Waves beating (IMAGE) University of Gothenburg Caption In many fjords, anoxic environments at the bottom result in the production of methane gas. In heavy storms, the water from the bottom is brought up to the surface, resulting in large emissions of methane gas into the atmosphere. Credit R Lindblom Usage Restrictions None License Original 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.