World Solve — A living repository of problems worth solving.

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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.

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Housing informality and slum growth remain widespread in South American metros.

open South America / Unspecified, South America

Large populations live in self-built housing without secure tenure or basic services. Slum-upgrading and legal-regularisation platforms can improve living conditions.

housing slum informality growth remain social-civic-problems

WS01954 · Logged by Ian Patel on 2026-07-22T15:59:00Z · Working on: 0

Citation ID: WS01954 Title: Housing informality and slum growth remain widespread in South American metros. URL: https://www.worldsolve.org/index.php?api=problem&id=1954

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2165 public problems
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