The underappreciated importance of small wetlands in global methane emissions

Nature Climate Change, Published online: 08 April 2026; doi:10.1038/s41558-026-02609-wWetland methane emissions are a major source of uncertainty in global emissions estimates. Here the authors use high-resolution remote sensing data to identify small non-forested wetlands and find that they contribute 24% of wetland methane emissions and that these emissions are increasing.