An observation-constrained assessment of the climate sensitivity and future trajectories of wetland methane emissions.

Wetlands are a major source of methane (CH) and contribute between 30 and 40% to the total CH emissions. Wetland CH emissions depend on temperature, water table depth, and both the quantity and quality of organic matter. Global warming will affect these three drivers of methanogenesis, raising questions about the feedbacks between natural methane production and climate change.