Where Are Arctic Soils Defrosting?

A holey, Swiss cheese-like landscape, thermokarst is distributed widely across the high latitudes of the northern hemisphere.

This image originally appeared in the NASA Earth Observatory story Where Are Arctic Soils Defrosting?.

NASA Earth Observatory maps created by Jesse Allen, using data provided by David Olefeldt, University of Alberta. Caption by Pola Lem.

Published January 18, 2017
Data acquired 1990 - 2010