Maritime transport CO2 emissions in Portugal
Portugal: Maritime transport CO2 emissions was 599,981 Tonnes in 2025. ▲ Rising
Maritime transport CO2 emissions in Portugal, 2019–2025
Source: Organisation for Economic Co-operation and Development. Measured in Tonnes.
Analysis
The most recent figure for maritime transport co2 emissions in Portugal is 599,981 Tonnes, measured in 2025.
The figure is down 6.6% on the previous year and up 22.7% over ten years.
Portugal ranks 35th of 138 countries on this measure, in the top quarter.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 489,094 Tonnes | 489,094 Tonnes | 489,094 Tonnes | 1 |
| 2020s | 542,876 Tonnes | 345,536 Tonnes | 642,642 Tonnes | 6 |
Countries ranked near Portugal
More climate change data for Portugal
- Emissions from livestock — Emissions (CO2eq) 5,543 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from N2O 1,218 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from CH4 4,325 kt (2050)
- Emissions from livestock — Emissions 4.6 kt (2050)
- Emissions from livestock — Emissions 154.46 kt (2050)
- Emissions from crops — Emissions (CO2eq) 950.54 kt (2050)
- Emissions from crops — Emissions (CO2eq) from N2O 585.76 kt (2050)
- Emissions from crops — Emissions (CO2eq) from CH4 364.79 kt (2050)
- Emissions from crops — Emissions 2.21 kt (2050)
- Emissions from crops — Emissions 13.03 kt (2050)
Frequently asked questions
- What is maritime transport co2 emissions in Portugal?
- Maritime transport co2 emissions in Portugal was 599,981 Tonnes in 2025, according to Organisation for Economic Co-operation and Development.
- What is the highest maritime transport co2 emissions recorded in Portugal?
- The highest recorded value was 642,642 Tonnes in 2024.
- What is the lowest maritime transport co2 emissions recorded in Portugal?
- The lowest recorded value was 345,536 Tonnes in 2020.
- How does Portugal rank for maritime transport co2 emissions?
- Portugal ranks 35th out of 138 countries with data for 2025.
- Is maritime transport co2 emissions rising or falling in Portugal?
- Over the last ten years it is up 22.7%. The long-run trend across the full record is rising.
- Where does this Portugal 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