Thomas Crowther, ETH Zurich (IMAGE) ETH Zurich Caption Thomas Crowther, Assistant Professor Environmental Systems Science, ETH Zurich, Switzerland. Credit Crowther Lab / ETH Zurich 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.