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335 days ago
Great pic of 2012 Blue Planet Prize winners Mathis Wackernagel, Bill Rees, & Thomas Lovejoy. #EcologicalFootprint
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Global Footprint Network is an international think tank working to advance #sustainability through use of the #EcologicalFootprint, a resource accounting tool.
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57
335 days ago
Great pic of 2012 Blue Planet Prize winners Mathis Wackernagel, Bill Rees, & Thomas Lovejoy. #EcologicalFootprint
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