IEA (2020), Production cost and break-even crude oil price for SAFs compared with fossil jet kerosene, 2019, IEA, Paris https://www.iea.org/data-and-statistics/charts/production-cost-and-break-even-crude-oil-price-for-safs-compared-with-fossil-jet-kerosene-2019-2, Licence: CC BY 4.0