World Solve — A living repository of problems worth solving.

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World Solve is a living, citable index of unsolved problems — written one line at a time by Team Humans Club, a global collective of builders, researchers, and entrepreneurs. We do not solve the problems here. We Democratize Innovation.

For builders Skip the search for a problem worth your time. Browse a vetted, growing list and start where the gap is real.

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Sanitation coverage gaps drive diarrheal disease and child mortality.

open Global / Unspecified, Global

Open defecation and unsafe sanitation remain common. Low-cost toilets and sludge management systems can reduce disease.

health-biology global-unspecified sanitation disease coverage gaps drive diarrheal child mortality open defecation systems african access have

WS01694 · Logged by Ian Patel on 2026-07-22T14:20:00Z · Working on: 0

Citation ID: WS01694 Title: Sanitation coverage gaps drive diarrheal disease and child mortality. URL: https://www.worldsolve.org/index.php?api=problem&id=1694

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2165 public problems
2165 open challenges
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