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Alex Steffen vislumbra un futuro sustentable.

TEDGlobal 2005 · 17:34 · Filmed Jul 2005
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El fundador de Worldchanging.com, Alex Steffen, sostiene que reducir la huella ecológica humana es extremedamente importante hoy, a medida que el estilo de vida y de consumo occidental se extiende a los países en vías de desarrollo.

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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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