"Ecologist Paul Ehrlich and conservation biologist Anne Ehrlich might have been wrong in their 1968 prediction that human overpopulation would lead to mass human starvation, as your recent News feature notes (see Nature 644, 594-596; 2025)."
"The global population now takes just over seven months to use the living resources generated by the planet in a year - for instance, by consuming timber and fish, and by converting natural ecosystems to agriculture (see go.nature.com/47zcvty)."
"The authors declare no competing interests."
Paul Ehrlich and Anne Ehrlich's 1968 prediction that human overpopulation would produce mass human starvation appears to have been incorrect. Their broader concern about humanity's environmental impacts has largely been validated. The global population now consumes the living resources that the planet generates in a year in just over seven months. This consumption includes timber and fish and extensive conversion of natural ecosystems into agricultural land. The imbalance between human demand and Earth's regenerative capacity places severe pressure on biodiversity and ecosystem services and threatens long-term resource sustainability.
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