From Carbon Sink to Carbon Source: The Crisis of Africa’s Forests
Introduction For decades, the planet’s tropical forests - including those in Africa - have been celebrated as one of our most powerful natural defenses against climate change. By absorbing carbon dioxide (CO₂) during photosynthesis and storing it as biomass, they acted as “carbon sinks,” helping to stabilize atmospheric greenhouse gas levels. But a recent breakthrough study reveals a disturbing shift: Africa’s forests and woody savannas are now emitting more carbon than they absorb. This reversal has massive implications - not only for Africa but for the entire world’s efforts to meet climate goals. In this article, we explore what the study found, why this shift happened, its consequences for global climate policy, and what must be done to reverse course. What the Science Says: Africa’s Forests Are Now a Carbon Source A new peer-reviewed study published in the journal Scientific Reports (November 2025) has documented a continent-wide shift in the carbon balance of African fo...