Dwindling water supplies are a greater risk to businesses than oil running out, a report for investors has warned. Among the industries most at risk are high-tech companies, especially those using huge quantities of water to manufacture silicon chips; electricity suppliers who use vast amounts of water for cooling; and agriculture, which uses 70% of global freshwater, says the study, commissioned by the powerful CERES group...Other high-risk sectors are beverages, clothing, biotechnology and pharmaceuticals, forest products, and metals and mining, it says.