Definition
Ecological collapse refers to the cascading failure of ecosystems — species extinction, habitat loss, soil exhaustion, ocean acidification, climate destabilisation — caused primarily by the industrial activity of a single species: Homo sapiens. Where earlier humans hunted megafauna into extinction one continent at a time, industrial Sapiens has scaled the same logic to the whole planet at once.
Harari treats ecological damage as the most under-acknowledged cost of modernity. The wealth generated by science, capitalism, and industry is measured in GDP; the destruction of forests, fisheries, and a stable climate is not. The accounting is asymmetric by design.
Why it matters
How it works
Industrial economies require ever-larger inputs of energy, minerals, water, and biological material, and they discharge waste at a rate ecosystems cannot reabsorb. The growth imperative makes this structural, not optional: a firm that internalises the cost of its environmental damage loses to one that does not, so externalising those costs is the default.
The result is a slow-moving collision between two systems with incompatible logics. The economic system requires perpetual growth; the biosphere has finite capacity to supply inputs and absorb outputs. When the latter limits bind, the consequences appear as fires, floods, crop failures, and extinctions — feedback the economy is poorly designed to read.