OK, not really “news”, but I made you click, and this is the Internet, so let’s proceed: Scientists believe the avocado, with its enormous wood-like seed, evolved to be eaten by enormous animals that lived thousands of years ago. One of these animals would chow down on some avocados and either leave partially-eaten fruit (and …
For those following efforts to cobble together an expanded Colorado River water conservation deal (that’s all of you, right?) there are a couple of important issues to unpack in Ian James’ excellent interview published yesterday with Kevin Kelley, general manager of the Imperial Irrigation District. Imperial, the largest single water using agency on the Colorado, …
The BBC reports on the oldest working door in Britain: Archaeologists discovered the oak door in Westminster Abbey was put in place in the 1050s, during the reign of the Abbey’s founder, Edward the Confessor. It makes it the only surviving Anglo Saxon door in Britain. We most often think about the use of tree …
Continue reading ‘The oldest working door in Britain. We know because tree rings!’ »
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 …
Continue reading ‘Melons, boats, fish: the new Tusher Dam on the Green’ »
BREAKING: Just vetoed #SB1268 & #SB1400. We must protect Arizona's water future. pic.twitter.com/SzqsvxuXsX — Doug Ducey (@dougducey) May 9, 2016 Background: Water experts denounce Arizona groundwater bills, ask Ducey to veto
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: …
Continue reading ‘The inevitable decline of irrigated acreage in California’s central valley’ »
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 …
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 …
In contrast to common assumptions of positive feedbacks, we find that insects generally reduce the severity of subsequent wildfires. Specific effects vary with insect type and timing, but both insects decrease the abundance of live vegetation susceptible to wildfire at multiple time lags. By dampening subsequent burn severity, native insects could buffer rather than exacerbate …
Continue reading ‘The relationship between beetle kills and forest fire’ »
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 …