The UN International Civil Aviation Organisation ( ICAO ) has put its hopes on a cap and trade system for international flights to cut emissions. It has proposed an offsetting scheme which would run a voluntary pilot phase from 2021 to 2023 , a voluntary first phase with a fixed agreement on offset emissions from 2035 , and a mandatory first phase from 2024 to 2026 to 27 September to 7 October . More countries can opt to join in after 2024 or 2027, by which point the scheme will be mandatory for all but the smallest countries. The scheme’s viability will be discussed at the next assembly of the ICAO from 2021 to 2023 . The organisation will decide how emissions will be assigned, either individually (per airline company) or sectorally (per participating state).
The UN International Civil Aviation Organisation ( ICAO ) has put its hopes on a cap and trade system for international flights to cut emissions. It has proposed an offsetting scheme which would run a voluntary pilot phase from 2021 to 2023 , a voluntary first phase with a fixed agreement on offset emissions from 2035 , and a mandatory first phase from 2024 to 2026 to 27 September to 7 October . The scheme’s viability will be discussed at the next assembly of the ICAO from 2021 to 2023 . The organisation will decide how emissions will be assigned, either individually (per airline company) or sectorally (per participating state).