Fig. 2 (IMAGE) Aarhus University Caption The annual mean methane emission (divided into diffusion and ebullition) from different experimental treatments within the mesocosm. High and low nutrient levels and then three temperature levels - AMB is ambient temperature, A2 is +2-3 degrees C and A2+ is +4-5 degrees C. Credit Thomas A. Davidson 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.