"and not a drop to drink"--as the saying goes. More information is coming out every day about the "water footprint" of things we consume. Sustainable companies (and individuals) are now taking a look at this metric. It is something green meeting planners may want to take into consideration.
Here is a great resource for information, case studies, and even calculators to help you learn more about why your water footprint is important http://www.waterfootprint.org/