Degrading ice wedges reshape Arctic landscape

Fairbanks AK (SPX) Mar 17, 2016

Ice wedges, a common subsurface feature in permafrost landscapes, appear to be rapidly melting throughout the Arctic, according to a new study published in the journal Nature Geoscience. The wedges, which can be the size of a house, gradually formed over hundreds or even thousands of years as water seeped into permafrost cracks. On the ground surface, they form polygon shapes roughly 15-30 meter —> Read More