Sea Floor (IMAGE) U.S. National Science Foundation Caption Two back-to-back ocean drilling expeditions will study sea-floor sediments and climate change. Credit Consortium for Ocean Leadership/IODP 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.