Biosphere 2 Pine Experiment Begins (IMAGE) University of Arizona Caption University of Arizona ecologist Henry Adams prepares to move a mature pine tree transported from New Mexico into Biosphere 2, seen in the background, for a climate-controlled experiment on how temperature affects drought-stressed trees. Credit Joe Martinez, Biosphere 2, University of Arizona Usage Restrictions Credit the photographer 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.