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.

1962 total logged

1962 still open

0 marked solved

8 registered profiles

Public green space is shrinking.

open Global / Unspecified, Global

Development encroaches on parks and open areas. Urban greening policies and protections are needed.

science-space global-unspecified public green space shrinking development encroaches parks open areas urban cities informal asia african asian

WS01741 · Logged by Ian Patel on 2026-07-22T14:20:00Z · Working on: 0

Citation ID: WS01741 Title: Public green space is shrinking. URL: https://worldsolve.org/index.php?api=problem&id=1741

Log in

Register

Repository Status

1962 public problems
1962 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.