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Tag Archives | climate change

The Huge Impact of Mycorrhizal Colonization on Plant and Soil Health

Mycorrhizal inoculation effecta

This University of Florida photo shows the effect of mycorrhizal inoculation on maize drought response. Mycorrhizal colonization (front left and back right) helps plants avoid severe drought losses compared to the control (front right and back left).

Leonardo da Vinci remarked, “in order to be a successful farmer one must know the nature of the soil.” Even today in the age of hydroponics, most of our food, over 98 percent by some estimates, is grown from field on a soil medium. Beyond growing our food, the way we treat our soil determines the nature of our environment and the climate.

There is a great and still relatively undeveloped agronomic and environmental opportunity that could make an important global difference. This opportunity is hidden underneath our feet, in the living soil. The soil is home to the most populous community on the planet. Around the seven continents, the living soil is the Earth’s most valuable bio-system, providing ecosystem services worth trillions of dollars. The most limiting resource for global food system is drought, with over 75 percent of the crop insurance outlay related to these events.

The vast majority of our cultivated soils are in an eroded and degraded state. As we increase demands on our soil to feed billions, we are losing it and depleting it at an unprecedented rate. Our ability to transform it will address both of these key issues. In addition to addressing drought and climate, the web of soil life is critical to maintaining and building soil resources we need now and into the foreseeable future.

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Interview: Author, Advocate Courtney White Unites Groups at Odds through Regenerative Agriculture

Courtney-WhiteFinding Common Ground

“Courtney, the Berlin Wall fell down up here.” These were the words of a Forest Service District Ranger back in 1998. He was talking about the wall between ranchers and environmentalists in the region, and people passing out the hammers and helping with the teardown were, and still are, called the Quivira Coalition. Courtney White, the subject of this month’s interview, co-founded Quivira in 1997 because he was dismayed and disheartened by the nasty, unceasing legal and ideological dogfighting over the disposition of Western lands. He thought it might be a good idea, for example, if environmentalists heard from scientists about the importance of fire to restoring grass. Or if ranchers and farmers heard from a peer about the advantages of moving livestock around, and heard it while conservationists and environmentalists were in the room. As the ranger indicated, the simple idea of bringing people together to relax the grip around each other’s throats and learn a few things, turned out to be terrifically well-timed and apt. After 17 years as director of Quivira, White decided to concentrate full-time on writing books, of which the eminently useful Two Percent Solutions for the Planet is only the latest example. Reached at home in Santa Fe, he graciously agreed to reflect on the past two decades of building coalitions and opening eyes.

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Book review: Resilient Agriculture: Cultivating Food Systems for a Changing Climate

by Laura Lengnick, book review by Chris Walters

resilient-agricultureThis is not a book composed of brisk summaries and sweeping statements. Laura Lengnick gets into the weeds without delay, devoting the first 100-odd pages to laying out the particulars of sensitivity and adaptability that affect farms buffeted by rapid changes in weather patterns. Given the size and complexity of the phenomena under discussion — as well as masses of fresh data being collected all the time — it’s something like a thumbnail sketch. But it’s an impressively detailed, lucid and well-organized introduction to a topic that could easily fill several volumes.

Lengnick asks the crucial question in the final paragraph of her book’s first third: “What are the barriers and opportunities to the development of a sustainable U.S. agriculture robust to the increasing pace and intensity of climate change?” The rest of the book is devoted to the answer as delivered by 25 sustainable producers from all over the land. Every region is represented, and readers are likely to encounter people they’ve already met either at conferences or in these pages. All of them sound like people you’d like to meet, and taken as a whole, the range of their responses to the bedevilments of the past few years are dazzling. Continue Reading →

Interview: Researcher, Author Eric Toensmeier Explores Practical, Effective Carbon Farming Strategies

Real-World Solutions

While this Eric Toensmeier_rgb (2)interview was being prepared a story surfaced on public radio about a couple of enterprising Americans who are taking advantage of changing policy to open a factory in Cuba. Their product? Tractors! The whole idea, the story helpfully explained, was to introduce “21st century farming” to the beleaguered island. By making it easier to tear up the soil. Clearly there is some distance to go before an accurate idea of 21st century farming penetrates the mainstream. It will take people like Eric Toensmeier. His new book, The Carbon Farming Solution, carries enough heft, range and detail to clear away forests of confusion. If the notion of leaving carbon in the soil is going to take its place next to that of leaving oil in the ground, this one-volume encyclopedia on the subject is exactly the kind of deeply informed work that’s required. Reached at his home in western Massachusetts, Toensmeier was exhilarated over finishing a project years in the making, and more than happy to talk about it.

This interview appears in the May 2016 issue of Acres U.S.A.

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Healing the Soil with Organic Methods

Healing Soil With Organic MethodsRodale Institute has launched a global campaign to generate public awareness of soil’s ability to reverse climate change, but only when the health of the soil is maintained through organic regenerative agriculture. The campaign calls for the restructuring of our global food system with the goal of reversing climate change through photosynthesis and biology. The white paper, “Regenerative Organic Agriculture and Climate Change: A Down-to-Earth Solution to Global Warming,” is the central tool of the campaign. If management of all current cropland shifted to reflect the regenerative model as practiced at the research sites included in the white paper, more than 40 percent of annual emissions could potentially be captured. If, at the same time, all global pasture was managed to a regenerative model, an additional 71 percent could be sequestered.

This article appears in the July 2014 issue of Acres U.S.A.