I. Altshuler, Frontiers (IMAGE) Frontiers Caption Co-author I. Altshuler sampling permafrost terrain near the McGill Arctic research station, Canadian high Arctic. Credit Dr Jacqueline Goordial 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.