Phoenix may not survive climate change - Salon.com

Phoenix may not survive climate change - Salon.com

Longer term, the Colorado River poses issues that no amount of tribal water can resolve. Beset by climate change, overuse, and drought, the river and its reservoirs, according to various researchers, may decline to the point that water fails to pass Hoover Dam. In that case, the CAP would dry up, but so would the Colorado Aqueduct which serves greater Los Angeles and San Diego, as well as the All-American Canal, on which the factory farms of California’s Imperial and Coachella valleys depend. Irrigators and municipalities downstream in Mexico would also go dry. If nothing changes in the current order of things, it is expected that the possibility of such a debacle could loom in little more than a decade.
The preferred solution to this crisis among the water mavens of the lower Colorado is augmentation, which means importing more water into the Colorado system to boost native supplies. A recently discussed grandiose scheme to bail out the Colorado’s users with a pipeline from the Mississippi River failed to pass the straight-face test and was shot down by then-Secretary of the Interior Ken Salazar.
Meanwhile, the obvious expedient of cutting back on water consumption finds little support in thirsty California, which will watch the CAP go dry before it gets serious about meaningful system-wide conservation.
Burning Uplands
Phoenicians who want to escape water worries, heat waves, and haboobs have traditionally sought refuge in the cool green forests of Arizona’s uplands, or at least they did until recently. In 2002, the Rodeo-Chediski fire consumed 469,000 acres of pine and mixed conifer on the Mogollon Rim, not far from Phoenix. It was an ecological holocaust that no one expected to see surpassed. Only nine years later, in 2011, the Wallow fire picked up the torch, so to speak, and burned across the Rim all the way to the New Mexico border and beyond, topping out at 538,000 charred acres.
Now, nobody thinks such fires are one-off flukes. Diligent modeling of forest response to rising temperatures and increased moisture stress suggests, in fact, that these two fires were harbingers of worse to come. By mid-century, according to a paper by an A-team of Southwestern forest ecologists, the “normal” stress on trees will equal that of the worst megadroughts in the region’s distant paleo-history, when most of the trees in the area simply died.
Compared to Phoenix’s other heat and water woes, the demise of Arizona’s forests may seem like a side issue, whose effects would be noticeable mainly in the siltation of reservoirs and the destabilization of the watersheds on which the city depends. But it could well prove a regional disaster.  Consider, then, heat, drought, windstorms, and fire as the four horsemen of Phoenix’s Apocalypse. As it happens, though, this potential apocalypse has a fifth horseman as well.
Rebecca Solnit has written eloquently of the way a sudden catastrophe — an earthquake, hurricane, or tornado — can dissolve social divisions and cause a community to cohere, bringing out the best in its citizenry. Drought and heat waves are different. You don’t know that they have taken hold until you are already in them, and you never know when they will end. The unpleasantness eats away at you.  It corrodes your state of mind. You have lots of time to meditate on the deficiencies of your neighbors, which loom larger the longer the crisis goes on.
Drought divides people, and Phoenix is already a divided place — notoriously so, thanks to the brutal antics of Maricopa County Sheriff Joe Arpaio. In Bird on Fire: Lessons from the World’s Least Sustainable City, Andrew Ross offers a dismal portrait of contemporary Phoenix — of a city threatened by its particular brand of local politics and economic domination, shaped by more than the usual quotient of prejudice, greed, class insularity, and devotion to raw power.
It is a truism that communities that do not pull together fail to surmount their challenges. Phoenix’s are as daunting as any faced by an American city in the new age of climate change, but its winner-take-all politics (out of which has come Arizona’s flagrantly repressive anti-immigration law), combined with the fragmentation of the metro-area into nearly two dozen competing jurisdictions, essentially guarantee that, when the worst of times hit, common action and shared sacrifice will remain as insubstantial as a desert mirage. When one day the U-Haul vans all point away from town and the people of the Valley of the Sun clog the interstates heading for greener, wetter pastures, more than the brutal heat of a new climate paradigm will be driving them away. The breakdown of cooperation and connectedness will spur them along, too.
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. Land use, transportation, water policies, building codes, growth management — you name it — might all have experienced a healthy overhaul. It was a chance no one took. Instead, one or several decades from now, people will bet on a surer thing: they’ll take the road out of town.