The Amazon tipping point is much closer than expected due to deforestation. A new study shows that with 25% forest loss, 1.5°C of warming could trigger a shift to savannah—a catastrophe that would otherwise only occur at 4°C of warming.

The Amazon tipping point is much closer than expected due to deforestation. A new study shows that with 25% forest loss, 1.5°C of warming could trigger a shift to savannah—a catastrophe that would otherwise only occur at 4°C of warming.