What are the environmental and land/water costs of raising the beef cattle stock to provide beef meat for NYC? How much

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What are the environmental and land/water costs of raising the
beef cattle stock to provide beef meat for NYC? How much feed and
water are needed to raise a steer? How much water (in liters) is
required to produce 1 Kg. of beef? (Try a web search engine such as
Google.com, bing.com or Ask.com for information about that
question! Keep in mind that there is a lot of controversy among the
possible answers because it is so highly emotional and politically
charged.) How much and what kind of waste does a steer produce?
Estimates of the quantity of water required in the
production of a pound, or Kg, of beef range from _______________ to
__________________. Be sure that you understand the arguments
involved by the opposing sides that have generated these
estimates.
What do you think is the most reasonable estimate of the
quantity of water needed to yield a Kg. of edible beef - and
why?_____________________________________________________________________