Costa Rica vs Sierra Leone: Annual greenhouse gas emissions by world region
Costa Rica
14.98 million tonnes of CO₂ equivalents
in 2024
Sierra Leone
16.29 million tonnes of CO₂ equivalents
in 2024
Costa Rica rank
135th
Sierra Leone rank
134th
Annual greenhouse gas emissions by world region over time
- Costa Rica
- Sierra Leone
How they compare
Sierra Leone currently reports 16.29 million tonnes of CO₂ equivalents against 14.98 million tonnes of CO₂ equivalents in Costa Rica, a difference of 1.31 million tonnes of CO₂ equivalents.
That makes Sierra Leone's figure about 1.1 times Costa Rica's.
The two have swapped places 8 times across 175 shared years of data; in 1850 it was Sierra Leone ahead.
Costa Rica ranks 135th and Sierra Leone ranks 134th of 199 countries.
Across the 18 decades both report, Costa Rica averaged higher in 12 and Sierra Leone in 6.
Head to head by decade
| Decade | Costa Rica | Sierra Leone | Difference | Ahead |
|---|---|---|---|---|
| 1850s | 2.50 million tonnes of CO₂ equivalents | 44.67 million tonnes of CO₂ equivalents | 42.17 million tonnes of CO₂ equivalents | Sierra Leone |
| 1860s | 3.56 million tonnes of CO₂ equivalents | 12.28 million tonnes of CO₂ equivalents | 8.72 million tonnes of CO₂ equivalents | Sierra Leone |
| 1870s | 4.64 million tonnes of CO₂ equivalents | 4.85 million tonnes of CO₂ equivalents | 204,270 tonnes of CO₂ equivalents | Sierra Leone |
| 1880s | 4.91 million tonnes of CO₂ equivalents | 3.88 million tonnes of CO₂ equivalents | 1.03 million tonnes of CO₂ equivalents | Costa Rica |
| 1890s | 6.56 million tonnes of CO₂ equivalents | 3.07 million tonnes of CO₂ equivalents | 3.50 million tonnes of CO₂ equivalents | Costa Rica |
| 1900s | 7.56 million tonnes of CO₂ equivalents | 2.58 million tonnes of CO₂ equivalents | 4.97 million tonnes of CO₂ equivalents | Costa Rica |
| 1910s | 8.52 million tonnes of CO₂ equivalents | 1.75 million tonnes of CO₂ equivalents | 6.77 million tonnes of CO₂ equivalents | Costa Rica |
| 1920s | 7.56 million tonnes of CO₂ equivalents | 6.47 million tonnes of CO₂ equivalents | 1.08 million tonnes of CO₂ equivalents | Costa Rica |
| 1930s | 15.29 million tonnes of CO₂ equivalents | 7.28 million tonnes of CO₂ equivalents | 8.02 million tonnes of CO₂ equivalents | Costa Rica |
| 1940s | 26.10 million tonnes of CO₂ equivalents | 9.35 million tonnes of CO₂ equivalents | 16.75 million tonnes of CO₂ equivalents | Costa Rica |
| 1950s | 31.55 million tonnes of CO₂ equivalents | 7.46 million tonnes of CO₂ equivalents | 24.09 million tonnes of CO₂ equivalents | Costa Rica |
| 1960s | 32.42 million tonnes of CO₂ equivalents | 7.83 million tonnes of CO₂ equivalents | 24.59 million tonnes of CO₂ equivalents | Costa Rica |
| 1970s | 46.26 million tonnes of CO₂ equivalents | 8.87 million tonnes of CO₂ equivalents | 37.39 million tonnes of CO₂ equivalents | Costa Rica |
| 1980s | 30.93 million tonnes of CO₂ equivalents | 10.95 million tonnes of CO₂ equivalents | 19.98 million tonnes of CO₂ equivalents | Costa Rica |
| 1990s | 14.70 million tonnes of CO₂ equivalents | 8.99 million tonnes of CO₂ equivalents | 5.71 million tonnes of CO₂ equivalents | Costa Rica |
| 2000s | 16.12 million tonnes of CO₂ equivalents | 55.40 million tonnes of CO₂ equivalents | 39.28 million tonnes of CO₂ equivalents | Sierra Leone |
| 2010s | 17.18 million tonnes of CO₂ equivalents | 23.21 million tonnes of CO₂ equivalents | 6.03 million tonnes of CO₂ equivalents | Sierra Leone |
| 2020s | 14.41 million tonnes of CO₂ equivalents | 16.30 million tonnes of CO₂ equivalents | 1.89 million tonnes of CO₂ equivalents | Sierra Leone |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual greenhouse gas emissions by world region, Costa Rica or Sierra Leone?
- Sierra Leone, at 16.29 million tonnes of CO₂ equivalents against 14.98 million tonnes of CO₂ equivalents in Costa Rica as of 2024.
- What is the difference in annual greenhouse gas emissions by world region between Costa Rica and Sierra Leone?
- 1.31 million tonnes of CO₂ equivalents, with Sierra Leone 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 annual greenhouse gas emissions by world region?
- Costa Rica ranks 135th and Sierra Leone ranks 134th of 199 countries.
- Where does this data come from?
- Jones et al. (2025) – with major processing by Our World in Data, published as Annual greenhouse gas emissions by world region. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Greenhouse gas emissions are measured in tonnes of carbon dioxide-equivalents over a 100-year timescale.