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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Urban transport congestion and pollution are major issues in South American cities.

open South America / Unspecified, South America

Car-centric growth and limited mass transit investments cause gridlock and unhealthy air. Transit-planning tools and clean-mobility ventures can address these challenges.

urban transport congestion pollution major climate-environment

WS01953 · Logged by Ian Patel on 2026-07-22T15:59:00Z · Working on: 0

Citation ID: WS01953 Title: Urban transport congestion and pollution are major issues in South American cities. URL: https://worldsolve.org/index.php?api=problem&id=1953

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1962 public problems
1962 open challenges
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