Maritime transport CO2 emissions in United States of America
United States of America: Maritime transport CO2 emissions was 9.33 million Tonnes in 2025. ▲ Rising
Maritime transport CO2 emissions in United States of America, 2019–2025
Source: Organisation for Economic Co-operation and Development. Measured in Tonnes.
Analysis
In 2025, maritime transport co2 emissions in United States of America stood at 9.33 million Tonnes.
That represents a change of down 7.6% on the previous year and up 3.3% over ten years.
That places United States of America 3rd out of 138 countries with data for 2025, putting it in the top 10%.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 9.03 million Tonnes | 9.03 million Tonnes | 9.03 million Tonnes | 1 |
| 2020s | 10.26 million Tonnes | 8.02 million Tonnes | 14.22 million Tonnes | 6 |
Countries ranked near United States of America
More climate change data for United States of America
- Share co2 vs population 4.14 (2100)
- Urban population 80.2% (2025)
- Urban population 274.08 million (2025)
- Urban population growth 0.6% (2025)
- Population, total 341.79 million (2025)
- Population growth 0.5% (2025)
- Annual Net Emissions/Removals 6,164 (2024)
- Temperature change with respect to a baseline climatology 1.95 (2024)
- Per capita CO₂ emissions vs. per capita energy use 14.2 tonnes per person (2024)
- Share global cumulative co2 including land 20.37 (2024)
Frequently asked questions
- What is maritime transport co2 emissions in United States of America?
- Maritime transport co2 emissions in United States of America was 9.33 million Tonnes in 2025, according to Organisation for Economic Co-operation and Development.
- What is the highest maritime transport co2 emissions recorded in United States of America?
- The highest recorded value was 14.22 million Tonnes in 2022.
- What is the lowest maritime transport co2 emissions recorded in United States of America?
- The lowest recorded value was 8.02 million Tonnes in 2020.
- How does United States of America rank for maritime transport co2 emissions?
- United States of America ranks 3rd out of 138 countries with data for 2025.
- Is maritime transport co2 emissions rising or falling in United States of America?
- Over the last ten years it is up 3.3%. The long-run trend across the full record is rising.
- Where does this United States of America data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Maritime transport CO2 emissions (experimental). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 7 observations, free to reuse under OECD Terms and Conditions (attribution required).
About this data
This experimental dataset includes annual, quarterly, and monthly information on carbon dioxide (CO2) emissions from maritime transport based on ship-tracking information collected via Automatic Identification System (AIS) transponders, covering all large vessels (above 300 gross tonnage) around the world, accessed via the United Nations Global Platform, from 2019 onwards. The CO2 emissions are estimated by the OECD, based on a consistent methodology across countries and include emissions from both domestic and international voyages. The CO2 emissions are classified using the ship-type classification used by the International Maritime Organisation (IMO) distinguishing between 19 vessel categories such as bulk carriers, tankers, and cruise ships. The database provides a measure of CO2 emissions on a territory basis for domestic navigation, which is used for reporting in the UN Framework Convention on Climate Change (UNFCCC) inventories; and also on a residence basis, which is used to estimate the emissions of maritime transport (H50 in the International Standard Industrial Classification of All Economic Activities, or ISIC) in the SEEA Air Emission Accounts (AEAs). Seven components of these CO2 emissions measures can be selected from the ‘Vessel emissions ’ filter. In the tables, these are also shown with the letters A, B, C, D, E, F and G. The aggregate measures of CO2 emissions are calculated as: Domestic navigation = A + C International navigation (memo item) = D + G Air emissions accounts: maritime transport (ISIC H50) = A + B + D + E + F For residence based measures, the allocation of emissions to countries is based on the residence of the companies that operate the ships. More information can be found on the dataset webpage