Ecological Footprint Calculator
http://earthday.net/footprint2/index.html
“Ever wondered how much “nature” your lifestyle requires? You’re about to find out.The Ecological Footprint Calculator estimates how much productive land and water you need to support what you use and what you discard. After answering 15 easy questions through a colorful, interactive graphic, you’ll be able to compare your Ecological Footprint to what other people use and to what is available on this planet.”If your footprint is too large, you can find out what you can do to “take up less room” and compare your lifestyle with other populations and species.
