Ten to the twelfth: A Check on the Earth-Carrying Capacity for Man, Energy, 1979.
Compatible growth is possible with zero pollution provided the appropriate technologies are adopted. The paper was originally written as an answer to the preoccupations of the Club of Rome.
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Delle tecnologie per una crescita compatibile illimitata. Keynote speech, Premio Sapio per la Ricerca Italiana, Roma, 26/10/2007