b'FLUXES The European Greenhouse Gas BulletinDr Richard EngelenDeputy Director of the Copernicus Atmosphere Monitoring Service (CAMS) at ECMWFLocation: Bonn, GermanyResearch topic: Atmospheric compositionWhat do you like most about your work? I manage the implementation of the new CAMS emission monitoring services, which requires both state-of-the-art science and interaction with users. Managing these two aspects is what I really enjoy doing.What have you learned from working in the CoCO2 project? Improving the required science and technology is critical for the success of the new emission monitoring services, but the endeavour will fail without continuous interaction with the many potential user communities.'