Methane Bubbles Trapped in Frozen Thermokarst Lake (image) Desert Research Institute Share Print E-Mail Caption Methane gas bubbles are seen here trapped in the ice of a frozen thermokarst lake, which has an active methane seep. This gas is released into the Arctic atmosphere from both the frozen layer and the underlying waters during the spring thaw. Credit Kevin Hand, NASA Jet Propulsion Laboratory Usage Restrictions None Share Print E-Mail 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.