In a drought, who runs out of water, and who pays?

When New Mexico was being entertained to newspaper and television coverage last year of water trucks rolling to the handful of communities that, in the midst of drought, had run out, I did a piece in the paper trying to get my arms around the folks he hadn’t run out of water. What were they …

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Has California’s probability density function changed?

As California grapples with drought, it’s a good time to revisit Milly et al.’s 2008 Science paper Stationarity Is Dead: Whither Water Management? I’m not statistician enough to answer the question posed by the post’s title, but it’s at least worth considering, as part of the state’s policy responses to this drought on multiple time scales (both …

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California’s drought: this is a test

California’s remarkable, looming drought conditions are a test, and via OtPR we’re seeing some clues as to who will pass: Southern California prepared for this and has a sufficient buffer that it doesn’t need to ration this year. And how did Southern California prepare? In part by being audacious enough and rich enough, but also …

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Vegas: It’s easier to conserve water if you’ve been wasting a lot to begin with

Back in the 1980s, a researcher named Lawrence Hamilton (gated JSTOR paper here) studied water use and conservation behavior among the residents of 431 homes in Concord, New Hampshire. Concord’s a classic case – a slow, steady population increase putting pressure on supply that’s manageable during wet times but that became a problem in 1980, …

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Southwest drought risk

One of the significant areas of climate research right for us in the southwestern United States involves work on modeling the large (spatially and temporally) droughts that are so significant in long term human and ecosystem dynamics. These are the ones that are not just one-year whammies, but linger for decades, like the drought of …

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