Seagrass (IMAGE) Helmholtz-Zentrum Hereon Caption In some cases, seagrass absorbs significantly less carbon dioxide than long thought. Credit Hereon/Bryce van Dam Usage Restrictions Helmholtz-Zentrum Hereon/Bryce van Dam 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.