How does Sierra Leone rank for methane (ch4) emissions (total) excluding lulucf (mt co2e), per?

Sierra Leone ranks 109th out of 203 countries with data for 2023.

Is methane (ch4) emissions (total) excluding lulucf (mt co2e), per rising or falling in Sierra Leone?

Over the last ten years it is up 20.3%. The long-run trend across the full record is rising.

Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per in Sierra Leone

Name: Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per in Sierra Leone
Creator: Statizoid (derived)
License: Derived by Statizoid from the sources named on the page

Sierra Leone: Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per was 0.0001 Mt CO2e per square kilometre in 2023. ▲ Rising

Latest (2023)

0.0001 Mt CO2e per square kilometre

Change on year

up 10.0%

World rank

109th

of 203 countries

All-time high

0.0001 Mt CO2e per square kilometre

in 2023

All-time low

0 Mt CO2e per square kilometre

in 1970

Years of data

1970–2023

Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per in Sierra Leone, 1970–2023

Source: Statizoid (derived). Measured in Mt CO2e per square kilometre.

Analysis

Sierra Leone recorded 0.0001 Mt CO2e per square kilometre for methane (ch4) emissions (total) excluding lulucf (mt co2e), per in 2023. That is the highest value across all 54 years on record.

That represents a change of up 10.0% on the previous year and up 20.3% over ten years.

Over the whole period, methane (ch4) emissions (total) excluding lulucf (mt co2e), per in Sierra Leone peaked at 0.0001 Mt CO2e per square kilometre in 2023 and was at its lowest, 0 Mt CO2e per square kilometre, in 1970.

Sierra Leone ranks 109th of 203 countries on this measure, in the middle of the range.

The long-run direction has been consistently rising across the 54 years of available data.

Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per in Sierra Leone, year by year

Annual values for Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per square kilometre in Sierra Leone, 1970 to 2023.
Year	Mt CO2e per square kilometre	Change
1970	0 Mt CO2e per square kilometre	—
1971	0 Mt CO2e per square kilometre	+1.9%
1972	0 Mt CO2e per square kilometre	+1.8%
1973	0 Mt CO2e per square kilometre	+0.4%
1974	0 Mt CO2e per square kilometre	+2.3%
1975	0 Mt CO2e per square kilometre	+4.0%
1976	0 Mt CO2e per square kilometre	+2.8%
1977	0 Mt CO2e per square kilometre	+1.9%
1978	0 Mt CO2e per square kilometre	+2.7%
1979	0 Mt CO2e per square kilometre	-4.4%
1980	0 Mt CO2e per square kilometre	+1.7%
1981	0 Mt CO2e per square kilometre	-0.1%
1982	0 Mt CO2e per square kilometre	+2.3%
1983	0 Mt CO2e per square kilometre	-2.9%
1984	0 Mt CO2e per square kilometre	-0.8%
1985	0 Mt CO2e per square kilometre	-0.1%
1986	0 Mt CO2e per square kilometre	+4.4%
1987	0 Mt CO2e per square kilometre	-0.6%
1988	0 Mt CO2e per square kilometre	+2.4%
1989	0 Mt CO2e per square kilometre	+2.0%
1990	0 Mt CO2e per square kilometre	+32.8%
1991	0 Mt CO2e per square kilometre	-0.2%
1992	0 Mt CO2e per square kilometre	-0.2%
1993	0 Mt CO2e per square kilometre	+1.1%
1994	0 Mt CO2e per square kilometre	-1.6%
1995	0 Mt CO2e per square kilometre	+1.5%
1996	0 Mt CO2e per square kilometre	+0.1%
1997	0 Mt CO2e per square kilometre	+3.9%
1998	0 Mt CO2e per square kilometre	+0.1%
1999	0 Mt CO2e per square kilometre	+2.7%
2000	0 Mt CO2e per square kilometre	-1.6%
2001	0 Mt CO2e per square kilometre	-1.9%
2002	0 Mt CO2e per square kilometre	+5.2%
2003	0 Mt CO2e per square kilometre	+3.7%
2004	0 Mt CO2e per square kilometre	+5.9%
2005	0 Mt CO2e per square kilometre	+16.9%
2006	0.0001 Mt CO2e per square kilometre	+11.8%
2007	0 Mt CO2e per square kilometre	-10.9%
2008	0 Mt CO2e per square kilometre	+5.8%
2009	0.0001 Mt CO2e per square kilometre	+8.5%
2010	0.0001 Mt CO2e per square kilometre	+5.2%
2011	0.0001 Mt CO2e per square kilometre	+4.9%
2012	0.0001 Mt CO2e per square kilometre	+4.4%
2013	0.0001 Mt CO2e per square kilometre	+3.0%
2014	0.0001 Mt CO2e per square kilometre	+2.3%
2015	0.0001 Mt CO2e per square kilometre	-6.0%
2016	0.0001 Mt CO2e per square kilometre	+1.8%
2017	0.0001 Mt CO2e per square kilometre	+0.7%
2018	0.0001 Mt CO2e per square kilometre	+0.4%
2019	0.0001 Mt CO2e per square kilometre	+3.6%
2020	0.0001 Mt CO2e per square kilometre	+2.7%
2021	0.0001 Mt CO2e per square kilometre	+13.6%
2022	0.0001 Mt CO2e per square kilometre	-8.5%
2023	0.0001 Mt CO2e per square kilometre	+10.0%

Biggest year-on-year movements

Years where Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per in Sierra Leone changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.

Year	Change	From	To
1990	+32.8%	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre

Averages by decade

Decade	Average	Lowest	Highest	Years
1970s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	10
1980s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	10
1990s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	10
2000s	0 Mt CO2e per square kilometre	0 Mt CO2e per square kilometre	0.0001 Mt CO2e per square kilometre	10
2010s	0.0001 Mt CO2e per square kilometre	0.0001 Mt CO2e per square kilometre	0.0001 Mt CO2e per square kilometre	10
2020s	0.0001 Mt CO2e per square kilometre	0.0001 Mt CO2e per square kilometre	0.0001 Mt CO2e per square kilometre	4

Countries ranked near Sierra Leone

106 Mexico 0.0001 Mt CO2e per square kilometre compare
107 Jamaica 0.0001 Mt CO2e per square kilometre compare
108 Burkina Faso 0.0001 Mt CO2e per square kilometre compare
110 South Africa 0.0001 Mt CO2e per square kilometre compare
111 Brazil 0.0001 Mt CO2e per square kilometre compare
112 Guinea 0.0001 Mt CO2e per square kilometre compare

See the full ranking of 250 places →

More environment data for Sierra Leone

Historical exposure to drought — Land soil moisture anomaly -5.4 Percentage change (2025)
Historical exposure to drought — Cropland soil moisture anomaly -5.39 Percentage change (2025)
Standard Deviation, annual growth rate 0 % change on previous year (2025)
Standard Deviation 0.232 °C (2025)
Temperature change 1.28 °C (2025)
Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), annual 0.8252 % change on previous year (2024)
Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
Methane (CH4) emissions from Power Industry (Energy) (Mt CO2e) 0 % change on previous year (2024)
Methane (CH4) emissions from Power Industry (Energy) (Mt CO2e), per 0 Mt CO2e per US$ of GDP (2024)

All data for Sierra Leone →

Frequently asked questions

What is methane (ch4) emissions (total) excluding lulucf (mt co2e), per in Sierra Leone?: Methane (ch4) emissions (total) excluding lulucf (mt co2e), per in Sierra Leone was 0.0001 Mt CO2e per square kilometre in 2023, according to Statizoid (derived).
What is the highest methane (ch4) emissions (total) excluding lulucf (mt co2e), per recorded in Sierra Leone?: The highest recorded value was 0.0001 Mt CO2e per square kilometre in 2023.
What is the lowest methane (ch4) emissions (total) excluding lulucf (mt co2e), per recorded in Sierra Leone?: The lowest recorded value was 0 Mt CO2e per square kilometre in 1970.
How does Sierra Leone rank for methane (ch4) emissions (total) excluding lulucf (mt co2e), per?: Sierra Leone ranks 109th out of 203 countries with data for 2023.
Is methane (ch4) emissions (total) excluding lulucf (mt co2e), per rising or falling in Sierra Leone?: Over the last ten years it is up 20.3%. The long-run trend across the full record is rising.
Where does this Sierra Leone data come from?: The figures come from Statizoid (derived), published as part of Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per square kilometre. Statizoid updates them automatically from the source API.

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Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per in Sierra Leone. Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://environment.statizoid.com/stat/methane-ch4-emissions-total-excluding-lulucf-mt-co2e-per-square-kilometre/sierra-leone/

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<a href="https://environment.statizoid.com/stat/methane-ch4-emissions-total-excluding-lulucf-mt-co2e-per-square-kilometre/sierra-leone/">Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per in Sierra Leone</a> — Statizoid

How this figure is calculated

Methane (CH4) emissions (total) excluding LULUCF (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.

Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e) ÷ Land area (sq. km)

Computed from

Methane (CH4) emissions (total) excluding LULUCF EDGAR (Emissions Database for Global Atmospheric Research) Community GHG Database, Joint Research Centre (JRC) - European Commission
Land area FAOSTAT, Food and Agriculture Organization of the United Nations (FAO)

Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.

About this data

Indicator: Methane (CH4) emissions (total) excluding LULUCF (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 (total) excluding LULUCF (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.