These figures appear in the Global Carbon Project's 2021 release. For additional details, and explanations of all figures, please view the full presentation available here. For alternative visualisations of our data, see the Global Carbon Atlas and Our World in Data.

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If you're just tweeting a figure or using a figure in a presentation, then it already says at the bottom that it's by the Global Carbon Project, so you're good to go! If you use the data or modify the figure then you will need to make a little more effort.
For details on the license, visit the Creative Commons website. Suggested citation for use in a book: "Used with permission of the Global Carbon Project under the Creative Commons Attribution 4.0 International license."

To download figures or data, use the Download menu to the upper right of each figure. The precision provided in the data files is not indicative of certainty. For example, the data file says that global emissions in 2020 were 34.80726 GtCO2, but this should be quoted as 34.8 GtCO2. CSV data files have been prepared for many but not all figures on this page.