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Alex Steffen:
Alex Steffen vede un futuro sostenibile

TEDGlobal 2005 · 17:34 · Filmed Jul 2005
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Alex Steffen, fondatore di Worldchanging.com, ci mostra quanto sia di vitale importanza ridurre l'impronta ecologica dell'umanità, ora che lo stile di vita occidentale e consumistico si diffonde alle nazioni in via di sviluppo.

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Planetary futurist
Alex Steffen explores our planet's future, telling powerful, inspiring stories about the hard choices facing humanity ... and our opportunity to create a much better tomorrow. Full bio

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