Coastal Sea Ice (IMAGE) University of California - Santa Cruz Caption The formation of coastal sea ice, seen here in the Arctic Ocean, plays an important role in driving "overturning circulation" in the North Pacific Ocean. Credit Karla Knudson Usage Restrictions For use only with news coverage of this research. 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.