Laurence Rouil, #CAMS Director, introduces AIFS-COMPO, an experimental system forecasting ozone, particulate matter, aerosol optical depth, nitrogen dioxide and sulphur dioxide up to 10 days ahead, twice the 5-day horizon of the operational forecast. First results suggest it can match or improve forecasts for several species. More info: https://atmosphere.copernicus.eu/new-ai-model-based-cams-atmospheric-composition-system-unveiled