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.

1962 total logged

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Air quality in several European urban regions remains below WHO standards.

open Europe / Unspecified, Europe

Transport and industrial emissions continue to cause health burdens despite progress. Low-cost sensor networks and policy-impact simulators can guide clean-air strategies.

climate-environment europe europe-unspecified air quality several european urban regions remains below standards transport global-unspecified pollution access african

WS01905 · Logged by Ian Patel on 2026-07-22T15:44:00Z · Working on: 0

Citation ID: WS01905 Title: Air quality in several European urban regions remains below WHO standards. URL: https://worldsolve.org/index.php?api=problem&id=1905

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1962 public problems
1962 open challenges
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