Frozen Methane Bubbles (IMAGE) Florida State University Caption Methane bubbles trapped in lake ice during the first few days of ice formation on a Siberian thermokarst lake. Credit Courtesy of Jeff Chanton, FSU Oceanography Department Usage Restrictions For News and Educational Purposes only. 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.