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Mathis Wackernagel, co-creator of the Ecological Footprint, explains how our current average lifestyle requires more than nature can generate. Mathis offers two possibilities for dealing with this imbalance: live much simpler lifestyles, or radically reduce our population.

Mathis Wackernagel, Ph.D. is the co-creator of the Ecological Footprint and executive director of the Global Footprint Network. He is the recipient of the 2006 WWF Award for Conservation Merit and the 2007 Skoll Award for Social Entrepreneurship among others. Full bio and links »