
by Ernst Ulrich von Weizsäcker · Terre vivante · tapa blanda · ISBN 9782904082672

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Factor Four: Doubling Wealth, Halving Resource Use is a book that explores how to double wealth while halving resource consumption. Published on December 3, 1997, this 320-page paperback presents a report to the Club of Rome and is written by Ernst Ulrich von Weizsäcker.

L. Hunter Lovins is an American environmentalist, author, sustainable development proponent, co-founder of Rocky Mountain Institute, and president of the nonprofit organization Natural Capitalism Solutions.
