Assuming a pre-industrial mole fraction of 278.3 ppm for COâ‚‚, 729.2 ppb for CH4 and 270.1 ppb for Nâ‚‚O. The number of stations used for the analyses was 147 for COâ‚‚, 149 for CH4 and 108 for Nâ‚‚O.
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Global increase in abundance of key greenhouse gases 1750-2023
Since the industrial revolution began, the atmospheric abundance of key greenhouse gases have increased substantially. As of 2023, the globally averaged atmospheric abundance of carbon dioxide (COâ‚‚) had increased by *** percent, relative to 1750. Meanwhile, the abundance of methane (CH4) had shot up by more than *** percent.
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World Meteorological Organization. (November 15, 2024). Increase in global greenhouse gas abundance in 2023 relative to 1750, by gas [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 29, 2026, from /statistics/276596/increase-in-global-greenhouse-gas-abundance/
World Meteorological Organization. "Increase in global greenhouse gas abundance in 2023 relative to 1750, by gas." Chart. November 15, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 29, 2026. /statistics/276596/increase-in-global-greenhouse-gas-abundance/
World Meteorological Organization. (2024). Increase in global greenhouse gas abundance in 2023 relative to 1750, by gas. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 29, 2026. /statistics/276596/increase-in-global-greenhouse-gas-abundance/
World Meteorological Organization. "Increase in Global Greenhouse Gas Abundance in 2023 Relative to 1750, by Gas." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 15 Nov 2024, /statistics/276596/increase-in-global-greenhouse-gas-abundance/
World Meteorological Organization, Increase in global greenhouse gas abundance in 2023 relative to 1750, by gas ÌÇÐÄÆƽâ°æ, /statistics/276596/increase-in-global-greenhouse-gas-abundance/ (last visited July 29, 2026)
Increase in global greenhouse gas abundance in 2023 relative to 1750, by gas [Graph], World Meteorological Organization, November 15, 2024. [Online]. Available: /statistics/276596/increase-in-global-greenhouse-gas-abundance/
