IEA (2023), Global primary energy intensity improvements in the Net Zero Emissions by 2050 Scenario, 2022 and 2030, IEA, Paris https://www.iea.org/data-and-statistics/charts/global-primary-energy-intensity-improvements-in-the-net-zero-emissions-by-2050-scenario-2022-and-2030, Licence: CC BY 4.0