Editing Methane emissions (anthropogenic) (section)

== Monitoring and Measurement ==
Monitoring of anthropogenic methane emissions relies on a combination of atmospheric measurements, emission inventories, and modeling approaches. Key institutions involved include the United Nations Framework Convention on Climate Change (UNFCCC), which collects national and facility-level emission reports, and the National Oceanic and Atmospheric Administration ([https://en.wikipedia.org/wiki/National_Oceanic_and_Atmospheric_Administration NOAA]) Global Monitoring Laboratory, which provides atmospheric methane concentration trends. Additional data sources include the Emissions Database for Global Atmospheric Research (EDGAR) and scientific assessments such as the Intergovernmental Panel on Climate Change ([https://en.wikipedia.org/wiki/Intergovernmental_Panel_on_Climate_Change IPCC]) reports. Measurement methods encompass ground-based sampling, remote sensing from satellites and aircraft, and atmospheric inversion modeling to estimate emissions from observed methane concentrations.

Within the SIGNAL system, anthropogenic methane emissions are treated as a defined environmental signal whose boundaries and measurement conventions are described below.