Plants -- Surviving the heat (IMAGE) DOE/Oak Ridge National Laboratory Caption ORNL's Jeffrey Warren (left) and Anirban Guha used a climate-controlled test chamber to simulate heat waves that peaked above 120 F and analyzed the impact on certain tree species. Credit Genevieve Martin/Oak Ridge National Laboratory, U.S. Dept. of Energy 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.