Productivity and depth regulate lake contributions to atmospheric methane

Despite significant contributions of inland lakes to the global methane cycle, we lack a process‐based understanding of what regulates inter‐lake variation in methane emissions. Previous comparative work has identified a potential link between lake primary productivity and methane emissions; also, lab‐scale experiments suggest that the addition of algal substrate to anoxic sediments rapidly enhances rates of methanogenesis. This existing work...