Portugal vs Slovakia: Year-on-year change in CO₂ emissions
Portugal
-2.08 million tonnes
in 2024
Slovakia
-1.68 million tonnes
in 2024
Portugal rank
196th
Slovakia rank
193rd
Year-on-year change in CO₂ emissions over time
- Portugal
- Slovakia
How they compare
Slovakia currently reports -1.68 million tonnes against -2.08 million tonnes in Portugal, a difference of 407,900 tonnes.
The two have swapped places 54 times across 154 shared years of data; in 1871 it was Slovakia ahead.
Portugal ranks 196th and Slovakia ranks 193rd of 215 countries.
Across the 16 decades both report, Portugal averaged higher in 3 and Slovakia in 13.
Head to head by decade
| Decade | Portugal | Slovakia | Difference | Ahead |
|---|---|---|---|---|
| 1870s | 76,130 tonnes | 351,532 tonnes | 275,403 tonnes | Slovakia |
| 1880s | 86,470 tonnes | 312,188 tonnes | 225,718 tonnes | Slovakia |
| 1890s | 57,158 tonnes | 307,818 tonnes | 250,660 tonnes | Slovakia |
| 1900s | 105,157 tonnes | 258,596 tonnes | 153,439 tonnes | Slovakia |
| 1910s | -103,692 tonnes | -246,112 tonnes | 142,420 tonnes | Portugal |
| 1920s | 180,966 tonnes | 364,710 tonnes | 183,744 tonnes | Slovakia |
| 1930s | 78,326 tonnes | 175,553 tonnes | 97,227 tonnes | Slovakia |
| 1940s | 76,852 tonnes | 153,978 tonnes | 77,126 tonnes | Slovakia |
| 1950s | 246,016 tonnes | 1.17 million tonnes | 921,616 tonnes | Slovakia |
| 1960s | 661,311 tonnes | 1.34 million tonnes | 676,778 tonnes | Slovakia |
| 1970s | 1.03 million tonnes | 1.54 million tonnes | 511,301 tonnes | Slovakia |
| 1980s | 1.60 million tonnes | -315,363 tonnes | 1.91 million tonnes | Portugal |
| 1990s | 2.61 million tonnes | -1.22 million tonnes | 3.82 million tonnes | Portugal |
| 2000s | -973,120 tonnes | -540,723 tonnes | 432,397 tonnes | Slovakia |
| 2010s | -956,395 tonnes | -382,794 tonnes | 573,601 tonnes | Slovakia |
| 2020s | -2.41 million tonnes | -952,448 tonnes | 1.46 million tonnes | Slovakia |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher year-on-year change in co₂ emissions, Portugal or Slovakia?
- Slovakia, at -1.68 million tonnes against -2.08 million tonnes in Portugal as of 2024.
- What is the difference in year-on-year change in co₂ emissions between Portugal and Slovakia?
- 407,900 tonnes, with Slovakia ahead.
- How many years of comparable data are there for Portugal and Slovakia?
- 154 years are reported by both, from 1871 to 2024.
- How do Portugal and Slovakia rank globally for year-on-year change in co₂ emissions?
- Portugal ranks 196th and Slovakia ranks 193rd of 215 countries.
- Where does this data come from?
- Global Carbon Budget (2025) – with major processing by Our World in Data, published as Year-on-year change in CO₂ emissions. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Annual growth in total emissions of carbon dioxide (CO₂), excluding land-use change, measured in tonnes.