How many years of comparable data are there for Yemen and Zambia?

29 years are reported by both, from 1990 to 2018.

Where does this data come from?

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

Yemen vs Zambia: Nitrous oxide (N2O) emissions from Transport (Energy) (Mt CO2e), per

Yemen

0 Mt CO2e per US$ of GDP

in 2018

Zambia

0 Mt CO2e per US$ of GDP

in 2024

Yemen rank

97th

Zambia rank

95th

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

Yemen
Zambia

How they compare

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

The two have swapped places 3 times across 29 shared years of data; in 1990 it was Zambia ahead.

Yemen ranks 97th and Zambia ranks 95th of 191 countries.

Yemen has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Yemen	Zambia	Difference	Ahead
1990s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Yemen
2000s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Yemen
2010s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Yemen

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, Yemen or Zambia?: Zambia, at 0 Mt CO2e per US$ of GDP against 0 Mt CO2e per US$ of GDP in Yemen as of 2024.
What is the difference in nitrous oxide (n2o) emissions from transport (energy) (mt co2e), per between Yemen and Zambia?: 0 Mt CO2e per US$ of GDP, with Zambia ahead.
How many years of comparable data are there for Yemen and Zambia?: 29 years are reported by both, from 1990 to 2018.
How do Yemen and Zambia rank globally for nitrous oxide (n2o) emissions from transport (energy) (mt co2e), per?: Yemen ranks 97th and Zambia ranks 95th of 191 countries.
Where does this data come from?: Statizoid (derived), published as Nitrous oxide (N2O) emissions from Transport (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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Yemen vs Zambia: 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-unit-of-gdp/yemen-rep/zambia/

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About this data

Indicator: Nitrous oxide (N2O) emissions from Transport (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: 238 places, 12,139 data points, 1970–2024
Last refreshed: 18 September 2026

Nitrous oxide (N2O) emissions from Transport (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.