6 Yves and Dativa live close to Kigali, the Rwandan capital, and their contrasting experiences tell the two sides of the struggle for hydration in developing countries, a world away from the piped mains* water of the West. It is an epic* struggle, and hearteningly, human beings are winning. According to the United Nations, 2.1 billion people - one billion alone in China and India - have gained access to healthy, clean water since 1990. An estimated 760 million, however, still rely on unhygienic sources, damaging them and their children's health, education, and economic well-being. Progress is slowest overall in sub-Saharan Africa, in conflict-hit states, such as Somalia and the Democratic Republic of the Congo
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4 explain the interrelation between healthy,clean water and economic well being