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		 Mathis Wackernagel is co-creator , together with Professor William Rees, of the Ecological Footprint concept and has worked on 
sustainability issues for government agencies, NGOs and businesses on 
all continents. Mathis previously served as the director of the 
Sustainability Program at Redefining Progress in Oakland, California, ran the Centro de Estudios para la Sustentabilidad in Xalapa, 
Mexico, and more. Currently, Mathis Wackernagel is President of the Global Footprint Network, the world leading organization that develops and uses footprint tools.
 
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		 Albert Gore is well known worldwide as one of the most purposeful environmental activists. He has founded several unprofitable environmental
 organizations, including the Alliance for Climate Protection. In 2007,
 Albert Gore has received Nobel Peace Prize for his work in climate change activism.
 
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