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Global Energy Review: CO2 Emissions in 2021

Global emissions rebound sharply to highest ever level

Last updated March 2022

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The global CO2 emissions and energy demand numbers are 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. Combined with the methane emissions estimates published by the IEA and estimates of nitrous oxide and flaring related CO2 emissions, this new analysis shows that overall greenhouse gas emissions from energy rose to their highest ever level in 2021.

CO2 Emission in 2021

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  • Global data
    08/03/2022

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  • 08/03/2022
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    Global Data