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Alex Steffen:
הדרך לעתיד בר-קיימא

TEDGlobal 2005 · 17:34 · Filmed Jul 2005
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אלכס סטפן, מייסד "שינוי עולמי" (Worldchanging.com), טוען שצמצום העקבות האקולוגיים של האנושות הוא כיום חיוני ביותר, עם התפשטות סגנון החיים הצרכני המערבי אל הארצות המתפתחות.

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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