Skyscraper farms of the 21st Century! - 1 views
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TED: Ideas worth spreading - 2 views
Personal Footprint - 9 views
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How much land area does it take to support your lifestyle? Take this quiz to find out your Ecological Footprint, discover your biggest areas of resource consumption, and learn what you can do to tread more lightly on the earth. The Footprint calculator offers an interactive, fun way for people to explore and reduce their Footprint.
LifeIssues.net - 0 views
Global Voices Online Blog - 0 views
Union of Concerned Scientists - 1 views
United Nations - 1 views
Sustainable Forestry Initiative - 0 views
CIA World Factbook - 0 views
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