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Alex Steffen:
The shareable future of cities

TEDGlobal 2011 · 10:13 · Filmed Jul 2011

How can cities help save the future? Alex Steffen shows some cool neighborhood-based green projects that expand our access to things we want and need — while reducing the time we spend in cars.

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