Nitrogen oxide (NOx) emissions from global shipping totaled **** million metric tons worldwide in 2022. That same year saw the global shipping fleet emit *** million metric tons of sulfur dioxide (SO2). Global SO2 emissions from shipping have fallen sharply since 2019, owing to strict new rules on marine fuels introduced by the International Maritime Organization in 2020.
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OWID. (February 12, 2025). Air pollution emissions from shipping worldwide in 2022, by pollutant type (in 1,000 metric tons) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 25, 2026, from /statistics/772915/global-shipping-air-pollutant-emissions/
OWID. "Air pollution emissions from shipping worldwide in 2022, by pollutant type (in 1,000 metric tons)." Chart. February 12, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 25, 2026. /statistics/772915/global-shipping-air-pollutant-emissions/
OWID. (2025). Air pollution emissions from shipping worldwide in 2022, by pollutant type (in 1,000 metric tons). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 25, 2026. /statistics/772915/global-shipping-air-pollutant-emissions/
OWID. "Air Pollution Emissions from Shipping Worldwide in 2022, by Pollutant Type (in 1,000 Metric Tons)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 12 Feb 2025, /statistics/772915/global-shipping-air-pollutant-emissions/
OWID, Air pollution emissions from shipping worldwide in 2022, by pollutant type (in 1,000 metric tons) ÌÇÐÄÆƽâ°æ, /statistics/772915/global-shipping-air-pollutant-emissions/ (last visited July 25, 2026)
Air pollution emissions from shipping worldwide in 2022, by pollutant type (in 1,000 metric tons) [Graph], OWID, February 12, 2025. [Online]. Available: /statistics/772915/global-shipping-air-pollutant-emissions/
