Portugal CO₂ Emissions
Portugal emitted 36 million tonnes of CO₂ in 2024, 0.09% of the global total. That ranks it 66th of 213 countries and territories and works out at 3.41 tonnes per person.
Data year 2024 · Source: Global Carbon Budget (2025) via Our World in Data
How much CO₂ does Portugal emit?
Portugal produced 36 million tonnes of carbon dioxide from fossil fuels and industry in 2024. The world total was 38.6 billion tonnes, so Portugal accounts for 0.09% of it.
With a population of about 10 million, that is 3.41 tonnes per person, 28% below the world average of 4.73 tonnes.
CO₂ emissions in Portugal since 1990
Annual emissions in Portugal have fallen by 22% since 1990, from 45 million tonnes to 36 million tonnes. Over the last ten years, from 2014 to 2024, they have fallen by 26%. Emissions peaked in 2005 at 70 million tonnes and are now 49% below that level.
Where the CO₂ comes from
Oil is the largest source of CO₂ in Portugal, at about 69% of the total, followed by gas at 19% and cement at 6%.
How Portugal compares with other countries
These are the countries closest to Portugal in the 2024 ranking by total emissions. See the full ranking of all 213 countries.
| # | Country | Total (Mt) | Share of world | Per person (t) |
|---|---|---|---|---|
| 64 | Sweden | 38.10 | 0.10% | 3.59 |
| 65 | Norway | 37.18 | 0.10% | 6.67 |
| 66 | Portugal | 35.54 | 0.09% | 3.41 |
| 67 | Trinidad and Tobago | 34.58 | 0.09% | 22.93 |
| 68 | Hong Kong | 33.32 | 0.09% | 4.49 |
Historical emissions
Carbon dioxide stays in the atmosphere for a long time, so past emissions matter as well as current ones. Since records began, Portugal has emitted about 2.8 billion tonnes of CO₂ from fossil fuels and industry. That is 0.15% of the cumulative global total, compared with 0.09% of emissions in 2024.
Frequently asked questions
How much CO₂ does Portugal emit per year?
Portugal emitted 36 million tonnes of CO₂ from fossil fuels and industry in 2024. That is 0.09% of global emissions.
What are the CO₂ emissions per person in Portugal?
About 3.41 tonnes of CO₂ per person in 2024, which is 28% below the world average of 4.73 tonnes.
Are CO₂ emissions in Portugal rising or falling?
They have fallen by 26% over the last ten years and fallen by 22% since 1990. Emissions peaked in 2005 at 70 million tonnes and are now 49% below that level.
What is the largest source of CO₂ in Portugal?
Oil is the largest source, responsible for about 69% of emissions from fossil fuels and industry, followed by gas at 19%.
About the data. Figures are annual carbon dioxide emissions from burning fossil fuels and from industry, such as cement production. They are counted where the emissions happen and do not include land-use change, other greenhouse gases, or emissions from imported goods.
Source: Global Carbon Budget (2025), processed by Our World in Data and used under the CC BY 4.0 licence. Latest year available: 2024.
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