After summiting the craggy Ragged Jacket, 2, 462ft, and 2, 782ft-high Mount Meader's sparsely pine-covered crest without finding a water source, we needed to get back down to Wild River as soon as possible to refresh and refill.

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According to a 2006 Unicef report, more than 125 million children under age 5, most from developing countries, live in households without access to a clean drinking-water source.

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In addition, aquifers offer an essential buffer to populations in dry regions by providing a reliable source of water even during long periods without rainfall.

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One of the development goals set by the United Nations at the millennium was to halve the proportion of people without basic sanitation and a decent source of fresh water by 2015.

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