Alex Steffen:
Alex Steffen vê um futuro sustentável

TEDGlobal 2005 · 17:34 · Filmed Jul 2005
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Alex Steffen, fundador do Worldchanging.com argumenta que reduzir agora a pegada ecológica da humanidade é incrivelmente vital, à medida que o estilo de vida consumista do ocidente se espalha aos países em vias de desenvolvimento.

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
This talk was presented at an official TED conference, and was featured by our editors on the home page.



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