Environment & Energy
Related: About this forumTo Kick Climate Change, Replace Corn With Pastured Beef
By Tom Philpott
Corn is by far the biggest US crop, and a network of corporations has sprouted up that profits handsomely from it. Companies like Monsanto and Syngenta sell the seeds and chemicals used to grow it, while Cargill, Archer Daniels Midland, Tyson, and their peers buy the finished crop and transform it into meat, ethanol, sweetener, and a range of food ingredients. Known in Washington as King Corn, the corn lobby wields formidable power in political circles.
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But what about the rest of us? It seems insane to throw our lot with an agriculture regime that's so vulnerable to climate change. What else could we be doing with all of that that prime Midwestern farmland? A paper by researchers from the University of Tennessee and Bard College, published in the journal Climate Management, proposes an answer: Scrap the ethanol mandates and convert a large portion of land now devoted to corn to pasture land for intensively managed beef cows.
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The authors create a model in which the US government cancels ethanol mandates, which would basically destroy the corn ethanol market and cause the price of corn to drop. If farmers responded to low corn prices by letting their cropland revert to native prairie and put beef cows on it to graze, they argue, their land would store significant amounts of carbon in soilmore than offsetting cow-related greenhouse gas emissions like methanethus helping stabilize the climate. Their bottom line:
Results indicate that up to 10 million ha [24.7 million acres, more than a quarter of land currently devoted to corn] about of could be converted to pastureland, reducing agricultural land use emissions by nearly 10 teragrams carbon equivalent per year, a 36% decline in carbon emissions from agricultural land use.
Now, to get those climate benefits, the authors stress, would have to use an emerging technique known as management-intensive grazing, in which cattle are moved regularly from patch of land to patch of land, grazing intensively at each stop while leaving the rest of the pasture to recover at length. This style of grazing, they reportmade famous by Virginia farmer Joel Salatinis much more adept at sequestering carbon in soil than most forms currently used.
http://www.motherjones.com/tom-philpott/2012/04/our-corn-driven-agriculture-vulnerable-climate-change (article)
https://motherjones.com/files/hellwinckel_phillips_carbonmanagement.pdf (study)
I just finished reading the book Folks, This Ain't Normal by author/farmer Joel Salatin (whom this model is based on), and was pleasantly surprised by this article.
In an ingenious example of biomimicry (following "nature's template" , Salatin replicates the herbivore-plant symbiotic relationship in nature by moving cows from paddock to paddock and allowing them to "mow" the grass and to leave their nutrient-rich excrement to fertilize the land. Three days later, he brings in an "egg-mobile" filled with chickens to dig through the manure (they go for the fly larvae), which spreads it out and works the natural fertilizer into the ground. This is how healthy soil is built, and it, in affect, "heals the land." And having healthy soil is one of the most efficient ways we can sequester carbon. Especially if we were to replace some of the swaths of petro-chemical heavy, mono-culture cropland (like corn, soy, and grain) with this technique, as suggested by both Salatin and this new study. Here's a short clip of his methods in action:
The point would also be to take cows out of factory farms - where their manure turns toxic due to being fed entirely unnatural feed and shot up with antibiotics and growth hormones turning them into a liability - and move them into these pastures, turning them into one of our (and the planet's) greatest assets. What I'm saying is that it's not the cow's fault, it's completely on us and our poor management of them:
"In fact, the cow, or domestic herbivore if you will, is the most efficacious soil-building, hydrology-cycling, carbon-sequestering tool at the planet's disposal. Yes, the cow has done a trememndous amount of damage. But don't blame the cow. The managers of the cow have been and continue to be the problem. The same animal mismanaged to abuse the ecology is the greatest hope and salvation to heal the ecology."
(Salatin, Folks, This Ain't Normal)
As he describes it, herbivores naturally "restart nature's biomass." In that:
"The herbivore is nature's grassland pruner to stimulate far more production and health then could be achieved if the plant were left alone... The main point is to understand the dramatic soil-building capabilities of the grass-herbivore relationship, and the symbiosis between the two."
It's a high tech-meets-low tech solution - high tech because of the incredibly light weight/maneuverable electric fencing to guide and "manage" where the graze (and use of four wheelers, in some cases - like to move the "egg-mobile" , and "low tech" because you're following nature's course and allowing the cow to do the majority of the "work."
Other articles worth reading:
Farmer Joel Salatin Puts 'Nature's Template' To Work
http://www.virginia.edu/uvatoday/newsRelease.php?id=9791
Rebel with a Cause: Local Food Can Feed the World
http://flavormagazinevirginia.com/rebelwithacause-localfoodcanfeedtheworld/
Here's an hour-long talk of his that's worth watching where he goes into more detail:
Bluenorthwest
(45,319 posts)The other stuff....it ain't normal.
kristopher
(29,798 posts)diane in sf
(3,916 posts)fill a similar niche.
drokhole
(1,230 posts)...helping to make them so rich, fertile and healthy with the "deepest topsoil recorded" in the world. In his book, Salatin also points out that, "we now know that North America contained nearly three times as many pounds of herbivores (bison, elk, antelope, deer) five hundred years ago as it does today." Meaning, even the "mass" of cows we have now wouldn't be a problem if they were appropriately managed.
Harmony is a wonderful way of putting it, because the symbiotic relationship itself is nature's harmony (which is simply nature itself). It reminds me of the the concept of mutualism, which denotes the bee's relationship with the flower:
"Mutualism is the association between unlike organisms that is beneficial to both. Bees can't survive without the flowers and the flowers' existence depends on the bees."
Rather than a "bee" here and a "flower" there, it's a total inseparable "bee-flower" movement (almost like rather than space and time, it's the space-time continuum). It almost seems the same way with herbivores and forage - it might be better thought of (or, at least, understood) as the herbivore-forage continuum. As Salatin explains:
"In a very practical sense, grasslands are the lungs of the earth. They are the rapid cycler, the rapid breather, if you will. Without herbivores, grasslands are lethargic and anemic. Some argue that grass would not exist without herbivores because it is the periodic grazing that freshens up the plant. If not for periodic pruning, the grass plants implode and gradually wither away. <...> The symbiotic relationship between herbivores and forage is one of the most powerful ecological principles we know. New evidence even suggests that when the animal tugs at the plant to shear off the grass tillers, it excites the roots into renewed productive activity. Kind of like exercise builds new muscles."
(And thanks for your response!)
eppur_se_muova
(36,274 posts)drokhole
(1,230 posts)Kolesar
(31,182 posts)Such was the thesis of an agricultural scientist studying how to get soil to produce "forever" without inputs.
I grow vegetables with rock dust fertilizers as an input to my system. I also use seed meal, which is considered a waste product of soybean oil production.
drokhole
(1,230 posts)By Eliot Coleman
Organic farming is often falsely represented as being unscientific. However, despite the popular assumption that it sprang full born from the delusions of 60s hippies, it has a more extensive, and scientifically respectable, provenance. If you look back at the first flush of notoriety in the 1940s, the names most often mentioned, Sir Albert Howard and J. I. Rodale, rather than being the initiators, were actually just popularizers of a groundswell of ideas that had begun to develop some 50 years earlier in the 1890s.
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These new agriculturists were convinced that the thinking behind industrial agriculture was based upon the mistaken premise that nature is inadequate and needs to be replaced with human systems. They contended that by virtue of that mistake, industrial agriculture has to continually devise new crutches to solve the problems it creates (increasing the quantities of chemicals, stronger pesticides, fungicides, miticides, nematicides, soil sterilization, etc.) It wouldnt be the first time in the history of science that a theory based on a false premise appeared to be momentarily valid. Temporary functioning is not proof of concept. For example, if we had a book of the long discredited geocentric astronomy of Ptolemy, which was based on the sun revolving around the earth, we could still locate Jupiter in the sky tonight thanks to the many crutches devised by the Ptolemaists to prop up their misconceived system. As organic agriculture has become more prominent, the orthodoxy of chemical agriculture has found itself up against its own Galileo. It will be interesting to see who recants.
The new thinking in agriculture was focused on three issues how can long lasting soil fertility be achieved? How can pest problems in agriculture be prevented? How can the nutritional value of food crops be optimized? By the 1940s the answers to those questions had coalesced into a new biologically based concept of agriculture that can be simply stated as follows:
1. Soil fertility can be raised to the highest levels by techniques that increase the percentage of soil organic matter, by rotating crops and livestock, and by maintaining soil minerals through using natural inputs such as limestone and other finely ground rock powders.
2. The plant vigor resulting from doing #1 correctly renders plants resistant to pests and diseases.
3. The plant quality resulting from doing #1 correctly provides the most nutritious possible food for maintaining human beings and their animals in bounteous health.
All three begin with and depend upon how the soil is treated. But the fertility of that crucial soil factor is not a function of purchased industrial products. It evolves from intelligent human interaction with the living processes of the earth itself. These are processes that are intrinsic to any soil maintained with organic matter. They are what the earth does. I am puzzled by how the practical success today of the many farms managed on biological rather than on chemical lines can coexist with the striking lack of interest (antagonism actually) from scientific agriculture in exploring why these farms succeed. The foundation upon which our Maine farm operates a sense that the systems of the natural world offer elegantly designed patterns worth following appears to be an indecipherable foreign language to agricultural science.
(more at the link: http://grist.org/sustainable-farming/2011-04-20-eliot-coleman-essay-organic/)
It's a brilliant article (from about a year ago) that goes well in-depth, including reasons why high-profit industry aren't as interested in these methods:
But points out that:
And I absolutely love this:
There are plenty of other highlights, but I'll stop there. It's a lengthy article, but well worth the read. Finally, for those interested, here's a wonderful documentary currently available on Hulu:
Dirt! The Movie
http://www.hulu.com/watch/191666/dirt-the-movie
CRH
(1,553 posts)so many are unaware, there are alternatives to the corporate farms and the baggage they carry below the skirts of government subsidies.
drokhole
(1,230 posts)Last edited Tue May 8, 2012, 12:26 PM - Edit history (1)
source: Time
On a farm in coastal Maine, a barn is going up. Right now it's little more than a concrete slab and some wooden beams, but when it's finished, the barn will provide winter shelter for up to six cows and a few head of sheep. None of this would be remarkable if it weren't for the fact that the people building the barn are two of the most highly regarded organic-vegetable farmers in the country: Eliot Coleman wrote the bible of organic farming, The New Organic Grower, and Barbara Damrosch is the Washington Post's gardening columnist. At a time when a growing number of environmental activists are calling for an end to eating meat, this veggie-centric power couple is beginning to raise it. "Why?" asks Coleman, tromping through the mud on his way toward a greenhouse bursting with December turnips. "Because I care about the fate of the planet."
(snip)
So how can Coleman and Damrosch believe that adding livestock to their farm will help the planet? Cattleman Ridge Shinn has the answer. On a wintry Saturday at his farm in Hardwick, Mass., he is out in his pastures encouraging a herd of plump Devon cows to move to a grassy new paddock. Over the course of a year, his 100 cattle will rotate across 175 acres four or five times. "Conventional cattle raising is like mining," he says. "It's unsustainable, because you're just taking without putting anything back. But when you rotate cattle on grass, you change the equation. You put back more than you take."
(snip)
To Allan Savory, the economies-of-scale mentality ignores the role that grass-fed herbivores can play in fighting climate change. A former wildlife conservationist in Zimbabwe, Savory once blamed overgrazing for desertification. "I was prepared to shoot every bloody rancher in the country," he recalls. But through rotational grazing of large herds of ruminants, he found he could reverse land degradation, turning dead soil into thriving grassland.
Like him, Coleman now scoffs at the environmentalist vogue for vilifying meat eating. "The idea that giving up meat is the solution for the world's ills is ridiculous," he says at his Maine farm. "A vegetarian eating tofu made in a factory from soybeans grown in Brazil is responsible for a lot more CO2 than I am." A lifetime raising vegetables year-round has taught him to value the elegance of natural systems. Once he and Damrosch have brought in their livestock, they'll "be able to use the manure to feed the plants, and the plant waste to feed the animals," he says. "And even though we can't eat the grass, we'll be turning it into something we can."
(more at the link: http://www.time.com/time/magazine/article/0,9171,1953692-1,00.html)
drokhole
(1,230 posts)Another one along the same lines:
Farming With Nature - Permaculture with Sepp Holzer
AlecBGreen
(3,874 posts)vote with your dollars. grass-fed beef is good for you, the economy, and the environment!
drokhole
(1,230 posts)Would've made a separate thread, but it fits the theme:
GLYNWOOD: (re)building a regional food system
http://vimeo.com/29805997
hatrack
(59,587 posts)Ta-Tonka!
drokhole
(1,230 posts)Last edited Tue Mar 5, 2013, 09:43 PM - Edit history (1)
Savory just gave a talk at the TED2013 conference. Waiting for the video, but here's the article:
Fighting the growing deserts, with livestock: Allan Savory at TED2013
Allan Savory has dedicated his life to studying management of grasslands. And if that doesnt sound exciting, just wait, because it touches on the deepest roots of climate change and the future of the planet.
The most massive, tsunami, perfect storm is bearing down on us, is the grim beginning to Savorys talk. This storm is the result of rising population, of land that is turning to desert, and, of course, climate change. Savory is also unsure of the belief that new technology will solve all of the problems. He agrees that only tech will create alternatives to fossil fuels, but thats not the only thing causing climate change."
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So what can they do? There is only one option left to climatologists and scientists. That is to do the unthinkable: to use livestock, bunched and moving, as a proxy for the herds. Those herds mulch it down, leaving both the trampled grass and their dung. The grass is then free to grow without having damaged with fire.
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The results are stunning. For location after location he shows two comparison photos, one using his technique, one not. The difference is, a profound change, and hes not kidding in some cases the locations are unrecognizable (in one case the audience gasped). Not only is the land greener, crop yields are increasing. For example, in Patagonia, an expanding desert, they put 25,000 sheep into one flock. They found an extraordinary 50% improvement in production of land in the first year.
(more at link)
Edit to add:
Now, with video!