We will not solve our climate problem by adjusting the width of streets. Incremental changes will not save our cities. Cities will be saved by designing car free areas of areas up to a mile square. Cars and trucks will be relegated the periphery of future communities. Transportation within future communities will be mainly be by foot and bike. Vacant and wasteland areas can become new car free communities. Car free communities need have no stairs. Most future residences will be one level. Graded ways can easily enable transit between levels. A max of four levels is adequate to support a car free community of 5-10K. Thinking outside the box is the only way forward. Car free communities will be forced on us by climate change. Even if climate was not a problem, car free communities would make complete sense.