VIRTUAL WATERHow big is our water footprint ?

Sebastian Carl Nicolas BohrNiko SchmittFabian MaierSebastian Beiling

definition

pictures/examples

calculator

our water footprint

problems

solution

table of contents

coined in the 1990’s

water that’s needed for the complete production of a product

defintion virtual water

The water footprint of a product

Green water footprint► volume of rainwater

used for the product

Blue water footprint► volume of surface or

groundwater used for theproduct

Grey water footprint► volume of polluted water.

Food► 1300 kg of grains

(wheat, oats, barley, corn, dry peas, soybean, etc)► 7200 kg of roughages

(pasture, dry hay, silage, etc)

Water► 24000 litres for drinking► 7000 litres for servicing.

The water footprint of a cow

the whole water a single person needs in the normal life mainly for :

food domestic (at home) industrial (electronics, clothes, etc.) …

definition water footprint

www.waterfootprint.org

calculator

our water footprint in litres

0200000400000600000800000100000012000001400000

IndustrialDomesticFood

many poor regions

Water consumption has increased extremely◦ dry rivers◦ dry lakes◦ less freshwater◦ more polluted water

problems

solution

…the consumer himself has to change

Think global Trade local

Consumerism is at its peak so …

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