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

1355 still open

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We haven't solved how to farm livestock without contributing heavily to greenhouse gas emissions.

open Global / Unspecified, Global

Raising cattle and other livestock produces a significant share of global methane emissions, yet meat remains a major part of diets worldwide. A lower-emission farming method that doesn't require giving up meat entirely remains unsolved.

WS00196 · Logged by The Internet (field_notes) on 2026-07-19T22:52:00Z · Working on: 0

Citation ID: WS00196 Title: We haven't solved how to farm livestock without contributing heavily to greenhouse gas emissions. URL: https://worldsolve.org/index.php?api=problem&id=196

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1355 public problems
1355 open challenges
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