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. 2023;4(4):205-206.
doi: 10.1038/s43017-023-00406-z. Epub 2023 Mar 13.

Monitoring global carbon emissions in 2022

Zhu Liu  1 , Zhu Deng  2 , Steve Davis  3 , Philippe Ciais  4   5
Affiliations

Monitoring global carbon emissions in 2022

Zhu Liu et al. Nat Rev Earth Environ. 2023.

Abstract

Global CO2 emissions for 2022 increased by 1.5% relative to 2021 (+7.9% and +2.0% relative to 2020 and 2019, respectively), reaching 36.1 GtCO2. These 2022 emissions consumed 13%-36% of the remaining carbon budget to limit warming to 1.5 °C, suggesting permissible emissions could be depleted within 2-7 years (67% likelihood).

Keywords: Climate-change impacts; Climate-change mitigation.

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Conflict of interest statement

Competing interestsThe authors declare no competing interests.

Figures

Fig. 1
Fig. 1. Global CO2 emissions 1970–2022.
Historical CO2 emissions from fossil fuel combustion and the process of cement production (‘Fossil CO2’) coloured by industry sector, and those with land-use change (LUC) emissions (‘Fossil + LUC’). International bunkers describe emissions from international aviation and international shipping. The inset displays daily near-real-time CO2 emissions since 2019 from the Carbon Monitor, initiative and year-on-year percent changes. Note that total emissions and percent changes have been revised slightly from earlier estimates. Global CO2 emissions continue to grow after a brief decline in 2020, which if it persists, it will use up the remaining 1.5 °C carbon budget within 2–7 years.
See this image and copyright information in PMC

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