From GOOD magazine, published on 3/17/09, retrieved on April 6, 2009:
As we become more and more aware that we may be using water at an unsustainable pace, the idea of water footprints—the amount of water an individual uses—is becoming more common. Water footprints can be hard to calculate, depending on how far up the chain of production you go, since everything you eat and buy used some water to produce (to feed cows for beef, for example, or to use in the factory that made your cell phone). With our latest Transparency, we give you some examples of how much water is used in some of your daily activities, so that you can begin calculate your footprint and try to reduce your gallons.
Click here to see the graph.