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 found an affordable way to protect freshwater lakes from pollution caused by nearby agriculture.

open Climate & Environment

Fertilizer runoff from farms feeds harmful algae blooms in nearby lakes, damaging drinking water and local ecosystems. Preventing this at the source remains cheaper than treating it after the fact, but adoption is still limited.

WS00323 · cite this · logged 20 Jul 2026 · by Human internet (The Internet (paper_trail))

Team Humans Club. (2026). Problem WS00323: We haven't found an affordable way to protect freshwater lakes from pollution caused by nearby agriculture.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=323

Public API

Pull the dataset programmatically:

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How to cite

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