A swamp forest most people have never heard of stores as much carbon as three years of the entire world’s fossil-fuel emissions. It sits hidden deep in the Congo Basin.
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The Cuvette Centrale, at a Glance
The world’s largest tropical peatland, hidden in the central Congo Basin
145,500 km²Peatland area — larger than England
30 billion tCarbon stored in the peat
~3 yearsOf global fossil-fuel emissions
2017Year the full extent was mapped
Why it matters: disturbing this peat, through drainage, logging, or oil exploration, would release carbon built up over thousands of years — a real risk to the global climate, not just a local one.
🏛️ Must Know
The Cuvette Centrale, in Numbers
- Location The Cuvette Centrale, the world’s largest tropical peatland complex, sits in the central Congo Basin, spanning the Republic of Congo and the Democratic Republic of Congo.
- Size It covers roughly 145,500 square kilometres, an area larger than England.
- Carbon Stock The peat stores about 30 billion tonnes of carbon, roughly equivalent to three years of the world’s total fossil-fuel emissions.
- Discovery Researchers only mapped its full extent in 2017, after a UK-Congolese team spent years exploring these remote swamp forests.
- Six Congo Basin Countries The wider Congo Basin, which the Cuvette Centrale sits within, spans six countries: Cameroon, the Central African Republic, the Republic of Congo, the Democratic Republic of Congo, Equatorial Guinea, and Gabon — see WorldGeo0040 — The Geography of Africa for how the basin fits into the continent’s wider physical geography.
🏘️ Good to Know
Why It’s at Risk, and How It’s Protected
- Global Stakes Peat stores carbon built up over thousands of years. Draining or disturbing it, through logging, mining, or oil and gas exploration, would release that carbon back into the atmosphere. This is a risk to the global climate, not just a local one.
- Real Threats Much of the region is covered by proposed or existing concessions for logging, mining, and oil and gas development. Road expansion also threatens to open up previously remote areas.
- Legal Protection The Republic of Congo’s Environment Law of 2023 prohibits industrial forestry within its peatlands. Large areas of the Cuvette Centrale are also designated as Ramsar wetland sites.
- Low Deforestation, So Far Deforestation within the peatlands themselves remains exceptionally low today. Broader deforestation elsewhere in the region, however, has been documented via satellite monitoring.
Test Yourself
Previous Year Questions
- On identifying the world’s largest tropical peatland, asked as: “One of the following regions has the world’s largest tropical peatland, which holds about three years worth of global carbon emissions from fossil fuels.” (UPSC CSP 2024, GS Paper I).
- UPSC CSP 2023: Cameroon is part of the Congo Basin — Nigeria, South Sudan, and Uganda are not among its six member countries. See UPSC CSP 2023 GS Paper I, Q8.
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UPSC CSP 2023 — General Studies Paper I (Full Question Paper)UPSC CSP 2024 — General Studies Paper I (Full Question Paper)WorldGeo0040 — The Geography of AfricaUPSC CSP 2021 — General Studies Paper I (Full Question Paper)UPSC CSP 2025 — General Studies Paper I (Full Question Paper)❓ Practice this topic
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