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La recente conference de la Haye, sous l'egide du Conseil Mondial de l'Eau, a eu la merite de rappeler avec insistance que la rarete de l'eau dans de vastes contrees du Monde a un caractere autant geophysique qu'economique: les investissements necessaires pour renverser la tendance a la penurie et mieux assurer l'approvisionnement des populations sont un critere qui explique ces deficits autant, si...