The Corsia timeline
ICAO agrees to offset emissions growth
from 2021 in approach known as "Corsia"
ICAO council adopts "SARPs"
(Standards and Recommended Practices),
laying out criteria for Corsia offsets
All ICAO members start monitoring
and reporting emissions from
Corsia begins voluntary pilot phase
Corsia begins voluntary first phase
Corsia begins mandatory second phase,
with exemptions for some small emitters
ICAO reviews if Corsia should be ended,
extended or improved after 2035
Second phase ends