Saint Kitts and Nevis vs Tonga: Maritime transport CO2 emissions (experimental)
Maritime transport CO2 emissions (experimental) over time
- Saint Kitts and Nevis
- Tonga
How they compare
Tonga currently reports 3,844 Tonnes against 1,728 Tonnes in Saint Kitts and Nevis, a difference of 2,116 Tonnes.
That makes Tonga's figure about 2.2 times Saint Kitts and Nevis's.
The two have swapped places 1 time across 6 shared years of data; in 2019 it was Saint Kitts and Nevis ahead.
Saint Kitts and Nevis ranks 127th and Tonga ranks 124th of 138 countries.
Across the 2 decades both report, Saint Kitts and Nevis averaged higher in 1 and Tonga in 1.
Head to head by decade
| Decade | Saint Kitts and Nevis | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 2010s | 6,282 Tonnes | 3,161 Tonnes | 3,120 Tonnes | Saint Kitts and Nevis |
| 2020s | 3,018 Tonnes | 4,490 Tonnes | 1,472 Tonnes | Tonga |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher maritime transport co2 emissions, Saint Kitts and Nevis or Tonga?
- Tonga, at 3,844 Tonnes against 1,728 Tonnes in Saint Kitts and Nevis as of 2025.
- What is the difference in maritime transport co2 emissions between Saint Kitts and Nevis and Tonga?
- 2,116 Tonnes, with Tonga ahead.
- How many years of comparable data are there for Saint Kitts and Nevis and Tonga?
- 6 years are reported by both, from 2019 to 2025.
- How do Saint Kitts and Nevis and Tonga rank globally for maritime transport co2 emissions?
- Saint Kitts and Nevis ranks 127th and Tonga ranks 124th 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