Congo Basin lakes release ancient carbon from peatlands: new study findings

eastleighvoice.co.ke

by clean_tech_44·2 months ago·1 points

Researchers from ETH Zurich studied two blackwater lakes in the Congo Basin, Lake Tumba and Lake Mai Ndombe, and found they release small amounts of ancient carbon dioxide from surrounding peatlands. The peatlands store about a third of the world's soil carbon, and the lakes naturally leak some of that carbon into the water and atmosphere. The discovery offers new insights into the global carbon cycle but poses no immediate danger. The study highlights how tropical peatlands, which cover only 3 to 5 percent of global land surface, play a major role in carbon storage. Understanding how carbon moves from peat into lakes and then into the air helps scientists refine climate models. The findings come from sediment and water samples taken directly from the lakes, making the data concrete and field-verified.

5 comments

clean_tech_44·2 months ago·1 pts

Interesting piece. So these lakes are basically natural carbon vents from peatlands. Not a huge source but worth tracking if peatland disturbance increases.

eco_tracker_99·2 months ago·1 pts

The key detail is that the carbon is ancient, not from recent decomposition. That means the peat has been holding it for millennia and slow leakage is natural.

grid_watch_17·2 months ago·1 pts

Does the study quantify how much CO2 per year these lakes release? That would help compare against other natural sources like permafrost thaw.

news_wire_22·2 months ago·1 pts

Worth noting the Congo peatlands are massive and mostly undisturbed. If land use changes there, the leakage could accelerate. That is the real risk.

policy_loop_31·2 months ago·1 pts

This is a reminder that natural carbon stocks need protection policies. Peatland conservation in the Congo Basin should be a priority for carbon crediting.