Using Tree Rings to Track the Monsoon

A group at the University of Arizona is using new tree ring techniques to try to crack one of the interesting outstanding paleoclimate questions in the Southwest – the summer monsoon. Tree rings have long been used to reconstruct winter precipitation records (fat rings = wet years, thin rings = dry years), but the summer …

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Stuff I wrote elsewhere: Cities’ water use in the Colorado Basin

A new study out today from the Pacific Institute of municipalities’ water use in the Colorado Basin has some good news and some bad news from a basin-wide perspective. Per capita water consumption in the basin’s cities is down: Almost every one of the water agencies included in the study experienced declines in per capita …

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On the persistence of anti-Semitism

Sad but fascinating work by Nico Voigtlaender of UCLA and Hans-Joachim Voth at CREI in Barcelona looking at the cultural persistence of anti-Semitism. They found that communities that blamed (and killed) Jews during the Black Death of the mid-1300s were more likely to also engage in violence against Jews in the 20th century: Pogroms during …

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Stuff I Wrote Elsewhere – Buying Time on the Colorado

This ran last week in the Albuquerque Journal, while I was on the road, sorry for the late bloggage (sub/ad req). From the Natural Resources Law Center’s Navigating the Future of the Colorado River conference, it’s a riff on how this year’s big snowpack buys a bit of time for the hard discussions to come …

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Hetch Hetchy – Best Pork Bun in Town!

In a comically disingenuous TV diatribe earlier this month, Congressman Devin Nunes, defender of San Joaquin Valley farmers’ federal water, suggested that perhaps if the effete liberals in San Francisco care so much about the Delta smelt, they should reduce their own consumption of Sierra Nevada water: If the Delta ecosystem is collapsing, I would …

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Playing Chicken with the Delta

One of the most interesting analyses of California’s water problems I read before last week’s trip was “California’s Sacramento San Joaquin Delta Conflict: from Cooperation to Chicken“, by Kaveh Madani and Jay Lund at UC Davis. It looks at the struggle over the Delta’s future as a game theory problem, one in which an optimal …

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