Urban Issues and Solutions A colony of cities that create the state differs from a city that establishes a colony of cities. Problem fresh water is becoming scarce.A Solution ls Salt Water. (1) (2) (3) (4) The problem: Horse Crap: – New York City – London The solution: automobiles. Problem.: Car Centrism: (1) (2) Solution: Reduce Car Centrism. Urban Planning Evolves As New Problems Arise. Human Parasites Weaken Cities.