The Global Methane Observing System is designed to track climate feedbacks for verifiable climate impact. The article was published in the journal Science, Volume 391, Number 6792, Pages 1324-1327, in March 2026. The system enables accurate measurement of methane emissions from various sources. It tracks feedbacks such as the release of methane from wetlands and permafrost due to warming. It provides data to verify global commitments to reduce methane emissions. These observations help quantify methane's effect on global warming. The system integrates satellite and ground measurements for comprehensive global coverage. The main finding is the need for such a system for reliable monitoring of climate change.