Emily Kumpel, representing the NextDrop team, accepts an award in 2011 to scale up the team’s pilot study in Hubli-Dharwad. / Big Ideas Contest

Unreliable water supply is a serious impediment to health and economic development. Across the globe, 400 million people rely on unreliable water systems, and 250 million of them live in India. Learn how one organization is working to help.

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