Scheme of the biogeochemical OCS cycle (IMAGE) Tokyo Institute of Technology Caption Carbonyl sulfide (OCS) in the atmosphere is derived from both oceanic and anthropogenic sources. Credit Shohei Hattori Usage Restrictions Please state the credit. 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.