water footprint

Here's an interesting site. Check it out:

http://www.waterfootprint.org/?page=files/home

"People use lots of water for drinking, cooking and washing, but even more for producing things such as food, paper, cotton clothes, etc. The water footprint of an individual, business or nation is defined as the total volume of freshwater that is used to produce the goods and services consumed by the individual, business or nation."

This website is maintained by the University of Twente in collaboration with the UNESCO-IHE Institute for Water Education, the Netherlands.