The Congo Basin, a region of tropical forest larger than India, is at a point where further damage may rob the world of a crucial bulwark against climate change.

That’s the conclusion of the first comprehensive scientific report about the state of the environment in a region that stretches from Cross River in Nigeria to the Rift Valley in East Africa. An executive summary of the 800-page report, authored by 177 experts from across the basin and beyond, was released Monday for the COP 30 climate summit in Belém, Brazil.