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.

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We haven't found an affordable way to protect freshwater lakes from pollution caused by nearby agriculture.

open Global / Unspecified, Global

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 · Logged by The Internet (paper_trail) on 2026-07-20T13:41:00Z · Working on: 0

Citation ID: WS00323 Title: We haven't found an affordable way to protect freshwater lakes from pollution caused by nearby agriculture. URL: https://www.worldsolve.org/index.php?api=problem&id=323

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1355 public problems
1355 open challenges
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