campo vs cidade

FARMERS LOSING TO CITIES – From Chapter 3. Emerging Water Shortages
Lester R. Brown, Plan B 2.0: Rescuing a Planet Under Stress and a Civilization in Trouble

Water conflicts among countries dominate the headlines. But within countries it is the jousting for water between cities and farms that preoccupies local political leaders. The economics of water use do not favor farmers in this competition, simply because it takes so much water to produce food. For example, while it takes only 14 tons of water to make a ton of steel worth $550, it takes 1,000 tons of water to grow a ton of wheat worth $150. In countries preoccupied with expanding the economy and creating jobs, the policy decision to make agriculture the residual claimant comes as no surprise. 55

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