Posted by Bertie Weddell | November 6, 2014
Near the beginning of Roots: The Saga of an American Family, Alex Haley mentions dietary taboos among his Gambian ancestors. Eating monkeys, baboons, bullfrogs, wild pigs, and eggs of wild birds was forbidden. When I first read that passage, a good many years ago, I thought those taboos were wasteful superstitions. Much later, I wondered whether the taboos played a role in conservation, or whether they had other functions, such as promoting group cohesion, that were opaque to me. Read more »
Filed under Community and Society
Posted by Chad Kruger | November 4, 2014
In two prior posts (threats and variability), based on our research, I have argued that climate change is not likely to be a major cause for concern for agricultural production in the Pacific Northwest until at least mid-century. A little bit of warming and a little bit of CO2 elevation is actually positive for most crops in the PNW. In this post, I’m going to tell you why I might be wrong. Read more »
Filed under Climate Change
Posted by Chuck Benbrook | October 23, 2014
In early September I visited a remarkable organic farm on the coast of California. This farm has been in organic production for about 30 years, and its harvests of mostly organic tomatoes have been marketed through a variety of outlets in Northern California.
I arrived on the day picking had just begun on a sloping tomato field about 6 acres in size. The crop was exceptionally clean, with virtually no insect damage and few weeds. Minimal, organically approved control measures had been used, including applications of sulfur and releases of trichogramma (beneficial wasps), along with many hours of hand weeding.
Posted by Georgine Yorgey | October 21, 2014
In a previous post, I explained that available evidence currently indicates nitrous oxide emissions may be fairly low in the inland Pacific Northwest, compared to other cropland agricultural systems in the U.S. and world. If ongoing research confirms these early results, then I suggested that efforts to reduce nitrous oxide emissions need to focus on strategies that offered strong co-benefits. Read more »
Posted by Andrew McGuire | October 16, 2014
On a brown, August-dry field in Eastern Washington, a farmer in a combine cuts a 24-foot swath across a field of wheat. The harvested grain then begins a journey, first to the storage bin, then to the local elevator, on rail to a flour mill, by truck to a bakery, by oven to bread, and by car to a home where it is eaten. This is good; our foremost mandate to agriculture is to produce food. However, with this successful export of food from farm fields to nearby and distant cities comes a problem: the nutrients in the bread, the nutrients that we need from food, and that plants need to grow, are now far from the field they came from. How do we replace them?
High yields, which we want, increase the problem. A typical irrigated winter wheat field will yield 140 bushels per acre; about 5,600 loaves of bread. For a center pivot circle of 100 acres, the nutrients in those loaves amount to 182 pounds of N, 70 of P2O5 and 49 of K2O and smaller amounts of other essential nutrients that do not have to be replaced every year. All this ends up somewhere else (in people’s bodies or in sewage treatment plants); it will not be returned to the field1. Read more »
Posted by Chad Kruger | September 29, 2014
The observed temperature records of the US Pacific Northwest show a small, but statistically significant amount of warming of just over 1 degree F since the year 1900. A paper published in March of this year by Abatzaglou, Rupp and Mote (2014) used a multiple linear regression model to “tease out” the contributions of different influences on climate and “to apportion trends to internal climate variability, solar variability, volcanic aerosols, and anthropogenic forcing [a.k.a. human greenhouse gas emissions]”. Unsurprisingly, the finding of this study was as expected:
Anthropogenic forcing was a significant predictor of, and the leading contributor to, long-term warming; natural factors alone fail to explain the observed warming.
Filed under Climate Change
Posted by Chad Kruger | September 25, 2014
This week, CSANR released its annual BIOAg Program request for proposals for new research and extension projects. The RFP can be found here.
This competitive grant program is the key mechanism that CSANR has to engage a broad, interdisciplinary spectrum of WSU faculty in projects that further the development, understanding, and use of biologically intensive and/or organic principles, practices, and technologies to improve the sustainability of agriculture and food systems in Washington State. Read more »
Posted by Andrew McGuire | September 16, 2014
There is an ongoing debate about how to produce food for a growing population without losing more of our wild lands. Two options are being promoted; “land sparing” where production on current agricultural lands is intensified to produce more food thereby sparing the conversion of wild lands, and “land sharing” where agriculture and wild lands are integrated and small producing parcels are intermixed with wild lands. The former strategy is championed in a paper by Phalan et al. (2011) where the authors report that more bird and tree species were negatively affected by agriculture than benefitted from it. A contrary view from Tscharntke et al. (2012) argues that the land sparing view ignores the complexity of the real world, and that the land sharing strategy would produce more ecosystem services. From these two views, a range of options expand, all of which are being researched and debated. Read more »
Posted by Chad Kruger | September 12, 2014
One of the caveats I always state when presenting the results of our research on projected climate change impacts on PNW agricultural production is: we don’t yet know if climate change will disrupt our existing regional climate cycles. To date, the climate forecasts for our region indicate a future where climate change amplifies the current cycles – resulting in a future that is warmer and possibly slightly wetter on average, but still keeping the pattern of relatively short-cycling between wet and dry periods. These wet and dry periods rarely last for more than a couple of years. Read more »
Filed under Climate Change
Posted by Chad Kruger | September 9, 2014
In a recent interview that covered the gamut of oft-cited threats to agricultural sustainability and food security (drought, food safety, energy disruption, economics, terrorism, chemical pollution, genetic pollution, impacts on pollinators, soil erosion, climate change, etc.), I was asked which threat I thought was the biggest. I was completely stumped. For every threat that came to mind as “the big one” I could come up with at least two arguments why a different threat was bigger. Read more »
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