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Alex Steffen vede un futuro sostenibile
1,893,615 plays
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Alex Steffen
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TEDGlobal 2005
• July 2005
Read transcript
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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