Category Archives: Carbon Sequestration

ANNOUNCEMENT: Taking Soil Health Principles to Practice: SoilCon 2023

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SoicCon banner with dates: February 14, 14, 2023Soil health is a trending topic in agricultural production and environmental resilience to climate change, but what does the latest research tell us and how can we put it into practice for regional agricultural systems?

SoilCon, an annual conference hosted by the Washington State Soil Health Initiative (WaSHI), aims to address these questions and more. Speakers at the conference will explain what metrics are used when assessing soil health, how these may change by production system and region, and explore management practices to support a resilient soil system. The topics will be relevant to agriculture or natural resource professionals, producers, consultants, University faculty and students, and interested members of the public.  This free, virtual conference will bring research, extension, and production together to move soil health principles into practice.

SoilCon 2023 will be held February 14th & 15th, with sessions running from 8:00am-12:00pm PST each day. For more information and to register for SoilCon 2023, visit the event site. Attendance is free and open to all.  SoilCon is possible with support from Western Sustainable Agriculture Research and Education (WESARE).

Stay updated with SoilCon through Twitter and Instagram @WSU_SoilHealth.

SoilCon Event & Registration Link: https://pheedloop.com/wasoilcon23/site/home/

Top Articles from 2022 Show the Breadth and Diversity of Topics in AgClimate.net

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By Sonia A. Hall, Center for Sustaining Agriculture and Natural Resources, Washington State University, and AgClimate Lead Editor

Word cloud from 2022 article titles, with 2022 Top Reads! overlaid2022 has come to a close, and 2023 seems to have revved up and is roaring along. We are still early enough in the year, though, to look back on 2022 and reflect on what you, our readers, found worthy of your time and attention. Here are the three most read 2022 articles, and three still-popular articles from earlier years. It is worth taking a look. I was struck by the breadth of topics and production systems these articles discuss, which is reflective of the variety in the Pacific Northwest that we explicitly try to cover in AgClimate.net. All these articles also have something in common: they discuss science-based resources that can help agricultural and natural resource professionals understand the implications of a changing climate, and explore options to be better prepared for the future. That is what AgClimate.net is about. Enjoy these top reads in 2022! Continue reading →

What do Hurricanes and Soil Carbon Have in Common? The Wisdom of a Multi-Model Ensemble Approach

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By David I. Gustafson, Adjunct Research Faculty at Washington State University

Map of the Caribbean with lines curving from the northern coast of S. America across to a widening swath of western western Cuba and southern Florida

Figure 1. Example of “spaghetti model” predictions of potential hurricane paths. Source: Samantha Kendall, “Hurricane Ian Expected to Impact Florida This Week,” posted on September 22, 2022, AllEars.net (https://allears.net/2022/09/22/tropical-weather-system-could-strengthen-to-hurricane-and-threaten-florida-next-week/).

“It’s difficult to make predictions, especially about the future.” So goes an apparently ancient Danish aphorism also mistakenly credited to a wide range of humorists, from Yogi Berra to Mark Twain – and even to a Nobel Laureate, Niels Bohr. Whatever its origins, it is undeniably true. I will discuss an approach for hedging our bets against an uncertain future. I will start with an example where this is already being done, and then we can tackle soil carbon. Continue reading →

Cleaning Stormwater with Sequestered Carbon

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By Chelsea Mitchell, PhD candidate, Washington State University, Washington Stormwater Center*

 

Runoff entering a bioretention system via a curb cut

Figure 1. Bioretention systems are designed to drain and filter stormwater runoff. Credit Carly Thompson, WSU Puyallup.

Stormwater runoff has become one of the greatest environmental challenges we face in western Washington, a region with heavy rainfall and widespread urbanization. In parts of the landscape dominated by impervious surfaces, such as roads, buildings, and parking lots, rainfall is not able to infiltrate the ground (Figure 1). Instead, the resulting runoff picks up pollutants, causes flooding and changes our waterways. These issues are expected to become more severe with population growth and climate change.

There is a bright spot on the horizon, though. A charcoal-like product known as biochar has potential to address these issues when used in stormwater management. Biochar is formed when biomass is heated under low or no oxygen conditions in a process called pyrolysis. By limiting the oxygen level, you limit combustion and the release of carbon dioxide during biochar production. The resulting material has a stable, carbon-rich structure which resists being degraded for hundreds to thousands of years, keeping the carbon locked in place. Continue reading →

The Basics of Carbon Markets and Trends: Something to Keep an Eye On

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By Karen Hills, Center for Sustaining Agriculture and Natural Resources, Washington State University

Certain carbon markets could provide a win-win for producers and environmental interests pursuing reduction in emissions. Photo: Scott McLeod under CC BY 2.0.

The ability to store carbon in soils—to sequester carbon—has been receiving increased attention lately, including on AgClimate.net. Recent posts included articles about potential for croplands in the inland Pacific Northwest to sequester carbon and an article on the emerging carbon markets and their relevance for fruit and vegetable producers. Carbon markets offer the promise of monetizing the benefits of practices that add carbon to the soil, and are also good for soil health. If these markets are effective, they would provide a win-win for producers and environmental interests.

Thanks to the wonders of a zoom-friendly world, I recently attended a mini-workshop hosted by the University of Florida and the Institute of Food and Agricultural Extension where we explored carbon markets. Continue reading →

ANNOUNCEMENT: SoilCon is Returning in February 2022! Register Today

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Logo. SoilCon: Washington Soil Health Week, February 22-23, 2023 #WASoilConThe Washington State Soil Health Initiative, with support from Western Sustainable Agriculture Research and Education, is proud to announce that SoilCon is returning in 2022. This virtual conference will bring research, extension, and production together to discuss soil health parameters at a local, regional, and global scale. The conference will be held February 22nd & 23rd, with sessions from 8:00am-12:00pm PST each day.

Continue reading →

Building Better Biochar Breakthroughs: A Roadmap for Biochar Research

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By Embrey Bronstad, Center for Sustaining Agriculture and Natural Resources, Washington State University

What is the first thing you think when you hear “Black Gold”? Is it the theme song for the Beverly Hillbillies? A baritone “Texas Tea”? Well, some people think “BIOCHAR!”

Hand holding a handful of dark, soil-like substance

A climate and farming boon: Biochar! Photo: Flickr user mavnjess under CC BY-NC 2.0.

Now, if you are reading this article, you probably know what biochar is. You have probably heard about its benefits when integrated with compost or used in dairy lagoons. A clear opportunity exists for the implementation of biochar technology to mitigate climate change through its ability to sequester carbon. Indeed, a recent estimate suggests that implementation of biochar at scale in Washington State could offset between 8 and 19% of the state’s greenhouse gas emissions (Amonette 2021a). Application of biochar to agricultural soils may also help producers adapt to climate change by improving soil water-holding capacity in settings where water resources during the growing season are expected to become scarcer. Also, by enhancing formation of soil organic matter, these amendments would increase soil health and resilience, thereby helping to ensure continued high levels of agricultural production as the climate changes. In addition to these climatological and agricultural benefits, biochar has great potential to address wildfire risk, improve forest health, restore ecosystem services, and revitalize rural economies (Amonette et al., 2021b).

Despite a burgeoning library of research into biochar over the last two decades, there remain significant knowledge gaps, Continue reading →

The ‘Carbon Market Bazaar’: Future Windfall for Producers or Just Hot Air?

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By David I. Gustafson, Adjunct Research Faculty at Washington State University

This article is part of a series, Climate Friendly Fruit & Veggies, highlighting work from the Fruit & Vegetable Supply Chains: Climate Adaptation & Mitigation Opportunities (F&V CAMO) project, a collaborative research study co-led by investigators at the University of Florida and the Agriculture & Food Systems Institute. Other collaborators include researchers at the University of Arkansas, University of Illinois, the International Food Policy Research Institute, the World Agricultural Economic and Environmental Services, and Washington State University. This project seeks to identify and test climate adaptation and mitigation strategies in fruit and vegetable supply chains.

 

Sellers along a high-ceiling building show their wares, including rugs, bags, and many other items

Emerging carbon markets for U.S. agriculture today may be compared to a Middle Eastern bazaar: hints of danger and mystery. But there might be a genuine bargain that could be the perfect and profitable fit for your operation. Photo: Blondinrikard Froberg under CC BY 2.0.

I’m a fan of action movies, where a Middle Eastern bazaar is a popular place for high-speed chases. Even without the careening bullets and motorcycles, there are hints of danger and mystery amidst the clamor and unknown languages filling the air. You barter over the selling price of exotic objects that cannot be found anywhere else. Am I about to pay ten times what something is really worth? So it is with the emerging carbon market and U.S. agriculture today. Major companies like Bayer and upstarts like Indigo Ag and Nori are now offering to purchase carbon credits directly from producers for the adoption of new practices they agree to begin employing on their fields. But what is this worth to producers? Continue reading →

Get out the Map! A Soil Health Roadmap for Washington

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By Karen Hills, Center for Sustaining Agriculture and Natural Resources, Washington State University

Two hands holding a handful of dark soil

Maintaining and improving soil health can result in benefits both on- and off-farm. Photo: Chad Kruger.

Soil has been called “the living skin of the Earth.” The effort to maintain the health of this “living skin” in Washington got a boost in 2021 when the State Legislature passed the Washington Soil Health Initiative with a $2.1 million annual allocation (half of which goes to Washington State University). Washington State is just one of many states in the U.S. where interest in soil health has resulted in initiatives focused on maintaining soil health on working lands, but, notably, no other state’s soil health initiative is investing as much into research as Washington’s. Soil health is defined by the USDA NRCS as “…the continued capacity of soil to function as a vital living ecosystem that sustains plants, animals, and humans.” Soil health is often described as a “win-win” with positive outcomes both on-farm and off-farm. For example, on-farm benefits include improved soil tilth, nutrient cycling, water holding capacity, and disease suppression. Off-farm benefits include reduced soil erosion and improved water quality, as well as reducing the impact on our climate, most directly through carbon sequestration.

The win-win nature of soil health allowed the Washington Soil Health Initiative to gain support from commodity groups in Washington as well as environmental organizations. Continue reading →

Here’s the Dirt on Carbon Sequestration Potential in Cropland Soils

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By Nicole Bell, Center for Sustaining Agriculture and Natural Resources, Washington State University

Aerial view of green and dry center pivot circles with the Columbia River in the background

Soils with carbon sequestration potential can include irrigated croplands in the Columbia River Basin. Photo: Doug Wilson/USDA ARS

In this era with record-setting temperatures multiple years in a row, scientists are looking for methods to sequester carbon to slow the process of climate change. Agriculture plays a key role in not just the global economy, but also the global carbon cycle: cropland soils have the potential to be either sinks or sources of greenhouse gases, notably carbon dioxide. The conversion of native ecosystems to cropland agriculture has resulted in enormous carbon losses, estimated to be between 20-70% of the original carbon stored in native soils in the US. The Pacific Northwest is an agricultural powerhouse: in 2017, Washington, Idaho, and Oregon produced $22 billion in agricultural production on over 42 million acres. That’s a lot of soil. I recently read a white paper by Georgine Yorgey and colleagues at Washington State University titled “Carbon sequestration potential in cropland soils in the inland Pacific Northwest: Knowledge and gaps,” that summarizes research on carbon sequestration in the inland Northwest. It turns out that it is not a one-size-fits-all answer: the potential of certain croplands to either release or sequester carbon depends on climate, the cropping system, the soil type, and other factors. Fortunately, though, some soils do have great carbon sequestration potential. Continue reading →