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 Waste (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 Waste (Mt CO2e), per square kilometre

Guinea

0 Mt CO2e per square kilometre

in 2023

Sierra Leone

0 Mt CO2e per square kilometre

in 2023

Guinea rank

136th

Sierra Leone rank

133rd

Methane (CH4) emissions from Waste (Mt CO2e), per square kilometre over time

Guinea
Sierra Leone

How they compare

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

The two have swapped places 1 time across 54 shared years of data; in 1970 it was Guinea ahead.

Guinea ranks 136th and Sierra Leone ranks 133rd of 203 countries.

Sierra Leone has averaged higher in every one of the 6 decades both report.

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	Sierra Leone

Averages of every year both report within each decade.

Frequently asked questions

Which has higher methane (ch4) emissions from waste (mt co2e), per square kilometre, Guinea or Sierra Leone?: Sierra Leone, at 0 Mt CO2e per square kilometre against 0 Mt CO2e per square kilometre in Guinea as of 2023.
What is the difference in methane (ch4) emissions from waste (mt co2e), per square kilometre between Guinea and Sierra Leone?: 0 Mt CO2e per square kilometre, with Sierra Leone 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 waste (mt co2e), per square kilometre?: Guinea ranks 136th and Sierra Leone ranks 133rd of 203 countries.
Where does this data come from?: Statizoid (derived), published as Methane (CH4) emissions from Waste (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 Waste (Mt CO2e), per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://environment.statizoid.com/compare/methane-ch4-emissions-from-waste-mt-co2e-per-square-kilometre/guinea/sierra-leone/

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

About this data

Indicator: Methane (CH4) emissions from Waste (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: 250 places, 12,804 data points, 1970–2023
Last refreshed: 21 September 2026

Methane (CH4) emissions from Waste (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.