Ships registered under the Liberia flag produced 116 million metric tons of carbon dioxide (MtCO₂) in 2022. This was the highest emissions among the world's shipping flag states that year. Since 2012, CO₂ emissions from ships registered under the Liberia flag have increased by more than 35 percent. In total, the 10 most polluting flag states emitted almost 600 MtCO₂ in 2022.
Carbon dioxide emissions from ships registered under select major flag states worldwide in 2022
(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). Carbon dioxide emissions from ships registered under select major flag states worldwide in 2022 (in million metric tons) [Graph]. In Statista. Retrieved December 21, 2024, from https://www.statista.com/statistics/1487730/shipping-emissions-worldwide-flag-state/
UNCTAD. "Carbon dioxide emissions from ships registered under select major flag states worldwide in 2022 (in million metric tons)." Chart. September 27, 2023. Statista. Accessed December 21, 2024. https://www.statista.com/statistics/1487730/shipping-emissions-worldwide-flag-state/
UNCTAD. (2023). Carbon dioxide emissions from ships registered under select major flag states worldwide in 2022 (in million metric tons). Statista. Statista Inc.. Accessed: December 21, 2024. https://www.statista.com/statistics/1487730/shipping-emissions-worldwide-flag-state/
UNCTAD. "Carbon Dioxide Emissions from Ships Registered under Select Major Flag States Worldwide in 2022 (in Million Metric Tons)." Statista, Statista Inc., 27 Sep 2023, https://www.statista.com/statistics/1487730/shipping-emissions-worldwide-flag-state/
UNCTAD, Carbon dioxide emissions from ships registered under select major flag states worldwide in 2022 (in million metric tons) Statista, https://www.statista.com/statistics/1487730/shipping-emissions-worldwide-flag-state/ (last visited December 21, 2024)
Carbon dioxide emissions from ships registered under select major flag states worldwide in 2022 (in million metric tons) [Graph], UNCTAD, September 27, 2023. [Online]. Available: https://www.statista.com/statistics/1487730/shipping-emissions-worldwide-flag-state/
