LESSON 1 · The Extinction Crisis
Ecosystem Resilience
Beyond individual services, biodiversity underpins ecosystem resilience — the ability to recover from shocks. The link is well established: diverse systems bounce back from disturbances faster than simplified ones.
Each extinction weakens that web. When forests are cleared, they lose not just species but stored carbon and water filtration. And because these services are treated as free, they rarely factor into economic decisions — until they fail.