b'FLUXES The European Greenhouse Gas BulletinThe Global Greenhouse Gas Watch:Transforming climate change mitigation accountabilityA global effort is under way to provide near real-time data on greenhouse gas concentrations covering all continents. Launching in 2028, the Global Greenhouse Gas Watch (G3W) initiative brings together a global network of satellite operators, surface-based observation systems and modelling expertise to gather the best existing knowledge and technology. In Europe, Copernicus and ICOS are providing the blueprints for the monitoring system.By Charlotta Henry'