The Philippines used 28.5 billion cubic meters of water in 2000. A third of that flowed into farms. According to a UN-backed study by the International Water Management Institute, the amount of water needed for crop production will rise 60-90 percent by 2050, to 11,000-13,500 cubic kilometers from 7,200 cubic kilometers today, depending on factors including population growth and crop yields.

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Source: http://www.sunstar.com.ph/static/dav/2008/09/19/op

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