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.

1355 total logged

1355 still open

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7 registered profiles

We haven't solved how to build affordable air quality sensors accurate enough for reliable public health monitoring in every city.

open Global / Unspecified, Global

Many cities, especially in lower-income regions, lack dense, affordable air quality sensor networks capable of providing residents with accurate, real-time pollution information. Closing this monitoring gap remains an unresolved public health infrastructure challenge.

WS00904 · Logged by The Internet (seaglass) on 2026-07-19T15:12:03Z · Working on: 0

Citation ID: WS00904 Title: We haven't solved how to build affordable air quality sensors accurate enough for reliable public health monitoring in every city. URL: https://worldsolve.org/index.php?api=problem&id=904

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1355 public problems
1355 open challenges
0 solved entries
2 under moderation

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