IEA (2021), Global average carbon intensity of electricity generation in the Stated Policies, Sustainable Development and Net Zero scenarios, 2000-2040, IEA, Paris https://www.iea.org/data-and-statistics/charts/global-average-carbon-intensity-of-electricity-generation-in-the-stated-policies-sustainable-development-and-net-zero-scenarios-2000-2040, Licence: CC BY 4.0