water scarcity is behind the bloody wars in Sudan's Darfur region ... Turkey, Syria and Iraq bristle over the Euphrates and Tigris rivers [Israel etc.

Warming Will Exacerbate Global Water Conflicts | By Doug Struck | Washington Post Staff Writer | Monday, August 20, 2007; Page A08
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His company is working around the clock drilling wells to irrigate fields in California's 400-mile-long Central Valley, one of the most productive food-growing areas in the world.

"People are really starting to panic for water," said Arthur, whose father started drilling wells in 1959. They must drill ever deeper to tap the sinking water table. "Eventually, the water will be so deep the farmers won't be able to afford to pump it," he said. "There's only so much water to go around."
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The potential for conflict is more than theoretical. Turkey, Syria and Iraq bristle over the Euphrates and Tigris rivers. Sudan, Ethiopia and Egypt trade threats over the Nile. The United Nations has said water scarcity is behind the bloody wars in Sudan's Darfur region. In Somalia, drought has spawned warlords and armies.

Already, the World Health Organization says, 1 billion people lack access to potable water. In northern China, retreating glaciers and shrinking wetlands that feed the Yangtze River prompted researchers to warn that water supplies for hundreds of millions of people may be at risk.
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"Sure, my tomatoes can be grown in other parts of the world," he said. "But do we want to give up the economic base that supports small, rural towns? Do we want to ignore child labor growing our food somewhere else? Do we want to know if pesticides are being used? What are we willing to pay for all that?"