Vegetation growth simulated by dynamic vegetation models is often highly sensitive to CO2 fertilisation. These models project the African tropical forest carbon sink to be stable or strengthened under scenarios of future climate change . In contrast, statistical modelling suggests it has begun to decline and will weaken further, decreasing from current estimates of 0.66 tonnes of carbon removed from the atmosphere per hectare per year to 0.55 tonnes of carbon . Increasing rainfall seasonality and aridity over central Africa  threatens the massive carbon store in the Congo Basin's Cuvette Centrale peatlands, estimated at 30.6 billion tonnes .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report