Cholera may return to London, the mass migration of Africans could cause civil unrest in Europe and China's economy could crash by 2015 as the supply of fresh water becomes critical to the global economy. That was the bleak assessment yesterday by forecasters from some of the world's leading corporate users of fresh water, 200 of the largest food, oil, water and chemical companies. Analysts working for Shell, Coca-Cola, Procter & Gamble, Cargill and other companies which depend heavily on secure water supplies, yesterday suggested the next 20 years would be critical as countries became richer, making heavier demands on scarce water supplies.
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According to the institute's assessment, Egypt imports more than half of its food because it does not have enough water to grow it domestically and Australia is faced with water scarcity in the Murray-Darling Basin as a result of diverting large quantities of water for use in agriculture. The Aral Sea in central Asia is another example of massive diversion of water for agriculture in the Soviet era causing widespread water scarcity, and one of the world's worst environmental disasters.
Researchers say it is possible to reduce water scarcity, feed people and address poverty, but the key trade-off is with the environment. "People and their governments will face some tough decisions on how to allocate and manage water," says the institute's report.
In a further paper, WWF said yesterday that water crises, long seen as a problem of only the poorest, are affecting the wealthiest nations. "In Europe, countries along the Atlantic are suffering recurring droughts, while water-intensive tourism and irrigated agriculture are endangering water resources in the Mediterranean. In Australia, salinity is a major threat to a large proportion of its key agricultural areas", said Jamie Pittock, director of WWF's freshwater programme. In the United States, Mr Pittock said, large areas are already using substantially more water than can be naturally replenished. "This situation will only be exacerbated as climate change is predicted to bring lower rainfall, increased evaporation
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http://www.guardian.co.uk/water/story/0,,1851712,00.html