Maritime transport CO2 emissions in United Kingdom of Great Britain and Northern Ireland

United Kingdom of Great Britain and Northern Ireland: Maritime transport CO2 emissions was 1.91 million Tonnes in 2025. ▲ Rising

Latest (2025)
1.91 million Tonnes
Change on year
down 8.3%
World rank
16th
of 138 countries
All-time high
2.80 million Tonnes
in 2022
All-time low
1.71 million Tonnes
in 2019
Years of data
7
2019–2025

Maritime transport CO2 emissions in United Kingdom of Great Britain and Northern Ireland, 2019–2025

01.0M2.0M3.0M2019202220252019: 1.7M Tonnes2020: 1.7M Tonnes2021: 1.9M Tonnes2022: 2.8M Tonnes2023: 2.0M Tonnes2024: 2.1M Tonnes2025: 1.9M Tonnes

Source: Organisation for Economic Co-operation and Development. Measured in Tonnes.

Analysis

United Kingdom of Great Britain and Northern Ireland recorded 1.91 million Tonnes for maritime transport co2 emissions in 2025.

The figure is down 8.3% on the previous year and up 12.3% over ten years.

United Kingdom of Great Britain and Northern Ireland ranks 16th of 138 countries on this measure, in the top quarter.

Averages by decade

DecadeAverage LowestHighest Years
2010s 1.71 million Tonnes 1.71 million Tonnes 1.71 million Tonnes 1
2020s 2.07 million Tonnes 1.74 million Tonnes 2.80 million Tonnes 6

Countries ranked near United Kingdom of Great Britain and Northern Ireland

  1. 13 Italy 2.21 million Tonnes compare
  2. 14 Saudi Arabia 2.05 million Tonnes compare
  3. 15 Indonesia 1.95 million Tonnes compare
  4. 17 Mexico 1.50 million Tonnes compare
  5. 18 France 1.28 million Tonnes compare
  6. 19 Egypt 1.20 million Tonnes compare

See the full ranking of 160 places →

More climate change data for United Kingdom of Great Britain and Northern Ireland

All data for United Kingdom of Great Britain and Northern Ireland →

Frequently asked questions

What is maritime transport co2 emissions in United Kingdom of Great Britain and Northern Ireland?
Maritime transport co2 emissions in United Kingdom of Great Britain and Northern Ireland was 1.91 million Tonnes in 2025, according to Organisation for Economic Co-operation and Development.
What is the highest maritime transport co2 emissions recorded in United Kingdom of Great Britain and Northern Ireland?
The highest recorded value was 2.80 million Tonnes in 2022.
What is the lowest maritime transport co2 emissions recorded in United Kingdom of Great Britain and Northern Ireland?
The lowest recorded value was 1.71 million Tonnes in 2019.
How does United Kingdom of Great Britain and Northern Ireland rank for maritime transport co2 emissions?
United Kingdom of Great Britain and Northern Ireland ranks 16th out of 138 countries with data for 2025.
Is maritime transport co2 emissions rising or falling in United Kingdom of Great Britain and Northern Ireland?
Over the last ten years it is up 12.3%. The long-run trend across the full record is rising.
Where does this United Kingdom of Great Britain and Northern Ireland 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.

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Maritime transport CO2 emissions in United Kingdom of Great Britain and Northern Ireland. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 21 August 2026, from https://climate.statizoid.com/stat/maritime-transport-co2-emissions-experimental/united-kingdom/

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About this data

Indicator
Maritime transport CO2 emissions (experimental)
Unit
Tonnes
Source
Organisation for Economic Co-operation and Development
Licence
OECD Terms and Conditions (attribution required)
Coverage
160 places, 1,105 data points, 2019–2025
Last refreshed

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