Water is just water, right? What happened when Sierra Madre, a suburb northeast of Los Angeles, switched from local groundwater to imported Colorado River water is a reminder that, well, no: In 2013, Sierra Madre was forced to begin importing water from the Metropolitan Water District. That led to a new problem. The water source …
Arizona cotton acreage this year is the lowest it has been in nearly a century. Cotton is incredibly important in the evolution of western water policy, in Arizona in particular and therefore in the Colorado River Basin in general. In Arizona, it was one of the “Three C’s” that dominated the state’s economy – cattle, …
87 years ago today in Colorado River water management history, water apparently was for fightin’ over: POLICE CALLED TO STOP BATTLE IN STATE HOUSE Affair Outcome of Argument Between Governor and Senator on River LIVELY MELEE HAS MANY PARTICIPANTS Gov. Hunt Declares Blow Received from Opponent Was “Purely Accidental” PHOENIX, Ariz., Nov. 26 – …
An excellent Laura Paskus story this weekend on a new climate water risk study by Justin Mankin at Lamont-Doherty and colleagues, includes some really important comments from Mankin on the implications of the work for water policy. The study helps clarify risks to water supply in the Rio Grande (and elsewhere, notably the Colorado River …
Continue reading ‘A plea for more attention to water use demand-side projections’ »
A new paper by Megan Miller and Manoochehr Shirzaei at Arizona State describing subsidence in the Phoenix area offers some interesting new data for thinking about the implications of groundwater management. Subsidence is bad, and groundwater pumping is what causes it. Having the ground surface drop is bad all around, cracking building foundations, messing up roads, and such. …
Continue reading ‘Phoenix subsidence and groundwater pumping’ »
Pulling together some New Mexico water use numbers today for one of my University of New Mexico colleagues, I was reminded of a cool paper from a few years back by Peter H. Gleick and Meena Palaniappan of the Pacific Institute that contained this striking graph: It’s two times series – U.S. gross domestic product and …
Continue reading ‘Decoupling water use from growth: the New Mexico example’ »
I’ve got a piece over at Water Deeply on Arizona’s latest latest self-destructive Colorado River Basin outburst and the clash between state-by-state domestic politics and the realities of management at the Colorado River Basin scale.
“Regulatory arbitrage” is the business practice of shifting one’s operations to exploit differences in regulatory regimes. This often involves a geographical change, such as moving a factory to a place where environmental regulations are less stringent. That seems to be what’s going on in southeastern Arizona, where California nut farmers are moving into the San …
Continue reading ‘Regulatory arbitrage and Arizona’s growing nuts’ »
Brett Walton has done us all a great service with a thorough look at the issues surrounding Native American water rights in the Colorado River Basin. Importantly, he’s looking at it not just as a problem, but as an example of what the solution space can look like. The stuff from Kathryn Sorensen, Phoenix’s water …
Continue reading ‘Walton on native water rights in the Colorado River Basin’ »
In this morning’s Arizona Star, Tucson journalist Tony Davis asks, “Is California trying to take our water?” In journalism, there’s a joke known as “Betteridge’s Law“: “Any headline that ends in a question mark can be answered by the word no.” As Tony’s story strongly suggests, the notion making the rounds these days in some Arizona political …