Restoring Drained Ground to Wetland (IMAGE) University of Gothenburg Caption Restoring drained ground to wetland reduces the release of both carbon dioxide and nitrous oxide from the ground. Credit Photo: Karin Hjerpe. 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.