The Remote Sensing Lab of IACM participates to the new H2020 project CoCO2 (Prototype system for a Copernicus CO2 service), led by ECMWF (European Centre for Medium-Range Weather Forecasts), aiming to deliver the prototype systems for the new European anthropogenic CO2 emissions monitoring service as part of Copernicus. The activities shall sustain the development of a European capacity for monitoring anthropogenic CO2 emissions. The activities will address all components of the system, such as atmospheric transport models, re-analysis, data assimilation techniques, bottom-up estimation, in-situ networks and ancillary measurements needed to address the attribution of CO2 emissions. The aim is to have prototype systems at the required spatial scales ready by the end of the project as input for the foreseen Copernicus CO2 service element.