Global Greenhouse Gas Watch (G3W)

The Global Greenhouse Gas Watch (G3W) is a new program from the World Meteorological Organization (WMO) that track greenhouse gas (GHG) emissions and their movement in the atmosphere. It combines data from satellites and ground stations with advanced computer models to give countries reliable, up-to-date and transparent material.
This information will improve the reliability of GHG monitoring, reduce uncertainties and support countries to meet their climate goals thanks to evidence-based decisions – in line with Paris Agreement’s objectives.
G3W is building a stronger global system for collecting and sharing GHG data. This system will give clear and detailed monthly reports on the net fluxes of three key GHG - carbon dioxide (CO₂), methane (CH₄), and nitrous oxide (N₂O) - with a spatial resolution of 1×1 degree, (geographic latitude-longitude grid resolution, about 100x100 km).
This initiative is also instrumental in addressing data gaps in critical regions, thereby enabling a more accurate assessment of global GHG net flux.

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