World Solve — A living repository of problems worth solving.

What World Solve is

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.

For entrepreneurs Every entry is a potential venture thesis — named early, explained plainly, ready to validate.

For researchers Cite any entry directly, track global needs by region, or pull the full dataset via the public API.

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Over 400 million Africans lack access to safely managed drinking water.

open Africa, Africa

Contaminated water sources cause widespread diarrheal disease, especially among children under five. Low-cost filtration technology and community-managed borehole networks can close the gap.

health-biology africa water over 400 million africans lack access safely managed drinking global-unspecified urban african climate-environment long

WS01532 · Logged by Ian Patel on 2026-07-22T13:46:00Z · Working on: 0

Citation ID: WS01532 Title: Over 400 million Africans lack access to safely managed drinking water. URL: https://www.worldsolve.org/index.php?api=problem&id=1532

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2165 public problems
2165 open challenges
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