Rebecca Murphy, Johns Hopkins University (IMAGE) Johns Hopkins University Caption Rebecca Murphy, lead author of the Chesapeake Bay study, is a doctoral student in the Department of Geography and Environmental Engineering at Johns Hopkins. Credit Tim Murphy Usage Restrictions None 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.