Upgrading Hoover Dam

Henry Brean observes that Hoover Dam’s ability to generate electricity is down 20 percent with low lake levels, a reminder of the tight integration of water and power questions along the Colorado River. The history of the big dams on the Colorado River, and the question of who gets their water, is inextricably linked with questions …

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It’s About the Evaporation

Daniel Collins (via haiku!) notes the important point that water folks are increasingly raising about climate change: it’s not just whether rainfall goes up or down. Increased evaporation and transpiration as the climate warms is the critical water supply variable. From Cai and others in GRL – since 1950, nearly half the reduction in soil …

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In the long emergency, how far will we ship our lettuce?

A couple of months ago, Coco raised a great question when I was riffing about the amusing implications of shipping lettuce from the Imperial Valley to Albuquerque so I could feed it to ants: Not enough water to grow lettuce in the Middle Rio Grande? Maybe someday. Depends. Someday, not enough cheap oil for schlepping …

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On the Colorado, Are We Doing Better Than I Thought?

Here’s a question for the western water wonks in the audience. During a time of unprecedented population growth in the west, we just went through the driest 10-year stretch on the Colorado since record-keeping began. And no one had their water turned off. What does this say about the systems we have in place to …

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On Groundwater, Look to Kansas?

Wayne Bossert is amused at the wailing emanating from California about the notion that someone should start keeping track of the water they pump from the ground: For the Californians in the audience, I’d like to offer that Kansas has been monitoring water use since the mid 1970s, took significant strides to improve that monitoring …

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A Very Dry Decade on the Colorado

With the 2009 “water year” just completed, it’s time to take stock. The decade just completed, 2000-2009, is the driest 10-year period in the Colorado River Basin in the record, according to preliminary data in the latest draft of the Bureau of Reclamation’s Colorado River Annual Operating Plan, a compendium of past data on the …

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