Peter Gleick runs down some of the impacts of California’s remarkable drought: [W]ater still comes out of my tap, in unrestricted amounts and superb quality, at a reasonable price. And this is true of every resident in the state: drinking water supplies have not been affected, especially for the vast majority of the population that …
Continue reading ‘How well is California weathering the drought?’ »
Ag-to-urban water transfers are one of the ways it’s easy to make the Colorado River Basin’s water math balance. Seventy percent of the water is currently consumed by agriculture. Just a fraction of that, transferred to use in cities (AMI, or “agriculture to municipal and industrial”), should make solving the problem relatively straightforward, right? Brian …
This line from a paper a few years back by Edella Schlager and Tanya Heikkila may seem obvious, but in the context of current discussions over the future of Colorado River management, it bears repeating: A water allocation rule that allocates more water than is available in a river is not well matched to its …
Continue reading ‘Eating the Colorado River shortage elephant, one bite at a time’ »
I’m not positive, but I’m reasonably certain the guy with the bedroll in this picture is performing arbitrage. He was sleeping out the midday sun under the San Luis Bridge on the Sonora-Baja-Arizona border before I saw him pick up and head toward those bushes on the Colorado River’s east bank. Just beyond that array …
In December of 2002, an effort to sort out the problems of the Colorado River appeared as though it was about to blow up. California had long been living beyond its means (using more than the 4.4 million acre feet minimum guaranteed under the Law of the River). The deal would have given California time …
The Augustin Plains Ranch project, New Mexico’s version of a trend toward meeting urban needs in the west by pumping rural groundwater in to cities, is taking another whack at winning state approval after losing resoundingly two years ago: A for-profit group hoping to pump New Mexico groundwater to the Rio Grande Valley and sell …
Continue reading ‘Stuff I wrote elsewhere: moving groundwater in New Mexico’ »
tl;dr The 1922 Colorado River Compact was supposed to sidestep the “doctrine of prior appropriation”, assuring slow-developing Upper Colorado River Basin states that their fast-growing downstream neighbors wouldn’t lock up all the water. But while that may be true on paper, 21st century reality suggest “prior appropriation” is back. longer: Bret Walton’s Circle of Blue …
Continue reading ‘Prior appropriation: alive and well at the Colorado River basin scale?’ »
At this point it’s just a parlor game, but has Lake Mead broken through the old “lowest since they filled it” record yet or not? Regardless of the fractions of an inch involved, it’s a big deal. (Go to Circle of Blue for an explanation.) But the conversation this week has been a bit confused …
Continue reading ‘So did Lake Mead break the record yet or not?’ »