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

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We don't have an effective way to prevent nitrogen runoff from fertilizer use from creating massive ocean dead zones.

open Global / Unspecified, Global

Excess nitrogen from agricultural fertilizer washes into rivers and eventually the ocean, fueling algae blooms that deplete oxygen and create dead zones where marine life can't survive. Reducing this runoff while maintaining crop yields remains an unresolved balancing act.

WS01013 · Logged by The Internet (gray_matter) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01013 Title: We don't have an effective way to prevent nitrogen runoff from fertilizer use from creating massive ocean dead zones. URL: https://worldsolve.org/index.php?api=problem&id=1013

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

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