THE ECOLOGICAL FOOTPRINT
The ecological footprint is a measure of human demand on the Earth’s ecosystem (Rees, Wackernagel, & Testemale, 1996). The term is now in use by many organizations and on Web sites dedicated to discussions about calculating the carrying capacity of the Earth. This carrying capacity is a measure of how much land and water area a human population requires to produce the resources it consumes and to absorb its wastes. The ecological footprint for all of humankind is currently calculated at 1.4, meaning that humankind consumes 1.4 planet Earths per year. (For more information, see the Global Footprint Network Web site, www.footprintnetwork.org/en/index.php/GFN/). Another way to think about this number is that it takes the ...
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