-author on the new paper. "With its smooth bed that slopes steeply toward the interior, we could find no other region in West Antarctica more poised for change than this newly discovered basin at the head of the Filchner-Ronne Ice Shelf. The only saving grace is that losing the ice over this new basin would only raise sea level by a small percentage of the several meters that would result if the entire West Antarctic Ice Sheet destabilized."












Comment: Interesting that the main stream media is slowly letting the news out. Quite a number of real scientists are in agreement that the earth has actually been cooling and that we are due for another ice age in the very near future (among other things!):
Ice Ages Start and End So Suddenly, "It's Like a Button Was Pressed," Say Scientists
Reflections on the Coming Ice Age
'Forget global warming, prepare for Ice Age'
Scientist predicts 'mini Ice Age'