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

54 years are reported by both, from 1970 to 2023.

Where does this data come from?

Statizoid (derived), published as Carbon dioxide (CO2) emissions from Power Industry (Energy) (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Sierra Leone vs Yemen: Carbon dioxide (CO2) emissions from Power Industry (Energy) (Mt)

Sierra Leone

0 Mt CO2e per square kilometre

in 2023

Yemen

0 Mt CO2e per square kilometre

in 2023

Sierra Leone rank

166th

Yemen rank

168th

Carbon dioxide (CO2) emissions from Power Industry (Energy) (Mt) over time

Sierra Leone
Yemen

How they compare

Sierra Leone currently reports 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Yemen, a difference of 0 Mt CO2e per square kilometre.

The two have swapped places 5 times across 54 shared years of data; in 1970 it was Yemen ahead.

Sierra Leone ranks 166th and Yemen ranks 168th of 194 countries.

Across the 6 decades both report, Sierra Leone averaged higher in 2 and Yemen in 4.

Head to head by decade

Decade	Sierra Leone	Yemen	Difference	Ahead
1970s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Yemen
1980s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Sierra Leone
1990s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Yemen
2000s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Yemen
2010s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Yemen
2020s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	Sierra Leone

Averages of every year both report within each decade.

Frequently asked questions

Which has higher carbon dioxide (co2) emissions from power industry (energy) (mt), Sierra Leone or Yemen?: Sierra Leone, at 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Yemen as of 2023.
What is the difference in carbon dioxide (co2) emissions from power industry (energy) (mt) between Sierra Leone and Yemen?: 0 Mt CO2e per square kilometre, with Sierra Leone ahead.
How many years of comparable data are there for Sierra Leone and Yemen?: 54 years are reported by both, from 1970 to 2023.
How do Sierra Leone and Yemen rank globally for carbon dioxide (co2) emissions from power industry (energy) (mt)?: Sierra Leone ranks 166th and Yemen ranks 168th of 194 countries.
Where does this data come from?: Statizoid (derived), published as Carbon dioxide (CO2) emissions from Power Industry (Energy) (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Sierra Leone vs Yemen: Carbon dioxide (CO2) emissions from Power Industry (Energy) (Mt). Statizoid, drawing on Statizoid (derived). Retrieved 23 September 2026, from https://environment.statizoid.com/compare/carbon-dioxide-co2-emissions-from-power-industry-energy-mt-co2e-per-square-kilometre/sierra-leone/yemen-rep/

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<a href="https://environment.statizoid.com/compare/carbon-dioxide-co2-emissions-from-power-industry-energy-mt-co2e-per-square-kilometre/sierra-leone/yemen-rep/">Sierra Leone vs Yemen: Carbon dioxide (CO2) emissions from Power Industry (Energy) (Mt)</a> — Statizoid

About this data

Indicator: Carbon dioxide (CO2) emissions from Power Industry (Energy) (Mt CO2e), per square kilometre
Unit: Mt CO2e per square kilometre
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 241 places, 12,381 data points, 1970–2023
Last refreshed: 20 September 2026

Carbon dioxide (CO2) emissions from Power Industry (Energy) (Mt CO2e) divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.