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Alex Steffen

Alex Steffen: Inspired ideas for a sustainable future
TEDtalksDirector April 30, 2007http://www.ted.com 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. We are using up five planets and have but one.
EarthSayer Alex Steffen
Date unknown Format Lectures
Length unknown Keywords Sustainability More Details
 

Displaying 1 video of 1 matching video containing
Alex Steffen



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