Prof. Wei-Jun Cai, University of Delaware (IMAGE) University of Delaware Caption University of Delaware Prof. Wei-Jun Cai, who has done pioneering work on carbon biogeochemistry in estuaries and coastal waters, has been named to the American Geophysical Union's 2017 Class of Fellows. Cai is the Mary A.S. Lighthipe Professor in the College of Earth, Ocean, and Environment. Credit University of Delaware Usage Restrictions Must credit University of Delaware 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.