Alex Steffen:
Alex Steffen: Städernas delbara framtid

TEDGlobal 2011 · 10:13 · Filmed Jul 2011
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Alex Steffen: The route to a sustainable future

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Hur kan städer hjälpa oss rädda framtiden? Alex Steffen visar några coola grannskapsbaserade gröna projekt som ökar vår tillgång till saker vi vill ha och behöver — samtidigt som de minskar tiden vi spenderar i bilar.

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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