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Boser A, Caylor K, Larsen A, Pascolini-Campbell M, Reager JT, Carleton T. Field-scale crop water consumption estimates reveal potential water savings in California agriculture. Nat Commun 2024; 15:2366. [PMID: 38528086 DOI: 10.1038/s41467-024-46031-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 02/08/2024] [Indexed: 03/27/2024] Open
Abstract
Efficiently managing agricultural irrigation is vital for food security today and into the future under climate change. Yet, evaluating agriculture's hydrological impacts and strategies to reduce them remains challenging due to a lack of field-scale data on crop water consumption. Here, we develop a method to fill this gap using remote sensing and machine learning, and leverage it to assess water saving strategies in California's Central Valley. We find that switching to lower water intensity crops can reduce consumption by up to 93%, but this requires adopting uncommon crop types. Northern counties have substantially lower irrigation efficiencies than southern counties, suggesting another potential source of water savings. Other practices that do not alter land cover can save up to 11% of water consumption. These results reveal diverse approaches for achieving sustainable water use, emphasizing the potential of sub-field scale crop water consumption maps to guide water management in California and beyond.
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Affiliation(s)
- Anna Boser
- Bren School of Environmental Science and Management, UC Santa Barbara, 2400 Bren Hall, Santa Barbara, 93106, CA, USA.
| | - Kelly Caylor
- Bren School of Environmental Science and Management, UC Santa Barbara, 2400 Bren Hall, Santa Barbara, 93106, CA, USA
- Department of Geography, UC Santa Barbara, Ellison Hall, Santa Barbara, 93106, CA, USA
| | - Ashley Larsen
- Bren School of Environmental Science and Management, UC Santa Barbara, 2400 Bren Hall, Santa Barbara, 93106, CA, USA
| | - Madeleine Pascolini-Campbell
- NASA Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, 91109, CA, USA
| | - John T Reager
- NASA Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, 91109, CA, USA
| | - Tamma Carleton
- Bren School of Environmental Science and Management, UC Santa Barbara, 2400 Bren Hall, Santa Barbara, 93106, CA, USA
- National Bureau of Economic Research, 1050 Massachusetts Avenue, Cambridge, 02138, MA, USA
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Coral C, Mithöfer D. Contemporary narratives about asymmetries in responsibility in global agri-food value chains: the case of the Ecuadorian stakeholders in the banana value chain. AGRICULTURE AND HUMAN VALUES 2022; 40:1-20. [PMID: 36530205 PMCID: PMC9734673 DOI: 10.1007/s10460-022-10405-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Global concerns over environmental and social issues in agrifood value chains have increased and are reflected in a number of voluntary sustainability standards and regulatory initiatives. However, these initiatives are often based on poor knowledge of production realities, creating a disconnect between producing and consuming countries. Through narrative analysis, this paper reveals asymmetries in the responsibilities of the various actors participating in Ecuadorian banana value chains, providing clear problem- and solution-framings. Despite the broad range of actors interviewed, our analysis reveals convergence in two main narratives that reflect asymmetries amongst local actors in terms of their ability to participate, ability to maintain participation, and adaptation strategies in view of changing external factors. One narrative relates to sustainability adaptations, the cost of which is not shared among all value chain actors. This is combined with a downward trend in the price of bananas and the lack of a differentiated price to account for losses and costs arising from increasing sustainability standards. Another narrative reflects a value chain structure that threatens small-farm survival. It highlights the urgency of protecting small-farm activity by enforcing national regulation and developing new market segments/models that understand small-scale producer reality. Study results show that the multitude of standards is not seen as beneficial and that downstream actors rather wish for common minimum standards to reduce business costs. Compatibility between standards and local realities should be a priority for global sustainability standards adoption. Building on the problems and solution-framings of local value chain links, we give voice to local actors, and link their perceptions to existing literature and discursive politics while contributing to social transparency and addressing the democratic deficit in agrifood value chains.
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Affiliation(s)
- Claudia Coral
- Department of Agricultural Economics, Agrifood Chain Management, Humboldt Universität zu Berlin, Invalidenstr. 42, 10115 Berlin, Germany
- Sustainable Land Use in Developing Countries, Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Straße 84, 15374 Müncheberg, Germany
| | - Dagmar Mithöfer
- Department of Agricultural Economics, Agrifood Chain Management, Humboldt Universität zu Berlin, Invalidenstr. 42, 10115 Berlin, Germany
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Schulp CJE, Komossa F, Scherer L, van der Zanden EH, Debolini M, Piorr A. The Role of Different Types of Actors In The Future of Sustainable Agriculture In a Dutch Peri-urban Area. ENVIRONMENTAL MANAGEMENT 2022; 70:401-419. [PMID: 35507108 PMCID: PMC9065672 DOI: 10.1007/s00267-022-01654-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
Peri-urban areas support a broad range of multifunctional demands for public goods. In northwest Europe, peri-urban areas tend to overlap with intensive agricultural land, resulting in conflicts between agricultural use and the public good demands of residents. Sustainable intensification (SI) of agriculture might help reconcile agricultural and well-being goals, but it is unclear how the mix of actors in a peri-urban setting can trigger or restrain SI. In a Dutch case study, we explored how SI of agriculture can contribute to making peri-urban areas more sustainable, and which actors are key enabling factors for implementing SI. We used interviews, surveys, workshops, and empirical analysis to obtain insight into the stakeholder's vision of a sustainable future for the case study area, the farming system and actor network. We integrated these insights in a Bayesian Belief Network, where we linked the actor network to implementation of three SI measures (farm-level efficiency measures, small landscape elements, and direct sales), and used sensitivity analysis to model effects of support for implementation by different groups of actors. The case study has a dense stakeholder network, where, dependent on the SI measure, farmers are triggered by all actors to implement SI, or have a stronger role in uptake themselves. The sensitivity analysis suggested that the future preferred by the stakeholders requires broad support of all actors involved, with local actors without a formal role being essential for uptake. Overall, trade-offs among public goods are almost inevitable when taking up SI measures.
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Affiliation(s)
- Catharina J E Schulp
- Institute for Environmental Studies, Environmental Geography Group, Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081HV, Amsterdam, the Netherlands.
| | - Franziska Komossa
- Institute for Environmental Studies, Environmental Geography Group, Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081HV, Amsterdam, the Netherlands
| | - Laura Scherer
- Institute of Environmental Sciences (CML), Leiden University, Einsteinweg 2, 2333 CC, Leiden, the Netherlands
| | - Emma H van der Zanden
- Institute for Environmental Studies, Environmental Geography Group, Vrije Universiteit Amsterdam, De Boelelaan 1111, 1081HV, Amsterdam, the Netherlands
- PBL Netherlands Environmental Assessment Agency, Bezuidenhoutseweg 30, 2594 AV, The Hague, the Netherlands
| | - Marta Debolini
- UMR EMMAH INRAE/AU, 228 route de l'Aérodrome, 89914, Avignon, France
| | - Annette Piorr
- Leibniz Centre for Agricultural Landscape Research (ZALF) e.V., 15374, Müncheberg, Germany
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Securing Commitments from Stakeholders in 10 EU Member States—The Organic Seed Declaration to Foster Stakeholder Involvement. SUSTAINABILITY 2022. [DOI: 10.3390/su14159260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The new European organic regulation 2018/848 aims to phase out the use of non-organic seeds in organic farming by 2036. At present, achieving this goal in countries with a poorly developed organic seed sector is difficult, and therefore there is a great need to increase organic seed supply by promoting the development of the organic seed sector in Europe. This paper presents a conceptual framework to secure voluntary stakeholder involvement in the process of a gradual increase in the supply of organic seeds for organic farming. Stakeholders showed a high motivation to commit to concrete action points for moving forward. In addition, further actors were involved in the fulfillment of the commitments, a sign of a positive network effect in favor of organic seed production and use. The study indicates application potential and can complement mandatory policy instruments. Further progress monitoring is necessary to ensure that established structures maintain their function, and to keep the shared sense of responsibility alive.
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Same Same but Different? A Quantitative Exploration of Voluntary Sustainability Standards in Agriculture. SUSTAINABILITY 2022. [DOI: 10.3390/su14095060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Private governance by means of voluntary sustainability standards (VSS) has become ubiquitous, especially for the governance of sustainability issues along global value chains in agriculture. As VSS have multiplied and proliferated, their commonalities and differences are not always easily discernable to value chain participants and their stakeholders. Concurrently, extant research is ambiguous on the degree of harmonization or diversification of standards currently available. Two core aspects have received particular attention: the meaning of sustainability reflected in VSS and the degree of stakeholder inclusion in standard governance. It is the purpose of this study to compare VSS from different types of standard setting initiatives regarding these two core aspects by analyzing their purported sustainability worldview and the inclusiveness of their institutional design. The quantitative exploration covers exemplars offered by inter-governmental organizations, business initiatives, non-governmental organizations as well as multi-stakeholder initiatives. The analysis finds significant ambiguity of sustainability worldviews across the sample, as well as almost universal uptake of design characteristics to enhance inclusiveness irrespective of the type of standard setting initiative. However, there are also significant differences in the way sustainability is understood among VSS offered by different standard setting initiatives.
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Lips D. Fuelling the future of sustainable sugar fermentation across generations. ENGINEERING BIOLOGY 2022; 6:3-16. [PMID: 36968555 PMCID: PMC9995162 DOI: 10.1049/enb2.12017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/15/2021] [Accepted: 11/21/2021] [Indexed: 11/20/2022] Open
Abstract
Biomanufacturing in the form of industrial sugar fermentation is moving beyond pharmaceuticals and biofuels into chemicals, materials, and food ingredients. As the production scale of these increasingly consumer-facing applications expands over the next decades, considerations regarding the environmental impact of the renewable biomass feedstocks used to extract fermentable sugars will become more important. Sugars derived from first-generation biomass in the form of, for example, corn and sugarcane are easily accessible and support high-yield fermentation processes, but are associated with the environmental impacts of industrial agriculture, land use, and competition with other applications in food and feed. Fermentable sugars can also be extracted from second- and third-generation feedstocks in the form of lignocellulose and macroalgae, respectively, potentially overcoming some of these concerns. Doing so, however, comes with various challenges, including the need for more extensive pretreatment processes and the fermentation of mixed and unconventional sugars. In this review, we provide a broad overview of these three generations of biomass feedstocks, outlining their challenges and prospects for fuelling the industrial fermentation industry throughout the 21st century.
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Practical considerations for delivering on the sustainability promise of fermentation-based biomanufacturing. Emerg Top Life Sci 2021; 5:711-715. [PMID: 34495334 PMCID: PMC8726053 DOI: 10.1042/etls20210129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/18/2021] [Accepted: 08/24/2021] [Indexed: 11/17/2022]
Abstract
Increasingly, bio-based products made via sugar-powered microbial cell factories and industrial fermentation are reaching the market and presenting themselves as sustainable alternatives to fossil and animal-based products. The sustainability potential of biotechnology, however, has been shown to come with trade-offs and cannot be taken for granted. Shared environmental impact hotspots have been identified across industrial fermentation-based products, including biomass production, energy consumption, and end-of-life fate. Based on both these patterns and our direct experience in preparing for the commercial-scale production of Brewed Protein™, we outline practical considerations for improving the sustainability performance of bio-based products made via industrial fermentation.
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Rein PW. Developments in sugarcane processing over the past 15 years. SUGAR INDUSTRY 2019. [DOI: 10.36961/si23453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Developments in the technology of production of sugar from sugarcane tend to be incremental improvements in an effort to reduce costs and boost revenue. Nonetheless the developments are significant and contribute to sustainable sugarcane enterprises. Some technologies have adapted to changing environmental conditions, and more attention is being given to boosting revenue through associated activities, particularly in enhancing the potential for sugarcane operations to exploit the energy value of sugarcane. This paper outlines recent developments of interest in processing sugarcane.
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Estrada A, Garber PA, Chaudhary A. Expanding global commodities trade and consumption place the world’s primates at risk of extinction. PeerJ 2019. [DOI: 10.7717/peerj.7068] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
As a consequence of recent human activities. populations of approximately 75% of the world’s primates are in decline, and more than 60% of species (n = 512) are threatened with extinction. Major anthropogenic pressures on primate persistence include the widespread loss and degradation of natural habitats caused by the expansion of industrial agriculture, pastureland for cattle, logging, mining, and fossil fuel extraction. This is the result of growing global market demands for agricultural and nonagricultural commodities. Here, we profile the effects of international trade of forest-risk agricultural and nonagricultural commodities, namely soybean, oil palm, natural rubber, beef, forestry products, fossil fuels, metals, minerals, and gemstones on habitat conversion in the Neotropics, Africa, and South and Southeast Asia. Total estimated forest loss for these regions between 2001 and 2017 was ca 179 million ha. The average percent of commodity-driven permanent deforestation for the period 2001–2015 was highest in Southeast Asia (47%) followed by the Neotropics (26%), South Asia (26%), and Africa (7%). Commodities exports increased significantly between 2000 and 2016 in all primate range regions leading to the widespread conversion of forested land to agricultural fields and an increase in natural resource extraction. In 2016, US $1.1 trillion of natural-resource commodities were traded by countries in primate range regions. The Neotropics accounted for 41% of the total value of these exports, Southeast Asia for 27%, Africa 21%, and South Asia 11%. Major commodity exporters in 2016 were Brazil, India, Indonesia, Malaysia and South Africa, countries of high primate diversity and endemism. Among the top 10 importers were China, the US, Japan, and Switzerland. Primate range countries lag far behind importer nations in food security and gross domestic product per capita, suggesting that trade and commodity-driven land-use have done little to generate wealth and well-being in primate habitat countries. Modeling of land-use and projected extinction of primate species by 2050 and 2100 under a business as usual scenario for 61 primate range countries indicate that each country is expected to see a significant increase in the number of species threatened with extinction. To mitigate this impending crisis, we advocate the “greening” of trade, a global shift toward a low-meat diet, reduced consumption of oil seed, diminished use of tropical timber, fossil fuels, metals, minerals, and gemstones from the tropics, accompanied by a stronger and sustained global resolve to regulate and reverse the negative impacts of growing unsustainable global demands and commodity trade on income inequality, and the destruction of primates and their habitats.
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Affiliation(s)
- Alejandro Estrada
- National Autonomous University of Mexico, Institute of Biology, Mexico City, Mexico
| | - Paul A. Garber
- Department of Anthropology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Abhishek Chaudhary
- Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur, India
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