Research & reports

Christine Jie Li, John H. Schulz, Sa Tun Bo Bo · Journal of Community Practice · United States

Semi-structured interviews with 18 Burmese refugees in the United States explored their experiences across three types of community-assisted garden programs — individual backyard gardens, personal-use community gardens, and enterprise community-assisted gardens. The interviews produced three broad themes (benefits, challenges, and issues with recruitment and support), with reported benefits including strengthened family relationships, access to culturally relevant and fresh organic vegetables, reduced food budget spending, and improved social relationships, alongside challenges that the study describes as a complex mixture affecting refugees' nutritional, economic and social well-being.

Swayangsiddha Nayak, Lalita Dhal, Sheri Dorn, Julie H. Campbell · Urban forestry & urban greening · United States

A longitudinal qualitative participatory action research study conducted between 2023 and 2024 at a Southeastern U.S. university examined how international students engage with an autonomous, student-led campus community garden, using Berry's Acculturation Theory to explore motivations and the physical, social and psychological barriers they encountered. The study found a cyclical acculturation process in which the garden's autonomy fostered belonging through growing culturally relevant produce and intercultural exchange, while limited institutional support generated uncertainty, mistrust and communication barriers that caused students to oscillate between feelings of integration and separation, eventually prompting self-advocacy and co-leadership structures among the students.

Roberto Arturo Berríos Zepeda, Jorge Vírchez · OIDA International Journal of Sustainable Development · Canada

A 2026 article examines the city of Sudbury, Ontario, Canada, as a case of sustainable transformative economy at the municipal level. Historically defined by intensive mining and severe ecological degradation, the city has pursued environmental restoration and socio-economic change through combined efforts of local government, industry, universities, nonprofit organizations, and grassroots initiatives. It describes examples including the Junction Creek Stewardship Committee, Earth Care Sudbury, the Good Food Box, and the Sudbury Community Garden Network, and how civic participation and inter-institutional collaboration have reoriented local development toward ecological stewardship, food security, and social equity.

Joshua Garcia, Mariel Mondragon-Becerra, Ivan Moya martinez, Connie Tsz Fai Wong, Zoe Caron, Katherine Kravitz, Elaine Owyang, Olukayode Jegede, Rebecca Ryals, Cristina Lazcano · Discover Sustainability · United States

A 2026 study conducted with Local Ecology and Agriculture Fremont (LEAF), a small urban farm in the San Francisco Bay Area, US, tests whether regenerative agriculture can support soil health and biodiversity in an urban landscape, comparing uncultivated soils, soils managed regeneratively for four years (Regen.4), and soils managed regeneratively for 10 years (Regen.10). Soil chemical properties such as pH, electrical conductivity, and lead concentration differed significantly between plots, likely reflecting each plot's management and land-use history. While total soil carbon did not differ between plots, Regen.4 had a higher proportion of labile carbon than the uncultivated plot along with a greater abundance of soil microorganisms and nematodes, and Regen.4 soils also showed improved physical properties — higher aggregate stability and lower compaction — compared with both the uncultivated plot and the Regen.10 plot.

Justine Lindemann, Natalia Alvial, Theodore R. Alter · Agriculture and Human Values · United States

Framed within studies of racial capitalism and neoliberal corporate food regimes, this article examines how residents of Pennsylvania's Monongahela (Mon) Valley experience and articulate food apartheid — a racialized system of food access — and how it intersects with deindustrialization, capital abandonment, and structural racism. Drawing on engagements across three Mon Valley municipalities, the findings reveal complex geographies of food apartheid intersecting with other markers of racial capitalism: inequitable transportation infrastructure, rising cost of living alongside declining quality of life, and ineffective political representation. Residents interpret these inequities as part of a broader racialized economic injustice favoring neighboring, predominantly white municipalities, compounded by distrust of local government perceived as perpetuating exclusionary policies rather than responding to community demands. In this context, participants envision community-driven solutions that extend beyond food system and urban agriculture initiatives.

Justina Walker-Mohamed, Stephanie Johnston, Silvia Sarapura, Charlotte Potter, Tristan Cook, Paul Benalcazer, Red Rock Indian Band, Netmizaaggamig Nishnaabeg, Biinjitiwaabik Zaagging Anishinaabek, Niigaaniin (Mamaweswen) · Rural Review Ontario Rural Planning Development and Policy · Canada

This poster presentation describes knowledge translation and transfer (KTT) practices in the Braiding Food Systems (BFS) project, a community-based agri-food research initiative with First Nations in Canada spanning community gardens, seed lodges and youth engagement. The approach centers relationships, mutual and reciprocal learning and sharing, and equal value for diverse forms of knowledge, co-developing place-based KTT strategies and materials, and is intended to open a conversation on community engagement and participation in KTT for Indigenous agri-food and rural research. No specific outcomes or measured results are reported.

Subin Babu Neupane, Pedro F S Toledo, Katerina Velasco-Graham, Felipe N. Soto‐Adames, Arash Kheirodin · Journal of Integrated Pest Management · United States

This is the first report documenting the invasive thrips species Thrips parvispinus, native to Southeast Asia, in Texas, USA. Samples collected from 12 locations across Texas -- including greenhouse facilities, large retail outlets and community gardens -- from plants showing foliage injury confirmed the species' presence in November 2025, and detections across multiple counties suggest it has been introduced to multiple locations and may be widely distributed in the state.

Jackson Borges de Carvalho, Murilo Couto Lacerda, Linia Dayana Lopes Machado, Rejaine Silva Guimarães · Contribuciones a las Ciencias Sociales · Brazil

A documentary literature study examined urban agriculture in Gurupi, Tocantins, Brazil, where 288 productive units exist despite the municipal master plan and local legislation not explicitly addressing the practice, focusing on the need for municipal regulation. Drawing on federal, state, and municipal legislation, academic studies, territorial diagnostics, and empirical survey data from Primo et al. (2014), the study found that urban agriculture holds socio-environmental, food, and community relevance but faces a lack of technical assistance, legal insecurity, and scarce institutional support.

E. Christian Wells, Sarah Combs · Practicing Anthropology · United States

A paper examines 'healthfields'—former brownfields, land whose contamination history impedes redevelopment and which in the US are disproportionately concentrated in underserved communities of color linked to poor health outcomes—redeveloped through participatory approaches to provide health benefits such as recreational parks, community gardens, and health care centers. Noting that healthfields are difficult to realize because local governments often see them as low-return investments offering little tax-base benefit relative to operation and maintenance costs, the paper describes the history and outcomes of a university-community partnership redevelopment project that catalyzed additional development including attainable housing, evaluating its public health contribution using an established land-reuse model for safely cleaning up and reusing contaminated brownfields.

Mya O. Price · · United States (Appalachia)

This chapter examines how community-supported agriculture (CSA) empowers Black farmers through innovations and community partnerships in Appalachia and nearby regions of the United States (2026). It traces CSA's roots to Booker T. Whatley's 1960s clientele membership clubs, explaining how shares, upfront payments and risk-sharing stabilize farm income while improving local access to fresh food. Case studies include Swanson Family Farm's buyer's club near Atlanta, Southside Community Farm's BIPOC-centered urban model in Asheville, and Cleav's Family Market's traditional Kentucky CSA. The chapter also addresses persistent barriers — limited resources, systemic discrimination and land access — and highlights the support networks and policy impacts shaping CSA success for Black-led food equity efforts.

Kate Holbrook · Digital Commons - RISD (Rhode Island School of Design) · United States

The American public library, described as a "palace for the people," was established as a free, democratic haven for the public's literary and educational needs, and has since expanded its services beyond book access to include tool rentals, warming centers, postal services, and more. Building on the public library's identity as a democratic commons, this study proposes a physical expansion of the Boston Public Library into Copley Square. Drawing on the library's autonomous architectural language, the proposal extends its social and educational services through the lens of food systems, allowing patrons to take part in the production, processing, and output of urban agriculture.

Candice M. Duncan, Fatemeh Ghezelsofla, Hlengilizwe Nyoni, Jazmin Escobar, Odette Mina · Toxics · United States

A study measuring per- and polyfluoroalkyl substances (PFAS) in irrigation water at two organic farms in Maryland, USA, with no known direct PFAS input, and assessing health risk via a Hazard Index (HI). At agricultural site 1 (AG1), the most abundant compounds were PFBS (37 ng/L), PFBA (24 ng/L) and PFHxA (22 ng/L); the HI showed compliance for branched PFHxS (0.39) but non-compliance for linear PFHxS (1.51). At agricultural site 2 (AG2), despite no known industrial or PFAS-related facilities nearby, HFPO-DA (GenX) was detected at 28 ng/L, and the HI exceeded the compliance threshold (HI = 2.83), with GenX accounting for most of the calculated risk. The findings show HI exceedances occurring at small farm sites with no identifiable contamination source.

Esteve Gaelle Giraud, Elora Bevacqua, Madeline Mercer, Nicholas Benard, Priya Nayak, Tawsha Trahan, Kathleen Merrigan · Journal of Agriculture Food Systems and Community Development · United States

This paper documents an early-stage Participatory Action Research (PAR) process to scale up urban agriculture in Tempe, Arizona, an arid, land-constrained city where four contiguous neighborhoods face high food insecurity and vulnerability. A transdisciplinary team of researchers, city staff and community-based organizations collaborated with residents to assess the state of urban agriculture, identify local priorities, and co-develop ten policy recommendations, through 86 food access surveys, mapping, practitioner interviews in Tempe and six other cities, and community workshops. Residents emphasized the need for urban agriculture spaces supporting food production, education, workforce development and community building, while limited funding, volunteer instability and poor communication of existing resources were identified as key barriers. Despite water scarcity and land pressures, the study argues that water-smart, strategically located urban agriculture can serve as resilience infrastructure addressing civic, environmental and social goals, and that participatory planning supported by trusted intermediaries can shape agendas before formal food policy structures exist, offering insights for other cities pursuing participatory food planning.

Lauren J Franks · FHSU Scholars Repository (Fort Hays State University) · United States (Kansas)

The Community Cultivation program, a grant proposal project focused on Hays, Kansas, in the United States, sets out a plan for how a community garden could improve access to healthy food in rural areas. Guided by the question of how community-based food initiatives can reduce nutrition-related disparities, the proposal responds to the HaysMed Community Health Needs Assessment, which identifies nutrition and fresh produce access as critical concerns for Ellis County. With an emphasis on food-insecure and low-income individuals, the planned garden aims to reduce health disparities tied to socioeconomic status and strengthen community connections by building gardening and cooking skills. It proposes a multi-phase implementation plan involving collaboration with sustainable landscapers, development of gardening infrastructure, and educational classes, with visitor logs and participant surveys planned to track access to fresh produce, garden usage and skills applied; data collection and analysis are planned to continue throughout implementation.

Thomas Anthony Pacheco · Zenodo (CERN European Organization for Nuclear Research) · United States

This is a non-peer-reviewed, pedagogical guide, not an empirical study, that uses food insecurity and food deserts in Los Angeles County as a case study to translate sociological theories -- including Resource Mobilization Theory, Framing Theory, Legal Consciousness Theory, Collective Action Frames, and Political Process Theory -- into organizing strategies for activists and students. It sets out practical steps for securing funding, recruiting volunteers, framing injustice, engaging policymakers, and building interventions such as community gardens.

Ms. E. Indumathi, R. Ragavi, M. Sandhiya · Zenodo (CERN European Organization for Nuclear Research) · United States

This article surveys initiatives that countries have developed over decades to address the impact of food waste on hunger, including food donation programs and partnerships between large grocery chains and local food banks. In the United States, such efforts are described as distributing food to roughly 37 million hungry Americans each year. Innovative approaches cited include establishing community gardens, expanding access to local farmers' markets, promoting purchase of local produce, and educating communities about the negative impacts of food waste. It highlights the Food Bank of Central and Eastern North Carolina (FBCE), which provides food assistance and training through more than 800 partner agencies (food pantries, soup kitchens, shelters), and Waste No Food, a platform connecting food donors (restaurants, caterers, grocery stores) with food rescue organizations while letting donors track their donations.

Marcelo Budal Cabral, Alysson Maia Fontenele · Revista JurisFIB · Brazil

This legal article examines the significance of urban agriculture for greening cities and for greenhouse gas mitigation and climate adaptation in Brazil. Using bibliographic and documentary research with a hermeneutic approach, it analyzes precedents including the Inter-American Court of Human Rights' Advisory Opinion 32/2025 (climate emergency) and the Brazilian Federal Supreme Court's Arguição de Descumprimento de Preceito Fundamental 708 (Climate Fund case), alongside the national Urban and Periurban Agriculture Policy and other normative texts. It concludes that ecological and climate protection duties, reinforced by these court precedents, require implementing and fostering urban agriculture in order to realize the right to a healthy climate.

Iasmin Emanueli Becker, Luciana Nunes de Oliveira, Jordana Marques Kneipp, Augusto Costa Bernardy, Edgar Cesar Rodrigues Maia, Juarez Felisberto · Revista Tópicos. · Brazil

As urban flooding, heat islands and water scarcity become more frequent in socioeconomically vulnerable peripheral areas, this qualitative case study analyzed how an agroecological community garden contributes to urban environmental resilience and efficient use of natural resources. Focusing on the Horta Comunitária Urbana Agroecológica Renova Vidas garden in Brazil, the study combined document analysis, non-participant observation and interviews, analyzed through content analysis. The garden was found to promote recovery of degraded land, conservation of natural resources and efficient water use, illustrating how local practices can contribute to urban resilience.

G. Bastian, Sarah Lane, Haley McMahon, Olivia Husmann, Evangeline Schumacher · Journal of Agriculture Food Systems and Community Development · United States

One in eight South Dakota residents faces food insecurity, which has been linked to higher prevalence of chronic diseases such as heart disease and diabetes. Against this backdrop, this study conducted a preliminary process and impact evaluation of Dakota Food Rx, a pilot community-supported agriculture (CSA) produce prescription (PRx) program in the Northern Black Hills of South Dakota. Healthcare providers (Prescribers) referred low-income and/or food-insecure adults with diet-related chronic disease (Patients) to receive weekly produce boxes from a local specialty producer (Grower); evaluation measures included patient pre-post surveys and key informant interviews with Prescribers, Growers and Patients. From June to November 2024, 30 patients participated, receiving 434 produce boxes (mean 14.5 per patient) valued at over $14,000. Ten pre-surveys and eight post-surveys were completed (seven pre-only, five post-only, three both), along with nine interviews. Overall program satisfaction was high, and patients responding at post-test reported higher food security and sense of community than at pre-test. Thematic analysis of the interviews indicated patients improved their diet, food access and overall health, and that relationships were built among program participants; however, Prescribers, Growers and Patients all reported having to adapt to the program, with future considerations including increased communication, improved workflow, and additional resources.

Mary T Nguyen, Carleen Rauh, Shelby Gresch, Charlotte Correiro, Heidi Elmendorf, Adriane Fugh-Berman, Gina Wimp, Alexandra L. DeCandia · ODU Digital Commons (Old Dominion University) · United States

Plant, animal, bacterial and fungal diversity were examined across three distinct urban habitats — a turf lawn, a forb garden and a farming space — using bacterial 16S rRNA and fungal ITS2 sequencing, soil nutrient analyses, and vegetation and wildlife surveys. Bacterial community abundance was relatively even across garden types, but site-specific management style significantly shaped which fungal taxa dominated: Leotiomycetes in the farming space, Sordariomycetes in the forb garden, and Tremellomycetes in the turf lawn, indicating that distinct urban agricultural practices strongly shape fungal communities. Gardens with greater plant diversity also supported higher wildlife and fungal richness.

Ana Paula Branco do Nascimento, Rafael Silva de Araújo, Thais Reis Rocha, Ramoel Serafini · Revista Nacional de Gerenciamento de Cidades · Brazil

This applied, exploratory-experimental study designed and implemented a rainwater harvesting and irrigation automation system for food plant beds at a community garden ("Horta das Flores") under an impermeable roof in the eastern region of São Paulo, Brazil, aiming to reduce dependence on manual irrigation by volunteers. Developed through literature and technical review, field measurements, hydraulic efficiency tests, and component adjustments, the system was found to be technically and operationally feasible, ensuring regular water supply while reducing manual effort, and field evaluation enabled further hydraulic improvements and automation adjustments.

Ruyu Liu, Daniel Harwood, Ora Kemp, Alyson Rosenthal, Roger Figueroa, PhD, MPH, MSc · Public Health Nutrition · United States (New York City)

A quasi-experimental pilot study with 3-month follow-up assessed a food pantry-led, subsidized community-supported agriculture (CSA) program called Farm Share in New York City. Farm Share provided biweekly bags of about 25 pounds of fresh produce at $5 per bag; control participants were recruited from a comparable food pantry without CSA (Farm Share n=54, control n=69), predominantly Hispanic/Latino, Black or African American, foreign-born, female and with a high school education or lower. Retention at follow-up was 65.0% (Farm Share n=33, control n=47). Skin carotenoids increased by 12 points in the Farm Share group relative to control, adjusted for smoking status, age, sex and birthplace (P=0.005), but total Healthy Eating Index (HEI) declined by 6.3 points (P=0.031) and the saturated fats HEI component declined by 1.1 point (P=0.027) in the Farm Share group. Improvements in fruit and vegetable intake (P=0.25) and food security (P=0.16) were not statistically significant.

US Environmental Protection Agency (EPA) · US Environmental Protection Agency (EPA) · United States

EPA's overview page for the Renewable Fuel Standard (RFS) program, created under the 2005 Energy Policy Act and expanded by the 2007 Energy Independence and Security Act, aimed at reducing greenhouse gas emissions, expanding the domestic biofuels sector, and reducing reliance on imported petroleum.

California Department of Resources Recycling and Recovery (CalRecycle) · CalRecycle · United States

CalRecycle's page on permanent regulations under SB 54, California's producer responsibility law for single-use plastic packaging and food service ware, requiring 100% recyclability/compostability, a 65% recycling rate, and a 25% reduction versus 2023 by 2032, with producers funding $500 million per year starting in 2027.

George Gigounas, Kristy Balsanek, Meaghan Colligan Hembree, Felicia Isaac, Jesse Medlong · DLA Piper · United States

A DLA Piper analysis of California's SB 54 extended producer responsibility (EPR) program plan, projecting $9.3–$17.2 billion in costs over five years (2027–2031) with annual producer billing starting in 2027. Plastic reduction targets are 10% (2027), 20% (2030), and 25% (2032), with recycling-rate targets of 30% (2028), 40% (2030), and 65% (2032).