Ideas worth spreading

1,106,016 views | Alex Steffen • TEDGlobal 2011

The shareable future of cities

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.

This talk was presented at an official TED conference. TED's editors chose to feature it for you.

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.

This talk was presented at an official TED conference. TED's editors chose to feature it for you.

About the speaker

Planetary futurist

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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.

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