ATR -Internship - CO2 calculator F/M
), par les ONG (Atmosfair, Myclimate), les régulateurs (DGAC, OACI, EASA, Eurocontrol), les analystes marché (Cirium, IBA... (DGAC, ICAO, EASA, Eurocontrol), appraisers (Cirium, IBA). The diversity of results is quite large, depending on the sources...