From Grist:
The least sustainable city: Phoenix as a harbinger for our hot future
Phoenix’s multiple vulnerabilities, which are plenty daunting taken one by one, have the capacity to magnify one another, like compounding illnesses. In this regard, it’s a quintessentially modern city, a pyramid of complexities requiring large energy inputs to keep the whole apparatus humming.
The urban disasters of our time — New Orleans hit by Katrina, New York City swamped by Sandy — may arise from single storms, but the damage they do is the result of a chain reaction of failures — grids going down, levees failing, backup systems not backing up. As you might expect, academics have come up with a name for such breakdowns: infrastructure failure interdependencies.
You wouldn’t want to use it in a poem, but it does catch an emerging theme of our time. …
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Heat is a tricky adversary. It stresses everything, including electrical equipment. Transformers, when they get too hot, can fail. Likewise, thermoelectric generating stations, whether fired by coal, gas, or neutrons, become less efficient [PDF] as the mercury soars. And the great hydroelectric dams of the Colorado River, including Glen Canyon, which serves greater Phoenix, won’t be able to supply the “peaking power” they do now if the reservoirs behind them are fatally shrunken by drought, as multiple studies forecast they will be. Much of this can be mitigated with upgraded equipment, smart grid technologies, and redundant systems. But then along comes the haboob.
A haboob is a dust/sand/windstorm, usually caused by the collapse of a thunderstorm cell. The plunging air hits the ground and roils outward, picking up debris across the open desert. As the Arabic name suggests, such storms are native to arid regions, but — although Phoenix is no stranger to storm-driven dust — the term haboob has only lately entered the local lexicon. It seems to have been imported to describe a new class of storms, spectacular in their vehemence …
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One day, some of them may look back and think of the real estate crash of 2007-2008 and the recession that followed with fond nostalgia. The city’s economy was in the tank, growth had stalled, and for a while business-as-usual had nothing usual about it. But there was a rare kind of potential. That recession might have been the last best chance for Phoenix and other go-go Sunbelt cities to reassess their lamentably unsustainable habits and re-organize themselves, politically and economically, to get ready for life on the front burner of climate change.
Full article here.
