Methane emissions in Sierra Leone
Sierra Leone: Methane emissions was 5.42 million tonnes of CO₂ equivalents in 2024. ◆ Volatile
Latest (2024)
5.42 million tonnes of CO₂ equivalents
Change on year
up 4.2%
World rank
128th
of 199 countries
All-time high
5.79 million tonnes of CO₂ equivalents
in 2018
All-time low
462,874 tonnes of CO₂ equivalents
in 1850
Years of data
175
1850–2024
Methane emissions in Sierra Leone, 1850–2024
Source: Jones et al. (2025) – with major processing by Our World in Data. Measured in tonnes of CO₂ equivalents.
Analysis
The most recent figure for methane emissions in Sierra Leone is 5.42 million tonnes of CO₂ equivalents, measured in 2024.
That represents a change of up 4.2% on the previous year and up 3.4% over ten years.
Over the whole period, methane emissions in Sierra Leone peaked at 5.79 million tonnes of CO₂ equivalents in 2018 and was at its lowest, 462,874 tonnes of CO₂ equivalents, in 1850.
That places Sierra Leone 128th out of 199 countries with data for 2024, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1850s | 464,598 tonnes of CO₂ equivalents | 462,874 tonnes of CO₂ equivalents | 466,321 tonnes of CO₂ equivalents | 10 |
| 1860s | 470,953 tonnes of CO₂ equivalents | 466,704 tonnes of CO₂ equivalents | 475,202 tonnes of CO₂ equivalents | 10 |
| 1870s | 480,528 tonnes of CO₂ equivalents | 476,147 tonnes of CO₂ equivalents | 484,926 tonnes of CO₂ equivalents | 10 |
| 1880s | 490,376 tonnes of CO₂ equivalents | 485,906 tonnes of CO₂ equivalents | 494,841 tonnes of CO₂ equivalents | 10 |
| 1890s | 504,143 tonnes of CO₂ equivalents | 495,834 tonnes of CO₂ equivalents | 527,804 tonnes of CO₂ equivalents | 10 |
| 1900s | 595,598 tonnes of CO₂ equivalents | 544,917 tonnes of CO₂ equivalents | 626,529 tonnes of CO₂ equivalents | 10 |
| 1910s | 686,745 tonnes of CO₂ equivalents | 633,112 tonnes of CO₂ equivalents | 746,458 tonnes of CO₂ equivalents | 10 |
| 1920s | 839,684 tonnes of CO₂ equivalents | 760,146 tonnes of CO₂ equivalents | 921,779 tonnes of CO₂ equivalents | 10 |
| 1930s | 1.04 million tonnes of CO₂ equivalents | 940,700 tonnes of CO₂ equivalents | 1.15 million tonnes of CO₂ equivalents | 10 |
| 1940s | 1.28 million tonnes of CO₂ equivalents | 1.17 million tonnes of CO₂ equivalents | 1.40 million tonnes of CO₂ equivalents | 10 |
| 1950s | 1.54 million tonnes of CO₂ equivalents | 1.44 million tonnes of CO₂ equivalents | 1.64 million tonnes of CO₂ equivalents | 10 |
| 1960s | 1.80 million tonnes of CO₂ equivalents | 1.66 million tonnes of CO₂ equivalents | 1.94 million tonnes of CO₂ equivalents | 10 |
| 1970s | 2.12 million tonnes of CO₂ equivalents | 1.99 million tonnes of CO₂ equivalents | 2.28 million tonnes of CO₂ equivalents | 10 |
| 1980s | 2.29 million tonnes of CO₂ equivalents | 2.17 million tonnes of CO₂ equivalents | 2.40 million tonnes of CO₂ equivalents | 10 |
| 1990s | 2.88 million tonnes of CO₂ equivalents | 2.73 million tonnes of CO₂ equivalents | 2.96 million tonnes of CO₂ equivalents | 10 |
| 2000s | 3.80 million tonnes of CO₂ equivalents | 2.87 million tonnes of CO₂ equivalents | 4.73 million tonnes of CO₂ equivalents | 10 |
| 2010s | 5.03 million tonnes of CO₂ equivalents | 4.37 million tonnes of CO₂ equivalents | 5.79 million tonnes of CO₂ equivalents | 10 |
| 2020s | 5.26 million tonnes of CO₂ equivalents | 4.94 million tonnes of CO₂ equivalents | 5.58 million tonnes of CO₂ equivalents | 5 |
Countries ranked near Sierra Leone
- 125 Finland 5.70 million tonnes of CO₂ equivalents compare
- 126 Bosnia and Herzegovina 5.60 million tonnes of CO₂ equivalents compare
- 127 Costa Rica 5.54 million tonnes of CO₂ equivalents compare
- 129 Trinidad and Tobago 5.16 million tonnes of CO₂ equivalents compare
- 130 Hong Kong 5.15 million tonnes of CO₂ equivalents compare
- 131 Rwanda 4.75 million tonnes of CO₂ equivalents compare
More climate change data for Sierra Leone
- Share of global CO₂ emissions and population 0.2% (2100)
- Population growth 2.0% (2025)
- Population, total 8.82 million (2025)
- Urban population growth 3.3% (2025)
- Urban population 4.05 million (2025)
- Urban population 45.9% (2025)
- CO₂ emissions per capita vs. GDP per capita 0.166 tonnes per person (2024)
- Cumulative CO₂ emissions 42.62 million tonnes (2024)
- CO₂ emissions per capita 0.166 tonnes per person (2024)
- CO₂ emissions per capita vs. share of electricity generation from renewables 0.166 tonnes per person (2024)
Frequently asked questions
- What is methane emissions in Sierra Leone?
- Methane emissions in Sierra Leone was 5.42 million tonnes of CO₂ equivalents in 2024, according to Jones et al. (2025) – with major processing by Our World in Data.
- What is the highest methane emissions recorded in Sierra Leone?
- The highest recorded value was 5.79 million tonnes of CO₂ equivalents in 2018.
- What is the lowest methane emissions recorded in Sierra Leone?
- The lowest recorded value was 462,874 tonnes of CO₂ equivalents in 1850.
- How does Sierra Leone rank for methane emissions?
- Sierra Leone ranks 128th out of 199 countries with data for 2024.
- Is methane emissions rising or falling in Sierra Leone?
- Over the last ten years it is up 3.4%. The long-run trend across the full record is volatile.
- Where does this Sierra Leone data come from?
- The figures come from Jones et al. (2025) – with major processing by Our World in Data, published as part of Methane emissions. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 175 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured in tonnes of carbon dioxide-equivalents over a 100-year timescale.