On eating and drinking in Tucson:
Like many other modern U.S. cities, it might as well be a space station where human sustenance is concerned. Virtually every unit of food consumed there moves into town in a refrigerated module from somewhere far away. Every ounce of the city's drinking, washing, and goldfish-bowl-filling water is pumped from a nonrenewable source-- a fossil aquifer that is dropping so fast, sometimes the ground crumbles. In a more recent development, some city water now arrives via a three-hundred-mile-long open canal across the desert from the Colorado River, which-- owing to our thirsts-- is a river that no longer reaches the ocean, but peters out in a sand flat near the Mexican border.
If it crosses your mind that water running through hundreds of miles of open ditch in a desert will evaporate and end up full of concentrated salts and muck, then let me just tell you, that kind of negative thinking will never get you elected to public office in the state of Arizona.