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The water problem
A Google search for “world water shortage” will produce more than four million results in 0.17 seconds. It will also use a tenth of a teaspoon of water, experts say. Given water's role in power generation, the impact of about 300 million Google searches a day is around 150,000 litres (40,000 gallons) daily -- in a world where water supplies are increasingly a major concern. -Photos by AFP
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