Maritime transport CO2 emissions in Cook Islands

Cook Islands: Maritime transport CO2 emissions was 3,906 Tonnes in 2025. ◆ Volatile

Latest (2025)
3,906 Tonnes
Change on year
up 132.6%
World rank
123rd
of 138 countries
All-time high
7,023 Tonnes
in 2020
All-time low
595.41 Tonnes
in 2021
Years of data
7
2019–2025

Maritime transport CO2 emissions in Cook Islands, 2019–2025

02.0k4.0k6.0k8.0k2019202220252019: 6.2k Tonnes2020: 7.0k Tonnes2021: 595.4 Tonnes2022: 2.5k Tonnes2023: 2.8k Tonnes2024: 1.7k Tonnes2025: 3.9k Tonnes

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

Analysis

In 2025, maritime transport co2 emissions in Cook Islands stood at 3,906 Tonnes.

The figure is up 132.6% on the previous year and down 37.3% over ten years.

Cook Islands ranks 123rd of 138 countries on this measure, in the bottom quarter.

Averages by decade

DecadeAverage LowestHighest Years
2010s 6,226 Tonnes 6,226 Tonnes 6,226 Tonnes 1
2020s 3,074 Tonnes 595.41 Tonnes 7,023 Tonnes 6

Countries ranked near Cook Islands

  1. 120 Saint Lucia 6,739 Tonnes compare
  2. 121 Hong Kong (China) 5,669 Tonnes compare
  3. 122 Paraguay 4,310 Tonnes compare
  4. 124 Tonga 3,844 Tonnes compare
  5. 125 Monaco 3,552 Tonnes compare
  6. 126 Montenegro 2,958 Tonnes compare

See the full ranking of 160 places →

More climate change data for Cook Islands

All data for Cook Islands →

Frequently asked questions

What is maritime transport co2 emissions in Cook Islands?
Maritime transport co2 emissions in Cook Islands was 3,906 Tonnes in 2025, according to Organisation for Economic Co-operation and Development.
What is the highest maritime transport co2 emissions recorded in Cook Islands?
The highest recorded value was 7,023 Tonnes in 2020.
What is the lowest maritime transport co2 emissions recorded in Cook Islands?
The lowest recorded value was 595.41 Tonnes in 2021.
How does Cook Islands rank for maritime transport co2 emissions?
Cook Islands ranks 123rd out of 138 countries with data for 2025.
Is maritime transport co2 emissions rising or falling in Cook Islands?
Over the last ten years it is down 37.3%. The long-run trend across the full record is volatile.
Where does this Cook Islands 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 Cook Islands. 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/cook-islands/

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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