Carbon dioxide emissions from international shipping worldwide from 1970 to 2023 (in million metric tons)

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Release date

September 2024

Region

Worldwide

Survey time period

1970 to 2023

Supplementary notes

Figures have been rounded.

Citation formats

Global international shipping CO₂ emissions 1970-2023

Published by Lucía Fernández, Nov 28, 2025

International shipping carbon dioxide emissions increased *** percent in 2023, to *** million metric tons (MtCO₂). This was the third-consecutive year that international shipping emissions increased, continuing to rebound from the COVID-19-related slump in 2020. Annual international shipping CO₂ emissions have roughly doubled since 1990, and now account for roughly ** percent of global transportation CO₂ emissions.

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