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

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

Where does this data come from?

Statizoid (derived), published as Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Guinea vs Sierra Leone: Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per square

Guinea

0 Mt CO2e per square kilometre

in 2023

Sierra Leone

0 Mt CO2e per square kilometre

in 2023

Guinea rank

151st

Sierra Leone rank

152nd

Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per square over time

Guinea
Sierra Leone

How they compare

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

The two have swapped places 9 times across 54 shared years of data; in 1970 it was Sierra Leone ahead.

Guinea ranks 151st and Sierra Leone ranks 152nd of 194 countries.

Across the 6 decades both report, Guinea averaged higher in 1 and Sierra Leone in 5.

Head to head by decade

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

Averages of every year both report within each decade.

Frequently asked questions

Which has higher methane (ch4) emissions from transport (energy) (mt co2e), per square, Guinea or Sierra Leone?: Guinea, at 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Sierra Leone as of 2023.
What is the difference in methane (ch4) emissions from transport (energy) (mt co2e), per square between Guinea and Sierra Leone?: 0 Mt CO2e per square kilometre, with Guinea ahead.
How many years of comparable data are there for Guinea and Sierra Leone?: 54 years are reported by both, from 1970 to 2023.
How do Guinea and Sierra Leone rank globally for methane (ch4) emissions from transport (energy) (mt co2e), per square?: Guinea ranks 151st and Sierra Leone ranks 152nd of 194 countries.
Where does this data come from?: Statizoid (derived), published as Methane (CH4) emissions from Transport (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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Guinea vs Sierra Leone: Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per square. Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://environment.statizoid.com/compare/methane-ch4-emissions-from-transport-energy-mt-co2e-per-square-kilometre/guinea/sierra-leone/

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<a href="https://environment.statizoid.com/compare/methane-ch4-emissions-from-transport-energy-mt-co2e-per-square-kilometre/guinea/sierra-leone/">Guinea vs Sierra Leone: Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per square</a> — Statizoid

About this data

Indicator: Methane (CH4) emissions from Transport (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: 21 September 2026

Methane (CH4) emissions from Transport (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.