Warming Experiment in Tropical Forest (IMAGE) Michigan Technological University Caption Tana Wood measures leaf temperatures with an infrared thermometer in the canopy of a tropical rainforest in Puerto Rico. Credit Molly Cavaleri 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.