Peter Roopnarine (IMAGE) California Academy of Sciences Caption Academy Curator of Geology Peter Roopnarine, PhD, focuses on global change biology, and how we can further develop our understanding of Earth's past ecosystems to better forecast our future. (California Academy of Sciences © Kathryn Whitney) Credit California Academy of Sciences © Kathryn Whitney Usage Restrictions Editorial usage permitted as long as appropriately credited. License Original 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.