Earth's Early Ocean was Cool, not Hot (VIDEO) Stanford University This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Stanford researchers blasted ancient ocean floor rocks with lasers to boil out the isotopes that provided critical clues about the temperature of the ancient ocean. The early global sea turns out to have been tepid, not a hot primordial soup as had been thought. Credit Jack Hubbard, Stanford University News Service 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.