Sarah Elise Sapper (IMAGE) University of Copenhagen - Faculty of Science Caption Sarah Elise Sapper directed the helicopter pilot to land close to the glacier edge to measure the methane in whirlpools of meltwater streaming out. Photo: Sarah Elise Sapper Credit Sarah Elise Sapper Usage Restrictions Proper credits and use in context of research License Original 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.