Portugal vs Slovakia: Annual percentage change in CO₂ emissions

Portugal
-5.5%
in 2024
Slovakia
-5.4%
in 2024
Portugal rank
208th
Slovakia rank
207th

Annual percentage change in CO₂ emissions over time

  • Portugal
  • Slovakia
05001.0k1.5k186119422024

How they compare

Slovakia currently reports -5.4% against -5.5% in Portugal, a difference of 0.1%.

The two have swapped places 83 times across 154 shared years of data; in 1871 it was Portugal ahead.

Portugal ranks 208th and Slovakia ranks 207th of 215 countries.

Across the 16 decades both report, Portugal averaged higher in 11 and Slovakia in 5.

Head to head by decade

Decade Portugal Slovakia Difference Ahead
1870s 164.6% 14.6% 150.1% Portugal
1880s 8.7% 5.2% 3.5% Portugal
1890s 3.5% 3.4% 0.1% Portugal
1900s 4.3% 2.2% 2.1% Portugal
1910s 1.5% -1.8% 3.2% Portugal
1920s 7.0% 3.3% 3.7% Portugal
1930s 2.6% 1.7% 0.9% Portugal
1940s 2.8% 3.1% 0.2% Slovakia
1950s 3.9% 5.2% 1.2% Slovakia
1960s 6.3% 3.9% 2.4% Portugal
1970s 5.5% 3.2% 2.3% Portugal
1980s 5.4% -0.5% 5.9% Portugal
1990s 5.2% -2.3% 7.5% Portugal
2000s -1.5% -1.3% 0.2% Slovakia
2010s -1.6% -1.0% 0.6% Slovakia
2020s -5.6% -2.7% 2.9% Slovakia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher annual percentage change in co₂ emissions, Portugal or Slovakia?
Slovakia, at -5.4% against -5.5% in Portugal as of 2024.
What is the difference in annual percentage change in co₂ emissions between Portugal and Slovakia?
0.1%, 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 annual percentage change in co₂ emissions?
Portugal ranks 208th and Slovakia ranks 207th of 215 countries.
Where does this data come from?
Global Carbon Budget (2025) – with major processing by Our World in Data, published as Annual percentage change in CO₂ emissions. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Portugal vs Slovakia: Annual percentage change in CO₂ emissions. Statizoid, drawing on Global Carbon Budget (2025) – with major processing by Our World in Data. Retrieved 23 September 2026, from https://climate.statizoid.com/compare/change-co2-annual-pct/portugal/slovak-republic/

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About this data

Indicator
Annual percentage change in CO₂ emissions
Unit
%
Source
Global Carbon Budget (2025) – with major processing by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
215 places, 22,456 data points, 1751–2024
Last refreshed

Annual percentage growth in total emissions of carbon dioxide (CO₂), excluding land-use change.