Timothy Lyons, UC Riverside (IMAGE) University of California - Riverside Caption Timothy Lyons is a distinguished professor of biogeochemistry in the Department of Earth Sciences at UC Riverside. Credit I. Pittalwala, UC Riverside. 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.