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  • Writer's pictureGustavo Bernal Torres

IEA's Global Energy Review: CO2 Emissions in 2021

Global CO2 emissions rebounded in 2021 reaching their highest ever annual level. A 6% increase from 2020 levels.

  • 2021 pushed emissions to 36.3 gigatonnes (Gt), an estimate based on the IEA’s detailed region-by-region and fuel-by-fuel analysis, drawing on the latest official national data and publicly available energy, economic and weather data.

  • Spiking natural gas prices resulted in gas-to-coal switching, CO2 emissions from coal rose to all-time high. Renewable power also posted its biggest ever increase in 2021.



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