Summary of “How Air Conditioning Created the Modern City”

So they would turn up the air conditioning and light one.
The expansion of tract housing in postwar suburban America relied on affordable domestic air conditioning units.
With air conditioning goes a new kind of architecture, one in which traditional hot-climate devices such as porches, cross-ventilation or pools of water, which create both layers and permeability between inside and out, have given way to sealed boxes.
The most significant architectural effect of air conditioning is in the social spaces it creates.
The architect Rem Koolhaas called this phenomenon “Junkspace”, a “Product of the encounter between escalator and air conditioning, conceived in an incubator of sheetrock always interior, so extensive that you rarely perceive limits.” In the Gulf and China as in much of the US, the mall became the principal gathering place, being a zone where large numbers could comfortably pass their time, leaving streets to be occupied by air conditioning’s mechanical ally, the automobile.
Environmentally speaking, air conditioning is anti-social.
The night-time temperature of Phoenix, Arizona, is believed to be increased by one degree or more by the heat expelled from its air conditioning.
According to one theory, air conditioning helped to elect Ronald Reagan, by attracting conservatively inclined retirees to the southern states that swung in his favour.

The orginal article.