Here’s another great website which shows you the ‘virtual amount of water’ used to produce certain foods. Check it out.
Theory behind the concept of »virtual water content«
[excerpt from waterfootprint.org]
Virtual water content – The virtual-water content of a product (a commodity, good or service) is the volume of freshwater used to produce the product, measured at the place where the product was actually produced (production-site definition). It refers to the sum of the water use in the various steps of the production chain. The virtual-water content of a product can also be defined as the volume of water that would have been required to produce the product at the place where the product is consumed (consumption-site definition). We recommend to use the production-site definition and to mention it explicitly when the consumption-site definition is used. The adjective ‘virtual’ refers to the fact that most of the water used to produce a product is not contained in the product. The real-water content of products is generally negligible if compared to the virtual-water content.
» read more at waterfootprint.org
1 comment
Don’t forget your shovel. :: Virtual Water Poster says:
Feb 24, 2008
[...] on World Citizen, I read about the Virtual Water Poster. Very cool. I want [...]