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.

2165 total logged

2165 still open

0 marked solved

8 registered profiles

Hundreds of millions still lack safely managed drinking water.

open Global / Unspecified, Global

Rural and peri-urban areas rely on contaminated sources. Community-managed water systems and filtration tech can expand access.

social-civic-problems global-unspecified water hundreds millions lack safely managed drinking rural peri-urban areas african access urban climate-environment long asia

WS01693 · Logged by Ian Patel on 2026-07-22T14:20:00Z · Working on: 0

Citation ID: WS01693 Title: Hundreds of millions still lack safely managed drinking water. URL: https://www.worldsolve.org/index.php?api=problem&id=1693

Log in

Register

Repository Status

2165 public problems
2165 open challenges
0 solved entries
0 under moderation

Filtering Tips

Search by title keyword, country, or theme.
Use category + continent together for better narrowing.
Click any citation code to copy a direct reference format.