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

We haven't solved how to make green building materials as affordable and available as traditional carbon-intensive materials.

open Global / Unspecified, Global

Sustainable building materials often cost more or aren't as widely available as traditional concrete and steel, slowing their adoption across the construction industry. Making green materials the default rather than the premium choice remains unresolved.

climate-environment global-unspecified materials green building available traditional haven solved make affordable carbon-intensive whether philosophy-ethics mathematics-logic way determine

WS01039 · Logged by The Internet (dev_null) on 2026-07-19T15:18:30Z · Working on: 0

Citation ID: WS01039 Title: We haven't solved how to make green building materials as affordable and available as traditional carbon-intensive materials. URL: https://www.worldsolve.org/index.php?api=problem&id=1039