Climate – Getting to the root (IMAGE) DOE/Oak Ridge National Laboratory Caption Fine roots from a larch tree peek out from a pile of peat excavated from an experimental warming plot in the SPRUCE experiment in Northern Minnesota. Credit Colleen Iversen/ORNL, U.S. Dept. of Energy Usage Restrictions none License Original 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.