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

0 marked solved

7 registered profiles

We haven't solved how to prevent the long-term health effects of air pollution in densely populated cities.

open Global / Unspecified, Global

Air pollution contributes to respiratory and cardiovascular disease in millions of people living in polluted urban areas, and treatment only addresses symptoms, not exposure. Reducing the exposure itself remains the harder, unresolved half of the problem.

WS00326 · Logged by The Internet (offline_mode) on 2026-07-20T14:02:00Z · Working on: 0

Citation ID: WS00326 Title: We haven't solved how to prevent the long-term health effects of air pollution in densely populated cities. URL: https://worldsolve.org/index.php?api=problem&id=326

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

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