CORAL 1 (IMAGE) Rice University Caption Georgia Tech climate scientist Kim Cobb samples an ancient coral for radiometric dating. She is part of a team of Rice University and Georgia Tech scientists using data from coral fossils to build a record of temperatures in the tropical Pacific Ocean over the last millennium. Credit Cobb Lab 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.