The Sacramento Delta and the Colorado River – a comparison

Barry Nelson had an insightful post today comparing and contrasting the Colorado River and the Sacramento-San Joaquin Bay Delta systems. There are important similarities – crashing (or crashed) ecosystems and water supplies for human systems that are stretched beyond the point of sustainability. But the institutional frameworks for addressing those problems and the prospect of …

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In Arizona, a Colorado River shortfall would hit ag first

What’s the Colorado River failure mode? By which I mean, with as much specificity as we can muster, when the water begins to run short, who will get less? I’m pushing this question because of a frustration with the doom scenarios generated by simply extrapolating the diverging supply and demand curves forward in time and invoking …

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On the Colorado, chance of surplus early, shortage down the road

I know it is in the mission statement of all card-carrying western water journalists to harp on the gloomy prospects of shortage. But in the near term, the odds of a surplus on the Colorado River are greater than the chances of a shortage, according to new calculations by the US Bureau of Reclamation. Don’t …

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Hoover Dam from above

I believe that anyone who flies in an airplane and doesn’t spend most of his time looking out the window wastes his money. – Marc Reisner When your vantage point spans a sufficient chunk of landscape, Hoover Dam doesn’t look so big. Is this really the right scale at which to think of it?

About that gap between Colorado River supply and demand….

The US Bureau of Reclamation this afternoon released its latest pass at quantifying water demand in the Colorado River Basin. Recognizing that there’s no one answer for what the demand curves might look like in the future, the agency looked at a range of six scenarios, based on input from the seven basin states on …

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Another take on Colorado Basin failure mode concludes that Arizona and Nevada are the trouble spots

Wildman and Forde make my last post on this subject look smart, arguing that the supply-demand imbalance on the Colorado River will hit Arizona and Nevada first: We find that initial shortages will be borne only by the cities of Arizona and Nevada and farms in Arizona whereas the other Basin states have no incentive …

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Las Vegas, look out: A bad year in the Colorado Basin hints at the system’s failure mode

In the work I’m doing now on the Colorado River Basin for my book, I’m trying to get beyond simply extrapolating supply and demand curves and then running around with my hair on fire. The hair-on-fire thing is easy to do, because the current supply and demand curves, as the Bureau of Reclamation frankly noted …

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usually rivers get bigger as you go downstream

Usually rivers get bigger and bigger as you go farther downstream. But the Colorado just keeps getting smaller. That’s Will Stauffer-Norris in the Aspen Times talking about the trip he and Zak Podmore made down the Colorado River, from end to end. In this case, a dusty, had-to-walk kind of end. It’s a a great line …

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Who owns the groundwater?

Writing in the Sacramento Bee, Newsha Ajami of the Pacific Institute and groundwater guru John Bredehoeft ask, in relation to the proposed Cadiz aquifer pump-and-sell project in the Mojave Desert, who owns the groundwater? The company plans to extract 2.5 million acre-feet of the water, a public good, over the next 50 years and sell it back …

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