How many years of comparable data are there for Hungary and Romania?

38 years are reported by both, from 1987 to 2024.

Where does this data come from?

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

Hungary vs Romania: Nitrous oxide (N2O) emissions from Building (Energy) (Mt CO2e), per

Hungary

0 Mt CO2e per US$ of GDP

in 2024

Romania

0 Mt CO2e per US$ of GDP

in 2024

Hungary rank

94th

Romania rank

95th

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

Hungary
Romania

How they compare

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

The two have swapped places 6 times across 38 shared years of data; in 1987 it was Hungary ahead.

Hungary ranks 94th and Romania ranks 95th of 194 countries.

Across the 5 decades both report, Hungary averaged higher in 3 and Romania in 2.

Head to head by decade

Decade	Hungary	Romania	Difference	Ahead
1980s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Hungary
1990s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Romania
2000s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Romania
2010s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Hungary
2020s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Hungary

Averages of every year both report within each decade.

Frequently asked questions

Which has higher nitrous oxide (n2o) emissions from building (energy) (mt co2e), per, Hungary or Romania?: Hungary, at 0 Mt CO2e per US$ of GDP against 0 Mt CO2e per US$ of GDP in Romania as of 2024.
What is the difference in nitrous oxide (n2o) emissions from building (energy) (mt co2e), per between Hungary and Romania?: 0 Mt CO2e per US$ of GDP, with Hungary ahead.
How many years of comparable data are there for Hungary and Romania?: 38 years are reported by both, from 1987 to 2024.
How do Hungary and Romania rank globally for nitrous oxide (n2o) emissions from building (energy) (mt co2e), per?: Hungary ranks 94th and Romania ranks 95th of 194 countries.
Where does this data come from?: Statizoid (derived), published as Nitrous oxide (N2O) emissions from Building (Energy) (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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Hungary vs Romania: Nitrous oxide (N2O) emissions from Building (Energy) (Mt CO2e), per. Statizoid, drawing on Statizoid (derived). Retrieved 19 September 2026, from https://environment.statizoid.com/compare/nitrous-oxide-n2o-emissions-from-building-energy-mt-co2e-per-unit-of-gdp/hungary/romania/

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About this data

Indicator: Nitrous oxide (N2O) emissions from Building (Energy) (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: 241 places, 12,236 data points, 1970–2024
Last refreshed: 19 September 2026

Nitrous oxide (N2O) emissions from Building (Energy) (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.