Global shipping CO2 emissions by month 2012-2023

Carbon dioxide emissions from the world's merchant fleet have risen more than 20 percent since 2012. There was a notable decline in emissions in early 2020 after the outbreak of COVID-19, but emissions from the maritime fleet rebounded in the second half of the year. International shipping accounts for around 10 percent of global transportation CO₂ emissions.

Annualized monthly carbon dioxide emissions of the world's maritime fleet from 2012 to 2023 (in million tons)

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Release date

September 2023

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Region

Worldwide

Survey time period

January 2012 to March 2023

Supplementary notes

Figures have been rounded. Includes emissions from tankers, dry bulk and general cargo, container, and "others", which includes vehicles and roll-on/roll-off ships, passenger ships, offshore ships and service and miscellaneous ships.

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Number of ships in the world merchant fleet as of January 1, 2023, by type

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CO₂ emissions in international shipping 2022, by ship type

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Global international shipping CO₂ emissions 1970-2023

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Characteristic	CO₂ emissions in million tons
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Annualized monthly carbon dioxide emissions of the world's maritime fleet from 2012 to 2023 (in million tons)

Other statistics on the topicShipping emissions worldwide

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Shipping emissions worldwide

Characteristic	CO₂ emissions in million tons
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