In his previous role as head of water, sanitation, and hygiene (WASH) at the Bill & Melinda Gates Foundation, Louis Boorstin worked to co-invest with the World Bank in at-scale programs that would be rigorously evaluated. The unique result: lives saved in the real world, measured rigorously, with lessons about what did and didn’t work so well. As experts, practitioners, and advocates gather in Stockholm to celebrate World Water Week, here’s a Q&A with Louis—in his own words—on what he’s learned from his experience:
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