Annual emissions of carbon dioxide (CO2) from private aviation increased by 46% between 2019 and 2023, according to an analysis published in Communications Earth & Environment. The results also show that some individuals who regularly use private aviation may produce almost 500 times more CO2 in a year than the average individual, and that there were significant emissions peaks around certain international events, including COP 28 (2023 United Nations Climate Change Conference), and the 2022 FIFA World Cup.