The Green Lung Under Pressure (cool)

Tracking the Congo Basin’s peat-rich rainforests — the second-largest tropical forest on Earth and its most overlooked carbon store.

The forest the world forgot to count

The Congo Basin holds the second-largest tropical rainforest on Earth, and beneath its central swamp forests lies a peatland the size of England — a carbon store discovered only in 2017, and still barely mapped.

Tropical lowland rainforest canopy

A basin, classified

Framed by the Democratic Republic of the Congo, the atlas separates lowland rainforest from the flooded forests threading the Cuvette Centrale — the wet heart where peat accumulates metres deep.

Where water writes the map

Filtering to tropical flooded and peat forests strips the basin down to its wettest tissue. These are the pixels that matter most for carbon, and the ones most sensitive to a drying season.

Tropical flooded and peat forest

What is at stake

Draining or burning these peat forests would release carbon accumulated over ten thousand years in a matter of decades. Mapping them precisely is the first step to keeping them wet.