Figures have been rounded. Nâ‚‚O emissions have been converted to carbon-dioxide equivalents over a 100-year timescale using a conversion factor of 273 (as per the IPCC AR6 report).
Global nitrous oxide (N₂O) emissions reached a high of roughly three billion metric tons of carbon dioxide equivalent (GtCO₂e) in 2023. Emissions of N₂O - which has a far greater warming potential than CO₂ - have increased by more than 30 percent since 1990. China is the world's largest emitter of nitrous oxide, followed by India and the United States.
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OWID. (November 21, 2024). Annual nitrous oxide (Nâ‚‚O) emissions worldwide from 1990 to 2023 (in million metric tons of carbon dioxide equivalent) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 19, 2026, from /statistics/1379448/annual-global-nitrous-oxide-emissions/
OWID. "Annual nitrous oxide (Nâ‚‚O) emissions worldwide from 1990 to 2023 (in million metric tons of carbon dioxide equivalent)." Chart. November 21, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 19, 2026. /statistics/1379448/annual-global-nitrous-oxide-emissions/
OWID. (2024). Annual nitrous oxide (Nâ‚‚O) emissions worldwide from 1990 to 2023 (in million metric tons of carbon dioxide equivalent). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 19, 2026. /statistics/1379448/annual-global-nitrous-oxide-emissions/
OWID. "Annual Nitrous Oxide (Nâ‚‚o) Emissions Worldwide from 1990 to 2023 (in Million Metric Tons of Carbon Dioxide Equivalent)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 21 Nov 2024, /statistics/1379448/annual-global-nitrous-oxide-emissions/
OWID, Annual nitrous oxide (Nâ‚‚O) emissions worldwide from 1990 to 2023 (in million metric tons of carbon dioxide equivalent) ÌÇÐÄÆƽâ°æ, /statistics/1379448/annual-global-nitrous-oxide-emissions/ (last visited July 19, 2026)
Annual nitrous oxide (Nâ‚‚O) emissions worldwide from 1990 to 2023 (in million metric tons of carbon dioxide equivalent) [Graph], OWID, November 21, 2024. [Online]. Available: /statistics/1379448/annual-global-nitrous-oxide-emissions/
