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In reply to the discussion: It’s official: China now eats twice the meat we do [View all]2on2u
(1,843 posts)ocean.
http://www.vegsource.com/articles/pimentel_water.htm
March 1, 2001 -- To date, probably the most reliable and widely-accepted water estimate to produce a pound of beef is the figure of 2,500 gallons/pound. Newsweek once put it another way: "the water that goes into a 1,000 pound steer would float a destroyer."
Not surprisingly, the beef industry promotes a study that determined, using highly suspect calculations, that only 441 gallons of water are required to produce a pound of beef.
(The cattlemen's study applied liberal deductions from water actually used, reasoning that water was evaporated at points during the process, or was "returned" to the water table after being used to grow plant feed, or was returned to the water table via urea and excrement from cows. Thus, study authors reasoned these waters were not "lost" but "recycled" and therefore could be subtracted from gross amount of water actually used in beef production. Of course, evaporation and cow dung don't go very far in replenishing water pumped from acquifers which took thousands of years to fill. It's interesting to consider that if the same fuzzy math were applied to calculating how much water it takes to grow vegetables, potatoes would probably only require about 2 gallons of water per pound.)