textabstractAt a few months' interval, Georgescu-Roegen's The Entropy Law and the Economic Process (1971) and Meadows et al. Limits to Growth (1972) were published. Both emphasized the dangers of economic growth, and both drew negative reactions from mainstream economists. Relying on archival evidence, we show that Georgescu-Roegen and the Club of Rome developed strategies of mutual support, which would present them at first view as natural allies. Georgescu-Roegen actually became a member of the Club of Rome, while Dennis Meadows acknowledged the influence of Georgescu-Roegen's ideas on the founding members of the Club. But in the late 70's, the gap widened between Georgescu-Roegen's adamant defense of de-growth, and the Club of Rome's les...