For Version 4 (data through 2022)

• Data source: Table 2. Global Radiative Forcing, CO2-equivalent mixing ratio, and the AGGI 1979-2022

— Link: https://gml.noaa.gov/aggi/aggi.html

— Archive thereof: https://web.archive.org/web/20230524133553/https://gml.noaa.gov/aggi/aggi.html

— Reference wikicode:
<ref name=NOAA_AGGI_2022>{{cite web |title=The NOAA Annual Greenhouse Gas Index (AGGI) |url=https://gml.noaa.gov/aggi/aggi.html |website=NOAA.gov |publisher=National Oceanic and Atmospheric Administration (NOAA) |archive-url=https://web.archive.org/web/20230524133553/https://gml.noaa.gov/aggi/aggi.html |archive-date=24 May 2023 |date=Spring 2023 |url-status=live }}</ref>

For Versions 2–3 (data through 2021)

• Data source: Table 2 of "THE NOAA ANNUAL GREENHOUSE GAS INDEX (AGGI)"

— Link: https://gml.noaa.gov/aggi/aggi.html

— Archive thereof: https://web.archive.org/web/20230416202714/https://gml.noaa.gov/aggi/aggi.html

— Reference wikicode:
<ref name=NOAA_AGGI_2021>{{cite web |title=The NOAA Annual Greenhouse Gas Index (AGGI) |url=https://gml.noaa.gov/aggi/aggi.html |website=NOAA.gov |publisher=National Oceanic and Atmospheric Administration (NOAA) |archive-url=https://web.archive.org/web/20230416202714/https://gml.noaa.gov/aggi/aggi.html |archive-date=16 April 2023 |date=Spring 2022 |url-status=live }}</ref>

For Version 1 (data through 2019 only)

• Data source: ● Climate Change Indicators: Climate Forcing. EPA.gov. United States Environmental Protection Agency (2021). Archived from the original on May 9, 2021. ● EPA credits data from NOAA's Annual Greenhouse Gas Index (An Introduction). NOAA.gov. National Oceanic and Atmospheric Administration (Global Monitoring Laboratory, Earth System Research Laboratories) (December 2020). Archived from the original on May 13, 2021.
• Archives thereof:

https://web.archive.org/web/20210509084918/https://www.epa.gov/climate-indicators/climate-change-indicators-climate-forcing

https://web.archive.org/web/20210513163545/https://gml.noaa.gov/aggi/

• Sourced content is believed to be originated by employees of the U.S. government in the ordinary course of their employment.

Technical notes

• Most of the XML code for this svg was automatically generated by the "column graphs" spreadsheet linked at User:RCraig09/Excel to XML for SVG. Uploader manually made minor changes to vertical grid lines and text position of Version 1.

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