Matti Barthel
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As a journalist, you can create a free Muck Rack account to customize your profile, list your contact preferences, and upload a portfolio of your best work.Articles
Lakes that 'breathe' ancient carbon: A surprising find in the Congo Basin
Where rivers merge in Congo’s Cuvette Centrale. Credit: Matti Barthel In the heart of the Congo Basin's Cuvette Centrale, a large depression that hosts the world's largest tropical wetland complex, lie two vast, shallow blackwater lakes, Lake Tumba and Lake Mai Ndombe. Together, they are roughly the size of 420,000 football fields. These lakes include extensive swamp forests and peatlands that store enormous amounts of carbon and regulate water flows in the Democratic Republic of the Congo.
Millennial-aged peat carbon outgassed by large humic lakes in the Congo Basin - Nature Geoscience
Abstract Congo Basin lakes Mai Ndombe and Tumba are major CO2 sources. Here we show that their dissolved inorganic carbon is some 2,170–3,515 14C years old and partially (39–40%) originates from the surrounding peatlands. This implies a loss pathway for peat carbon, in which microbes respire old carbon within the peat and the resulting CO2 is transported to the lakes and outgassed, linking these immense ancient stores to the modern carbon cycle.
DRC’s plan for the world’s largest tropical forest reserve would be good for the planet: can it succeed?
The government of the Democratic Republic of Congo passed a law in January 2025 to lead efforts to establish the largest tropical forest reserve in the world. It will be set up as a 2,600km long green corridor the size of France – 540,000km² – situated in the Congo Basin. The green corridor will follow the course of the Congo River, the world’s second largest after the Amazon, which meanders 4,374km in a long arc through central Africa.
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