A community in the Aouchpara Union of rural Bangladesh holds a “social mapping” session to plan out who in their community has latrines already and how much each household could contribute to a new water and sanitation project. Social mapping is part of Community-Led Total Sanitation (CLTS), a program that has been used for more than a decade in Bangladesh to prevent open defecation — and it’s been pretty successful! (photo: Mo Scarpelli)

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