Highlights in the article
•Investigates air transport demand on global, regional, national and individual scales.
•Estimates that only 2% to 4% of global population flew internationally in 2018.
•Finds that 1% of world population emits 50% of CO2 from commercial aviation.
•Suggests that emissions from private air travel can amount to 7,500 t CO2 per year.
•Affirms that current climate policy regime for aviation is inadequate.