Eddy-Flux tower in Amazon Forest (IMAGE) University of Arizona Caption This eddy-flux tower measures the energy, water and carbon dioxide exchanged between the forest and the atmosphere in Tapajos National Forest in Brazil. The 60-meter-tall tower pokes through the 50-meter-high forest canopy. Credit Joost van Haren, The University of Arizona Usage Restrictions This photo may be used only in conjunction with a story about the research described in this release. 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.