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Wednesday, February 25, 2009

Water Footprints

“We live in an age in which, for better or worse,” explains Chris Mayer, “people of all kinds are obsessed with reducing their ‘carbon footprint.’ Now there are more footprints to worry about: water footprints.

“If you are a longtime reader, you will know exactly what that means. The Wall Street Journal recently gave some examples:

“It takes roughly 20 gallons of water to make a pint of beer, as much as 132 gallons of water to make a 2-liter bottle of soda and about 500 gallons of water, including water used to grow, dye and process cotton, to make a pair of Levi’s stonewashed jeans.”

“Other examples include the nearly 35 gallons of water behind every cup of coffee, the 700 gallons behind the typical dyed T-shirt and the 630 gallons to produce a single hamburger.

“There is a lot more attention focusing on reducing this water footprint, especially since water scarcity issues are cropping up a lot more these days. You know the numbers: Two-thirds of the world’s populations face water shortages by 2025, according to the U.N. And according to the U.S. GAO, about 36 states face water shortages by 2013.

“This is an important issue for industrial users of water all over the world. Nike, Pepsi, Starbucks, Levi’s and about 100 other companies recently held a conference in Miami on reducing water footprints. So this is serious business.”

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