You can’t use negative water – the dilemma of water policy planning by projection

Kyle Mittan had some nice straight talk recently in the Tucson Weekly from the University of Arizona’s Sharon Megdal about Arizona’s projections that it’ll need another million acre feet per year of water by 2060: “A million acre-feet is a lot of water,” she said. “But is that the right number, or is that symbolic …

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Stuff I wrote elsewhere: the National Climate Assessment

From the morning paper: New Mexico’s current drought, with dwindling water supplies and increasing wildfire risk, is a taste of our future under climate change, according to a sweeping new federal report released Tuesday. While climate’s natural ups and downs are playing a major role in our current drought, rising greenhouse gases increase the odds …

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