China was the ship-owning country with the highest carbon dioxide emissions in 2022, at 102 million metric tons (MtCO₂). Japan followed closely in second place, with emissions of 101 MtCO₂. While emissions from vessels owned by Japan increased by 1.6 percent between 2012 and 2022, those produced by China-owned ships increased by 135 percent. The 10 ship-owning countries with the highest emissions in 2022 produced more than 500 MtCO₂.
Maritime sector carbon dioxide (CO₂) emissions in 2022, by vessel ownership country
(in million metric tons)
Carbon dioxide emissions from vessels’ main and auxiliary engines, calculated based on bunker fuel from the Automatic Identification System. Figures have been rounded.
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UNCTAD. (September 27, 2023). Maritime sector carbon dioxide (CO₂) emissions in 2022, by vessel ownership country (in million metric tons) [Graph]. In Statista. Retrieved December 21, 2024, from https://www.statista.com/statistics/1487738/shipping-emissions-worldwide-ship-owning-countries/
UNCTAD. "Maritime sector carbon dioxide (CO₂) emissions in 2022, by vessel ownership country (in million metric tons)." Chart. September 27, 2023. Statista. Accessed December 21, 2024. https://www.statista.com/statistics/1487738/shipping-emissions-worldwide-ship-owning-countries/
UNCTAD. (2023). Maritime sector carbon dioxide (CO₂) emissions in 2022, by vessel ownership country (in million metric tons). Statista. Statista Inc.. Accessed: December 21, 2024. https://www.statista.com/statistics/1487738/shipping-emissions-worldwide-ship-owning-countries/
UNCTAD. "Maritime Sector Carbon Dioxide (Co₂) Emissions in 2022, by Vessel Ownership Country (in Million Metric Tons)." Statista, Statista Inc., 27 Sep 2023, https://www.statista.com/statistics/1487738/shipping-emissions-worldwide-ship-owning-countries/
UNCTAD, Maritime sector carbon dioxide (CO₂) emissions in 2022, by vessel ownership country (in million metric tons) Statista, https://www.statista.com/statistics/1487738/shipping-emissions-worldwide-ship-owning-countries/ (last visited December 21, 2024)
Maritime sector carbon dioxide (CO₂) emissions in 2022, by vessel ownership country (in million metric tons) [Graph], UNCTAD, September 27, 2023. [Online]. Available: https://www.statista.com/statistics/1487738/shipping-emissions-worldwide-ship-owning-countries/
