Réunion vs Western Sahara: Maritime transport CO2 emissions (experimental)
Maritime transport CO2 emissions (experimental) over time
- Réunion
- Western Sahara
How they compare
Western Sahara currently reports 44,971 Tonnes against 36,793 Tonnes in Réunion, a difference of 8,178 Tonnes.
That makes Western Sahara's figure about 1.2 times Réunion's.
Across all 7 years both countries report, Western Sahara has been ahead every year.
Réunion ranks 92nd and Western Sahara ranks 89th of 138 countries.
Western Sahara has averaged higher in every one of the 2 decades both report.
Head to head by decade
| Decade | Réunion | Western Sahara | Difference | Ahead |
|---|---|---|---|---|
| 2010s | 17,371 Tonnes | 52,127 Tonnes | 34,755 Tonnes | Western Sahara |
| 2020s | 28,869 Tonnes | 51,478 Tonnes | 22,609 Tonnes | Western Sahara |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher maritime transport co2 emissions, Réunion or Western Sahara?
- Western Sahara, at 44,971 Tonnes against 36,793 Tonnes in Réunion as of 2025.
- What is the difference in maritime transport co2 emissions between Réunion and Western Sahara?
- 8,178 Tonnes, with Western Sahara ahead.
- How many years of comparable data are there for Réunion and Western Sahara?
- 7 years are reported by both, from 2019 to 2025.
- How do Réunion and Western Sahara rank globally for maritime transport co2 emissions?
- Réunion ranks 92nd and Western Sahara ranks 89th of 138 countries.
- Where does this data come from?
- Organisation for Economic Co-operation and Development, published as Maritime transport CO2 emissions (experimental). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
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