Sunday, October 12, 2014

New paper finds West Antarctic glacier likely melting from geothermal heat below

Via the Hockey Schtick – A paper published today in Earth and Planetary Science Letters finds evidence that one of the largest glaciers in West Antarctica, the Thwaites Glacier, is primarily melting from below due to geothermal heat flux from volcanoes located along the West Antarctic Volcanic Rift System, i.e. not due to man-made CO2. - Watts Up With That?

...The West Antarctic Volcanic Rift System is illustrated by JoNova below, and just so happens to correspond to the areas of notable glacier melt and alleged warming. In contrast, East Antarctica, which holds > 80% of Antarctic ice mass and does not have any known underlying volcanoes, is significantly increasing in ice mass.

The paper joins several others finding geothermal heat largely if not entirely responsible for glacier melt in multiple regions in both Antarctica and Greenland, i.e. not anthropogenic....