Arctic Greening Thaws Permafrost, Boosts Runoff (IMAGE) DOE/Los Alamos National Laboratory Caption NGEE-Arctic researchers from Los Alamos, University of Alaska Fairbanks and Oak Ridge National Laboratory dig deep snow pits in tall shrub patches to understand the warming effect of snow-shrub interactions on underlying permafrost. Credit Los Alamos National Laboratory Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.