The first deal limiting greenhouse gases from international aviation has been sealed after years of wrangling. From 2020, any increase in airline CO2 emissions will be offset by activities like tree planting, which soak up CO2.
The deal comes in a momentous week for climate policy when the Paris agreement to stabilise climate change passed a key threshold for becoming law. Scientists applauded both commitments, but warned that plans to cut emissions are far too weak.
The aviation deal was agreed in Montreal by national representatives at the International Civil Aviation Organisation, ICAO.