Studienautor (IMAGE) University of Bonn Caption Felix Holtkamp von der Universität Bonn hat in seiner Promotion Verfahren untersucht, mit denen sich die Methanemissionen von Gülle verringern lassen. Credit Foto: Felix Holtkamp / Universität Bonn Usage Restrictions Please use this picture only in connection with the press release. 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.