Henry Brean reports on lawn removal efforts in Las Vegas, Nev.: Since the turf rebate program was launched in 1999, it has paid out $189 million in rebates and helped eliminate more than 167 million square-feet of thirsty grass, saving an estimated 9 billion gallons of water per year. Translated: a reduction of approximately 4,000 …
Continue reading ‘Municipal and agricultural use of Colorado River water: a comparison’ »
I had a couple of pieces in the newspaper last week about New Mexico’s long term water usage trends. I wrote the stories because the data, a time series I assembled by reviewing state water use reports, surprised me: Water for household use peaked in 1995 and has been declining ever since, according to state …
In Scottsdale, AZ, there’s a business called Desert Cadillac. It sells cars, apparently without irony.
tl;dr – In 1960, U.S. Supreme Court Special Master Simon Rifkind made a fundamental mistake in calculating how much water was then available in the Colorado River Basin, and how much might be available in the future. The court, in its ruling in the case of Arizona v. California, accepted Rifkind’s math. The consequence is …
Continue reading ‘Simon Rifkind’s great mistake and the shortfall on the Colorado River’ »
Does this simply represent hardening of demand – the result of low-hanging conservation fruit being mostly all plucked? Or does this suggest arid Arizona is not headed toward the big water-driven economic collapse some people fear?
I’m looking forward to Requiem for the Santa Cruz: An Environmental History of an Arizona River, a forthcoming University of Arizona Press book by Robert Webb, Julio Betancourt and colleagues. While we spend a lot of time talking about how to return water to rivers in the arid southwestern United States, this group of authors …
Continue reading ‘River restoration – it’s all about the groundwater’ »
Can the decline of an “invasive” species be taken as a sign of an ecosystem’s declining health? That’s the question raised by an interesting Alastair Bland article in the East Bay Express on the latest numbers for striped bass in the Sacramento-San Joaquin-San Francisco Bay Delta system: Scientists say the existing population may be as …
On the occasion of the 100th anniversary of the Los Angeles Aqueduct, economist Gary Libecap’s take on “The Myth of Owens Valley“: The allegations are that Owens Valley water was stolen from farmers by a rapacious Los Angeles and, once it was shipped out of the valley through the Los Angeles Aqueduct, the agricultural economy …
Electa Draper in the Denver Post over the weekend on what happens when streams reclaim their flood plains in a human-altered world: Before Colorado was settled, its narrow canyons were river channel from wall to wall. Humans added roads and buildings in these tight spots and confined the channel. In one week in September, the …
Continue reading ‘When streams reclaim flood plains in a human-altered world’ »
The politics-economics interface is what fascinates me about this new idea kicking around to replenish the rapidly draining Ogallala Aquifer by moving water across Kansas from the Missouri River. As Brett Walton explained last month in Circle of Blue, it’s a modest study at this point, with costs split between the state and federal government. …
Continue reading ‘The new political economics of moving water’ »