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

55 years are reported by both, from 1970 to 2024.

Where does this data come from?

Statizoid (derived), published as Nitrous oxide (N2O) emissions from Transport (Energy) (Mt CO2e), per capita. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Portugal vs Slovakia: Nitrous oxide (N2O) emissions from Transport (Energy) (Mt CO2e), per

Portugal

0 Mt CO2e per person

in 2024

Slovakia

0 Mt CO2e per person

in 2024

Portugal rank

66th

Slovakia rank

63rd

Nitrous oxide (N2O) emissions from Transport (Energy) (Mt CO2e), per over time

Portugal
Slovakia

How they compare

Slovakia currently reports 0 Mt CO2e per person against 0 Mt CO2e per person in Portugal, a difference of 0 Mt CO2e per person.

The two have swapped places 3 times across 55 shared years of data; in 1970 it was Portugal ahead.

Portugal ranks 66th and Slovakia ranks 63rd of 194 countries.

Across the 6 decades both report, Portugal averaged higher in 5 and Slovakia in 1.

Head to head by decade

Decade	Portugal	Slovakia	Difference	Ahead
1970s	0 Mt CO2e per person	0 Mt CO2e per person	0 Mt CO2e per person	Portugal
1980s	0 Mt CO2e per person	0 Mt CO2e per person	0 Mt CO2e per person	Portugal
1990s	0 Mt CO2e per person	0 Mt CO2e per person	0 Mt CO2e per person	Portugal
2000s	0 Mt CO2e per person	0 Mt CO2e per person	0 Mt CO2e per person	Portugal
2010s	0 Mt CO2e per person	0 Mt CO2e per person	0 Mt CO2e per person	Portugal
2020s	0 Mt CO2e per person	0 Mt CO2e per person	0 Mt CO2e per person	Slovakia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher nitrous oxide (n2o) emissions from transport (energy) (mt co2e), per, Portugal or Slovakia?: Slovakia, at 0 Mt CO2e per person against 0 Mt CO2e per person in Portugal as of 2024.
What is the difference in nitrous oxide (n2o) emissions from transport (energy) (mt co2e), per between Portugal and Slovakia?: 0 Mt CO2e per person, with Slovakia ahead.
How many years of comparable data are there for Portugal and Slovakia?: 55 years are reported by both, from 1970 to 2024.
How do Portugal and Slovakia rank globally for nitrous oxide (n2o) emissions from transport (energy) (mt co2e), per?: Portugal ranks 66th and Slovakia ranks 63rd of 194 countries.
Where does this data come from?: Statizoid (derived), published as Nitrous oxide (N2O) emissions from Transport (Energy) (Mt CO2e), per capita. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Portugal vs Slovakia: Nitrous oxide (N2O) emissions from Transport (Energy) (Mt CO2e), per. Statizoid, drawing on Statizoid (derived). Retrieved 18 September 2026, from https://environment.statizoid.com/compare/nitrous-oxide-n2o-emissions-from-transport-energy-mt-co2e-per-capita/portugal/slovak-republic/

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<a href="https://environment.statizoid.com/compare/nitrous-oxide-n2o-emissions-from-transport-energy-mt-co2e-per-capita/portugal/slovak-republic/">Portugal vs Slovakia: Nitrous oxide (N2O) emissions from Transport (Energy) (Mt CO2e), per</a> — Statizoid

About this data

Indicator: Nitrous oxide (N2O) emissions from Transport (Energy) (Mt CO2e), per capita
Unit: Mt CO2e per person
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 241 places, 13,255 data points, 1970–2024
Last refreshed: 18 September 2026

Nitrous oxide (N2O) emissions from Transport (Energy) (Mt CO2e) divided by Population, total, matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.