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If everyone consumed resources at the US level – which is what the world aspires to – you will need another four or five Earths.

— Paul R. Ehrlich

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More quotes by Paul R. Ehrlich

Too many rich people in the world is a major threat to the human future, and cultural and genetic diversity are great human resources.

Paul Ehrlich: 'Collapse of civilisation is a near certainty within decades' The Guardian (2018)

Actually, the problem in the world is that there are too many rich people.

As I’ve said many times, ‘perpetual growth is the creed of the cancer cell’.

Paul Ehrlich: 'Collapse of civilisation is a near certainty within decades' The Guardian (2018)

By this standard, the entire planet and virtually every nation is already vastly overpopulated.

The Population Explosion (1990)

Growthmania is the fatal disease of civilisation - it must be replaced by campaigns that make equity and well-being society’s goals - not consuming more junk.

All Paul R. Ehrlich quotes →

Attribution

Quote text and notes from Wikiquote: Paul R. Ehrlich (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.