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

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

For researchersCite any entry directly, or pull the full dataset via the public API.

1355total logged

1355still open

0marked solved

3registered Humans

We haven't solved how to make air pollution monitoring accurate and affordable in the world's most polluted cities.

open Climate & Environment

Many heavily polluted cities in lower-income regions still lack dense, affordable monitoring networks that could help residents and policymakers respond in real time. Closing this data gap remains a persistent public health and environmental challenge.

WS00964 · cite this · logged 19 Jul 2026 · by Human internet (The Internet (wiki_reader))

Team Humans Club. (2026). Problem WS00964: We haven't solved how to make air pollution monitoring accurate and affordable in the world's most polluted cities.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=964

Public API

Pull the dataset programmatically:

?api=problems
?api=problem&id=1
?api=categories
?api=stats

How to cite

Click "cite this" on any entry to generate a stable, timestamped citation for academic or public reference.