Footprint Calculator
How much land area does it take to support your lifestyle?
http://www.footprintnetwork.org/en/index.php/GFN/page/calculators/
Take the 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.
segunda-feira, 3 de agosto de 2009
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