Gila River diversion decision: “Reply hazy. Try again.”

Brett Walton’s Circle of Blue update on the Interior Department’s upcoming Gila River diversion decision suggests we should expect a “yes” from Secretary Jewell tomorrow on a decision to proceed with a lot of inconclusive studies of the super-expensive project that will almost certainly never be built but that will be an intense environmental and …

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Five pieces of good news for water in the western United States

Amid the litany of the apocalypse, with the pictures of fallowed farm fields and dead fish and trees and cracked mud, here are five pieces of good news on western water, both on the supply side and on the demand side.   1. Colorado River Basin storage is up Total storage in the Colorado River …

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A plea for more attention to water use demand-side projections

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 …

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The great emptiness of Elephant Butte Reservoir

The New Mexico water nerd joke is that Elephant Butte Reservoir is where we spread our water out to dry. Everybody probably has the same joke? Built from 1911-1916, it’s one of the first federal reclamation projects, storing Rio Grande water for irrigation in southern New Mexico and Texas. It’s one of those reservoirs that …

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Visualizing Albuquerque water conservation

I just stumbled on a very cool tool from the folks at ESRI using U.S. government Landsat imagery (yay public goods! background here) allowing you to look at vegetation change over time. Here’s a graphic look at water use in Albuquerque 1990-2010. The bits in green are places where vegetation has increased. The bits in that …

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The Cold War was so much easier – water project development as a matter of national security

In 1960, the Cold War was a thing – the moral imperative of our global stand against the commies. At the time, Albuquerque, New Mexico, was one of the nation’s centers for nuclear weapons research, development, and management. What better reason for supporting water development? From a May 20, 1960 hearing before the House Subcommittee on Irrigation …

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Climate change, the Rio Grande forecast problem, and the death of stationarity

Laura Paskus takes us this morning to the mountains of northern New Mexico, where the snow is melting earlier than it used to, and less of the ensuing runoff is making it into our Rio Grande: [A]s bleak as southwestern springtime stream flow forecasts have been in recent years, scientists at the University of New …

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