Jianwu Tang (IMAGE) Marine Biological Laboratory Caption Jianwu Tang measures greenhouse gas emissions from a salt marsh on Cape Cod, Massachusetts in 2013. Credit Jianwu Tang Usage Restrictions Please use with proper 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.