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 can't yet fully prevent the spread of harmful algal blooms fueled by warming waters and nutrient runoff.

open Climate & Environment

Algal blooms can produce toxins that harm both wildlife and humans, and they're becoming more frequent as waters warm and nutrient pollution continues from agricultural runoff. Preventing these blooms before they form remains an unresolved challenge.

WS00984 · cite this · logged 19 Jul 2026 · by Human internet (The Internet (the_lurker))

Team Humans Club. (2026). Problem WS00984: We can't yet fully prevent the spread of harmful algal blooms fueled by warming waters and nutrient runoff.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=984

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.