Worldchanging.com founder Alex Steffen argues that reducing humanity’s ecological footprint is incredibly vital now, as the western consumer lifestyle spreads to developing countries.
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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. (Recorded at TEDGlobal 2011, July 2011, in Edinburgh, Scotland. Duration: 10:13.) Watch Alex Steffen’s talk on TED.com, where you can download […]