The message from the Colorado Delta pulse flow: a little water can go a long way

There’s an important point I try to make when I’m out in public talking about the 2014 Colorado River Delta environmental pulse flow: the amount of water used and the size of the landscape that got wet, compared to the once-vast delta, is tiny. I get excited about the pulse flow, when water managers on …

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Climate change in the Colorado River Basin

Discussions about climate change and water supply in the western United States risk getting bogged down in pursuit of uncertainties. Those uncertainties are real, but there’s a bunch that we already know, and it’s sufficient to help us form policy responses, according to a new summary paper from the Colorado River Research Group: Assuming the …

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Greenhouse gases and southwest “megadrought”

Scientists have dubbed decades-long periods of aridity in southwestern North America “megadroughts“. We’ve had them in the past, and research has long pointed toward an increasing risk of them as the climate warms. New research published last week by Cornell’s Toby Ault and colleagues has generated a wave of scary headlines – A Mega-Drought Is Coming to …

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How “Cheap Talk” Helped Environmentalists and Water Managers Find Common Ground

An excerpt from my book, published by Earth Island Journal: a case study in how “cheap talk” – the relative informality of a “working group” without obligations – helped calm conflict between environmentalists and water managers on the Lower Colorado: In the short run, the relative informality meant that there was no concrete, institutionalized way …

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Some notes on measuring water

There is something manifestly silly about the assertion, in table 5a of the Bureau of Reclamation’s 2015 Colorado River Accounting and Water Use Report, that the Imperial Irrigation District diverted 2,455,649 acre feet of water from river at Imperial Dam that year. Park of the core curriculum for our University of New Mexico Water Resources Program …

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Happy New Water Year, Colorado River Basin! Now get to work….

As the new “water year” begins, we’ve got some challenges in the Colorado River Basin. It is worth noting some good news – despite a mediocre runoff year at 88 percent of average, storage in the basin’s two huge reservoirs, Mead and Powell, is almost exactly the same as it was last year at this …

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The Salton Sea and the risk of failure

While I was writing my book about the future of Colorado River water management, I joked about my efforts to leave the Salton Sea out of the story. It was only sort of a joke. The problems of the Salton Sea, an inland water body fed by agricultural drainage from the Imperial Valley, are an …

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I talked on the radio about my book

I miss y’all! So busy being person-selling-a-book while simultaneously being person-teaching-grad-students-about-water. I have much to say, frustrated that I don’t have enough time to write about it all here, but Steve Goldstein at KJZZ helped me share some of my ideas with Phoenix radio listeners. Thanks to the magic of the Internet, you can listen in …

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