Our cities are changing right before our eyes. They are calling it an inversion.
Thirty years ago, the mayor of Chicago was unseated by a snowstorm. A blizzard in January of 1979 dumped some 20 inches on the ground, causing, among other problems, a curtailment of transit service. The few available trains coming downtown from the northwest side filled up with middle-class white riders near the far end of the line, leaving no room for poorer people trying to board on inner-city platforms. African Americans and Hispanics blamed this on Mayor Michael Bilandic, and he lost the Democratic primary to Jane Byrne a few weeks later.
Today, this could never happen. Not because of climate change, or because the Chicago Transit Authority now runs flawlessly. It couldn't happen because the trains would fill up with minorities and immigrants on the outskirts of the city, and the passengers left stranded at the inner-city stations would be members of the affluent professional class.