How many years of comparable data are there for Portugal and Slovakia?

35 years are reported by both, from 1990 to 2024.

Where does this data come from?

Statizoid (derived), published as Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Portugal vs Slovakia: Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit

Portugal

0 Mt CO2e per US$ of GDP

in 2024

Slovakia

0 Mt CO2e per US$ of GDP

in 2024

Portugal rank

153rd

Slovakia rank

155th

Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit over time

Portugal
Slovakia

How they compare

Portugal currently reports 0 Mt CO2e per US$ of GDP against 0 Mt CO2e per US$ of GDP in Slovakia, a difference of 0 Mt CO2e per US$ of GDP.

The two have swapped places 1 time across 35 shared years of data; in 1990 it was Slovakia ahead.

Portugal ranks 153rd and Slovakia ranks 155th of 200 countries.

Slovakia has averaged higher in every one of the 4 decades both report.

Head to head by decade

Decade	Portugal	Slovakia	Difference	Ahead
1990s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Slovakia
2000s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Slovakia
2010s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Slovakia
2020s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Slovakia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher methane (ch4) emissions (total) excluding lulucf (mt co2e), per unit, Portugal or Slovakia?: Portugal, at 0 Mt CO2e per US$ of GDP against 0 Mt CO2e per US$ of GDP in Slovakia as of 2024.
What is the difference in methane (ch4) emissions (total) excluding lulucf (mt co2e), per unit between Portugal and Slovakia?: 0 Mt CO2e per US$ of GDP, with Portugal ahead.
How many years of comparable data are there for Portugal and Slovakia?: 35 years are reported by both, from 1990 to 2024.
How do Portugal and Slovakia rank globally for methane (ch4) emissions (total) excluding lulucf (mt co2e), per unit?: Portugal ranks 153rd and Slovakia ranks 155th of 200 countries.
Where does this data come from?: Statizoid (derived), published as Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Portugal vs Slovakia: Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit. Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://environment.statizoid.com/compare/methane-ch4-emissions-total-excluding-lulucf-mt-co2e-per-unit-of-gdp/portugal/slovak-republic/

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<a href="https://environment.statizoid.com/compare/methane-ch4-emissions-total-excluding-lulucf-mt-co2e-per-unit-of-gdp/portugal/slovak-republic/">Portugal vs Slovakia: Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit</a> — Statizoid

About this data

Indicator: Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit of GDP
Unit: Mt CO2e per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 247 places, 12,498 data points, 1970–2024
Last refreshed: 21 September 2026

Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.