Costa Rica vs Sierra Leone: Methane emissions

Costa Rica
5.54 million tonnes of CO₂ equivalents
in 2024
Sierra Leone
5.42 million tonnes of CO₂ equivalents
in 2024
Costa Rica rank
127th
Sierra Leone rank
128th

Methane emissions over time

  • Costa Rica
  • Sierra Leone
02.0M4.0M6.0M185019372024

How they compare

Costa Rica currently reports 5.54 million tonnes of CO₂ equivalents against 5.42 million tonnes of CO₂ equivalents in Sierra Leone, a difference of 126,010 tonnes of CO₂ equivalents.

The two have swapped places 9 times across 175 shared years of data; in 1850 it was Sierra Leone ahead.

Costa Rica ranks 127th and Sierra Leone ranks 128th of 199 countries.

Across the 18 decades both report, Costa Rica averaged higher in 7 and Sierra Leone in 11.

Head to head by decade

Decade Costa Rica Sierra Leone Difference Ahead
1850s 182,201 tonnes of CO₂ equivalents 464,598 tonnes of CO₂ equivalents 282,397 tonnes of CO₂ equivalents Sierra Leone
1860s 218,723 tonnes of CO₂ equivalents 470,953 tonnes of CO₂ equivalents 252,231 tonnes of CO₂ equivalents Sierra Leone
1870s 278,061 tonnes of CO₂ equivalents 480,528 tonnes of CO₂ equivalents 202,468 tonnes of CO₂ equivalents Sierra Leone
1880s 348,632 tonnes of CO₂ equivalents 490,376 tonnes of CO₂ equivalents 141,744 tonnes of CO₂ equivalents Sierra Leone
1890s 440,361 tonnes of CO₂ equivalents 504,143 tonnes of CO₂ equivalents 63,782 tonnes of CO₂ equivalents Sierra Leone
1900s 554,863 tonnes of CO₂ equivalents 595,598 tonnes of CO₂ equivalents 40,735 tonnes of CO₂ equivalents Sierra Leone
1910s 683,210 tonnes of CO₂ equivalents 686,745 tonnes of CO₂ equivalents 3,534 tonnes of CO₂ equivalents Sierra Leone
1920s 795,719 tonnes of CO₂ equivalents 839,684 tonnes of CO₂ equivalents 43,965 tonnes of CO₂ equivalents Sierra Leone
1930s 945,448 tonnes of CO₂ equivalents 1.04 million tonnes of CO₂ equivalents 97,086 tonnes of CO₂ equivalents Sierra Leone
1940s 1.25 million tonnes of CO₂ equivalents 1.28 million tonnes of CO₂ equivalents 35,789 tonnes of CO₂ equivalents Sierra Leone
1950s 1.66 million tonnes of CO₂ equivalents 1.54 million tonnes of CO₂ equivalents 117,088 tonnes of CO₂ equivalents Costa Rica
1960s 2.40 million tonnes of CO₂ equivalents 1.80 million tonnes of CO₂ equivalents 601,857 tonnes of CO₂ equivalents Costa Rica
1970s 3.61 million tonnes of CO₂ equivalents 2.12 million tonnes of CO₂ equivalents 1.49 million tonnes of CO₂ equivalents Costa Rica
1980s 4.66 million tonnes of CO₂ equivalents 2.29 million tonnes of CO₂ equivalents 2.37 million tonnes of CO₂ equivalents Costa Rica
1990s 4.45 million tonnes of CO₂ equivalents 2.88 million tonnes of CO₂ equivalents 1.57 million tonnes of CO₂ equivalents Costa Rica
2000s 3.98 million tonnes of CO₂ equivalents 3.80 million tonnes of CO₂ equivalents 182,400 tonnes of CO₂ equivalents Costa Rica
2010s 4.64 million tonnes of CO₂ equivalents 5.03 million tonnes of CO₂ equivalents 390,004 tonnes of CO₂ equivalents Sierra Leone
2020s 5.33 million tonnes of CO₂ equivalents 5.26 million tonnes of CO₂ equivalents 65,786 tonnes of CO₂ equivalents Costa Rica

Averages of every year both report within each decade.

Frequently asked questions

Which has higher methane emissions, Costa Rica or Sierra Leone?
Costa Rica, at 5.54 million tonnes of CO₂ equivalents against 5.42 million tonnes of CO₂ equivalents in Sierra Leone as of 2024.
What is the difference in methane emissions between Costa Rica and Sierra Leone?
126,010 tonnes of CO₂ equivalents, with Costa Rica ahead.
How many years of comparable data are there for Costa Rica and Sierra Leone?
175 years are reported by both, from 1850 to 2024.
How do Costa Rica and Sierra Leone rank globally for methane emissions?
Costa Rica ranks 127th and Sierra Leone ranks 128th of 199 countries.
Where does this data come from?
Jones et al. (2025) – with major processing by Our World in Data, published as Methane emissions. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

About this data

Indicator
Methane emissions
Unit
tonnes of CO₂ equivalents
Source
Jones et al. (2025) – with major processing by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
199 places, 34,825 data points, 1850–2024
Last refreshed

Measured in tonnes of carbon dioxide-equivalents over a 100-year timescale.