Quoted By:
> cities
> clean
The first thing I notice when I get to a largely paved area is the smell. Without the organisms found in dirt, you get a permanent stench of some sort, most notably urine. Urine in areas where alcoholics congregate has a special extra smell. The back of restaurants smell pretty awful, too, mostly rancid grease.
Dirt turns whatever hits it back to dirt. It makes things into a substance useful for growing new things, like food, trees and ground cover. Watching this cycle is much more fascinating than the primitive indulgences of humans confined to cities.
Without dirt, there would be nothing to feed the inhabitants of cities, grow the trees used to make things for cities, and the list goes on. The cement and the sand and the stone and the steel are all dug from the outdoors.
You ought to see it before it all looks like pic related. The copper wires transmitting this message might have originated here.