Think about it
There would suddenly be motivation to fix America's terrible infrastructure and improve public transit which in turn would:
- Reduce air pollution dramatically
- Reduce a primary source of environmentally destructive suburbanization
- Reduce a primary cause of megafauna extinction
- Reduce a primary cause of the urban heat island effect
- Eliminate the primary cause of death for children 18 and under
- Reduce the population of some of the worst human beings on earth (they all seem to love driving)
Caveats: There would need to be some exceptions for shipping, taxi drivers, etc which might be hard to enforce.
American shanty towns are gonna be awesome since instead of semi-permanent structures like you see in other impoverished countries, they will all be cardboard boxes and tents due to being regularly swept and dismantled for "health and safety" reasons.
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