Imagining a sustainable future - Alex Steffen - TED-Ed

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View full lesson: http://ed.ted.com/lessons/alex-steffen-sees-a-sustainable-futureWorldchanging.com founder Alex Steffen argues that reducing humanity's ecological footprint is especially vital now, as the western consumer lifestyle spreads to developing countries.Talk by Alex Steffen. Learn more about your ad choices. Visit megaphone.fm/adchoices

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How long is this episode of TED-Ed?

This episode is 12 minutes long.

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This episode was published on May 25, 2026.

What is this episode about?

View full lesson: http://ed.ted.com/lessons/alex-steffen-sees-a-sustainable-futureWorldchanging.com founder Alex Steffen argues that reducing humanity's ecological footprint is especially vital now, as the western consumer lifestyle spreads to...

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