A vast underground lake that scientists hoped could help to end violence in Sudan's Darfur region probably dried up thousands of years ago, an expert says.
Alain Gachet, who used satellite images and radar in his research, said the area received too little rain and had the wrong rock types for water storage.
But the French geologist said there was enough water elsewhere in Darfur to end the fighting and rebuild the economy.
Analysts say competition for resources such as water is behind the unrest.
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{Gachet} accepted that the Boston researchers had a slim chance of being right, but he said he was not optimistic.
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http://news.bbc.co.uk/2/hi/africa/6908224.stm