Melons, boats, fish: the new Tusher Dam on the Green

Brian Maffly writes this week about the new Tusher Dam on the Green River, a little diversion structure that diverts water to a bit more than 5,000 acres that apparently grows delicious melons. The old dam was in trouble, and the new one has been crafted to expand the range of natural and societal values …

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The inevitable decline of irrigated acreage in California’s central valley

It’s a relatively straightforward point: when there is less water to irrigate farmland, there will be less irrigated farmland. For example, OtPR last year: As groundwater sustainability agencies have to bring irrigated acreage in line with the sustainable yield of the groundwater basin, they will be retiring irrigated lands (Dr. Burt: 1-1.5 million acres; Dr. Lund: …

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From the World Bank, hope for our ability to handle climate change’s water problems

A new report by a team from the World Bank offers hope for the ability of most of the world to cope with increasing water scarcity associated with climate change. The headlines following the report’s release have been grim: “Global water shortages to deliver ‘severe hit’ to economies, World Bank warns“, to cite one typical …

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Early melt in the West’s snowpack

April and early May have been extraordinarily warm in parts of the western United States, leading to early snowmelt, according to the USDA’s first-week-of-May snowpack update: During April, Western snowpack dropped at record speed, according to data from the fifth and final 2016 forecast by the U.S. Department of Agriculture’s Natural Resources Conservation Service. “In …

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On the use of the word “decoupling”

I’ve been using the word “decoupling” to describe what is happening in the relationship between water use and population/economic growth. The phenomenon is common, and I blog about it a lot – water use going down even as population and agricultural productivity go up. Now comes Robert Stavins, a prominent environmental economist, to argue that …

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Is the Colorado River community nearing a water-saving deal?

A flurry of public discussion over the last week about a possible water conservation deal on the Lower Colorado River illustrates the central dilemma in the river basin’s water use problems. tl;dr This is a very important agreement. Modeling suggests that, if implemented, it could slow the steep decline in Lake Mead. The water conservation …

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Delta smelt, culture wars icon

Fiorina told delegates at the state Republican Party convention here that protections for the threatened Delta smelt were a product of the “tyranny of the left, the tyranny of environmentalists.” I fear discussions of the Delta smelt and environmental costs and benefits of moving California’s water from north to south have passed the point of …

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A new favorite in the “cracked mud journalism” genre

As a connoisseur of cracked mud and journalism of the drought apocalypse, I tip my hat to the folks at Sports Illustrated for this: “The Pacifics want to do their part to call attention to California’s drought conditions and so we won’t wash our uniforms for games after we draw 500 fans,” vice president of …

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San Diego’s great water use decoupling

The San Diego County Water Authority’s use peaked in 2002 at 732k acre feet. Last year it was down to 522kaf, a 29 percent drop even as population has risen by 12 percent. This is one of many examples of “decoupling” between growth and water use. As we adapt to conditions of increasing water scarcity …

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