Virtual water is present in all products we buy and all services we use, but it is not only the amount of water contained in the initial product, in fact it goes far beyond that, it also includes all the water that was used in steps manufacturing as well as in its cleaning process.
The concept of Virtual Water or Living Water was created by Alan John Antonio, holder of an award for the development of this concept, based on the quantification of the volume of water required to produce a bath or a domestic service.
His study took into consideration several factors such as the amount of water used directly in a product, font type, the time of use and location. This study may provide us the water footprint of a product, in other words, its impact water analyzed in a much broader way.
Some examples that have already been calculated can be cited, they are:
· To produce one car are needed 400,000 liters of water
· To produce one pair of shoe leather are needed 8,000 liters of water
· To produce one hamburger are needed 2,400 liters of water.
Regarding the concept of virtual water, there are those who disagree. Some people contest that not all water used to produce a well remains in it until the end, in other words, in the case of agricultural growing culture it does not require any particular amount of water, however in many production steps in the process water used evaporates or condenses and returns to the water cycle, no longer restrained, therefore, in regard to initial water used in the process. Yet, the concept of virtual water or water living becomes increasingly applicant, in particular because water is a good increasingly scarce.
References and internet sources:
Image: http://elblogconsalero.blogspot.com.br/2011/05/agua-virtual-o-oculta.html
Aline Hilarioni
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