Research & reports

Jordan Ashby, Clarissa Libertelli · Institute for Local Self-Reliance (ILSR) · United States

Just after NYC announced expansion of mandatory residential organics collection by 2024, the mayor's office eliminated funding for the city's community composting program. The article identifies three failures reflecting national trends: government 'composting' programs that actually rely on anaerobic digestion, centralized processing that concentrates environmental burdens in vulnerable neighborhoods, and mandatory government programs undercutting community composters' viability.

Cole Rosengren · Waste Dive · United States

California's Little Hoover Commission recommended pausing SB 1383, the state's organics recycling law, citing concern the state will miss its 2025 targets, but CalRecycle, industry and environmental advocates strongly opposed the pause, noting roughly $500 million already invested. 445 of 614 jurisdictions now have residential food-waste collection programs, and waste costs rose 20% for residential and 30% for commercial customers.

Jena Brooker · Planet Detroit (via BridgeDetroit) · United States

Hantz Woodlands, a large-scale tree farm on Detroit's east side, acquired roughly 2,600 parcels and still holds about 2,000. It bought an initial 1,550 parcels for $540,000 and later resold about 10% of its holdings for $9.5 million — nearly nine times its original cost — while paying only $7,035 of the $33,110 it owes in blight-violation fines. Critics note the Detroit Land Bank Authority never reclaimed a single Hantz property despite missed deadlines, even as it repossessed land from ordinary residents who fell behind.

Joshua Newell, Alec Foster, Mariel Borgman, Sara Meerow · Cities · United States (Detroit)

A study in Detroit's Lower Eastside (~15 sq. miles) examined the spatial extent, characteristics, and residents' perceptions of urban gardens using spatial analysis and interviews. Gardens covered less than 1% of vacant land and were often ephemeral. Primary obstacles to scaling up urban agriculture in Detroit include uncertainty over land tenure, environmental pollutants, potential ecosystem disservices, and a lack of government support and capital investment.

Janet Music, Lisa Mullins, Sylvain Charlebois, Charlotte Large, Kydra Mayhew · Humanities and Social Sciences Communications · Canada

This study compared 19 municipal urban home food gardening programs in Canada in 2020, which provided free gardening supplies and instructions. It found a complicated relationship between municipalities, gardening programs, and food security, and determined that gardening somewhat alleviated social and emotional challenges from the COVID-19 pandemic. However, municipalities are limited in their policy capacities to adequately address food insecurity in Canada.

Catherine Campbell, Jorge Ruiz‐Menjivar, Alia DeLong · HortTechnology · United States (Florida)

This research characterized commercial urban agriculture (CUA) operations in Florida, United States, and explored urban farmers' perceptions of needs, barriers, and opportunities for CUA development. A cluster analysis identified three distinct groups of urban farmers with differing perceptions of barriers, opportunities, and informational needs. The study notes that the U.S. Department of Agriculture Census of Agriculture does not report data on CUA operations, limiting knowledge about their status, including barriers to business operations and profitability.

Julie Cornfield, Harmonii Odinga, Jaleh Kermani, Katherine P. Theall, M. Pia Chaparro · American Journal of Health Promotion · United States (New Orleans)

An environmental assessment of 10 community gardens and interviews with 20 community members and administrators in New Orleans, Louisiana, explored factors affecting garden use. Gardens scored high in design and cleanliness but low in accessibility and information availability. While community members perceived gardens could increase fresh food access, administrators believed gardens could not produce enough food for community-wide impact, emphasizing social benefits instead.

Tomasz B. Falkowski, Bethany Jorgensen, Donald A. Rakow, Ashmita Das, Stewart A.W. Diemont, Theresa Selfa, Austin B. Arrington · Frontiers in Sustainable Food Systems · United States

A study in four New York cities analyzed the benefits and challenges of community gardens during the COVID-19 pandemic through surveys and semi-structured interviews with community gardeners. Gardeners experienced benefits such as connection, mental and physical well-being, and a safe refuge, but the biggest challenge was limited socializing due to personal behavioral changes and garden rules. This research suggests that while community gardens can be resilient sites of reprieve during crises, the pandemic also exposed their vulnerabilities.

Rosangela Hespanhol, Antônio Nivaldo Hespanhol · Revista de Tecnologia & Gestão Sustentável · Brazil

A case study of urban agriculture in Álvares Machado, Brazil, identified challenges including difficulties in accessing land and water for irrigation, the absence of official technical assistance services, and a lack of public policies at national, state, and municipal levels. Despite these difficulties, urban farmers are responsible for a significant portion of leafy greens and legumes production, establishing direct relationships between producers and consumers through markets and street stalls.

K. Michelle Glowa · Journal of Agriculture Food Systems and Community Development · United States (California)

This paper reflects on the engagement between Mexican and Salvadorian farmers at the Beach Flats Garden in Santa Cruz, California, and local educational institutions. It discusses the garden's role in critical food system education, highlighting its function as a space of resistance to gentrification in a competitive land market. The garden provides examples of noncapitalist exchanges and decolonial foodways, emphasizing traditional agroecological knowledge.

M. Sitaker, S. Ennett, C.E. Walsh, R. Seguin-Fowler, J. Kolodinsky, A. Ammerman, K. Hanson, S.B. Pitts Jilcott · UNC Libraries · United States

This exploratory study investigated associations between snack foods, sugar-sweetened beverages (SSB) consumption, and overweight and obesity in children from low-income households. Data from 305 households participating in a multi-state cost-offset (CO-CSA) intervention in 2016 and 2017 were analyzed. No associations were found between snack or SSB consumption and child overweight.

Emily A. Holmes, Mary F. Campbell, Ryan Betz · Journal of Agriculture Food Systems and Community Development · United States

This study used the concept of food sovereignty to assess the level of local control over food production, distribution, and consumption in the Mississippi Delta. Research involved site visits, participant observation, focus groups, and surveys of communities affiliated with the Delta EATS public school garden program. Findings demonstrated low levels of food sovereignty, though high levels of agency and ingenuity in accessing desired foods were observed.

Luciane Maria Vieira, Leonardo Antunes Pessoa, Vinícius Estevan Carvalho Pereira, Karen Silvério Góis, Edivando Vítor do Couto · International Journal of River Basin Management · Brazil

Water and sediment samples from four sites in a countryside urban-farming watershed landscape in Southern Brazil were analyzed for pollution assessment. All water samples were contaminated with faecal and total coliforms, indicating issues with treatment effectiveness. While pesticide concentrations in water were not significant, sediment copper concentrations were eight times higher than the Threshold Effect Level (TEL), with chromium and copper exceeding TEL at all sites. Sources for zinc, copper, nickel, cadmium, and chromium included plantations, forests, and domestic sewage discharges.

Ana Clara Aparecida Alves de Souza, Fernando Dias Lopes · Cadernos EBAPE BR · Brazil (Porto Alegre)

This article analyzes an urban collective garden, Horta da Formiga, in Porto Alegre, Brazil, through a two-year participatory investigation using Pierre Bourdieu’s framework. The study found that the more protagonists of Horta da Formiga align with capitals considered legitimate by the state, the more they can reconcile contradictions in this field. However, despite individual agency, participants face structured conditions that do not allow for more organic and diverse forms of contradiction reconciliation.

Pablo Torres Lima, Kristen Conway-Gómez, Karla Almanza-Rodríguez · Frontiers in Sustainable Cities · Mexico (Mexico City)

This study examined local community involvement in governance processes in Milpa Alta, a peri-urban agricultural area of Mexico City, using surveys, interviews, and participatory workshops. It found that Milpa Alta lacks integral adaptive capacity to address urban pressures, environmental deterioration, and agricultural dynamics. Limited participation, low local organizational levels, and distrust of government institutions hinder effective governance, indicating that a "local is not enough" approach is insufficient for adaptive governance in this peri-urban context.

Qazi Shafayetul Islam, Nasima Akter · European Journal of Nutrition & Food Safety · Canada (Toronto)

This qualitative study, involving nine community organization representatives and 15 volunteers in Toronto's priority neighborhoods, identified significant barriers to providing and receiving free food support during COVID-19. Community members faced a lack of information, language barriers, social stigma, and fear of COVID-19. Organizations struggled with insufficient information on needs, limited transportation, storage space, committed volunteers, and funding, highlighting systemic and financial challenges in effective food support programs.

Wanda Martin, Lindsey Wagner, Kerry Marshall · Human Geography · Canada

This qualitative study investigated the controversy surrounding urban hen bylaws in Canadian cities, based on semi-structured interviews with 15 urban residents. The research identified three main areas of struggle: the need for education on urban agriculture, differing values for city life, and tensions between individual rights and the collective good. The findings expose challenges in urban hen legislation.

Valéria Borges Yonegura, Jennifer Domeneghini, Júlio Celso Borello Vargas, André Luiz Lopes da Silveira · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Brazil (Curitiba)

This paper focuses on mobility issues in the southern region of Curitiba, Brazil. It points out that the benefits of urban agriculture, particularly the ecological advantages of short food circuits, are hindered by the isolation of its growers. The lack of accessibility in peripheral areas, due to distance or insufficient infrastructure investment, suggests a loss of opportunities in utilizing the transport system.

Larissa Siqueira Chaves, Giovanna Simokado Magalhães, Soraya Nór · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Brazil

This article reflected on the potential of feminism in urban development as a practice of counter-hegemonic architectures. Through a cartography of central Florianópolis, it was shown that only ten streets in the city center were named after women, revealing that patriarchal patterns are fixed in the territory. Women in urban agriculture are presented as individual and collective body-territories that construct a counter-hegemonic praxis in urban spaces and social movements, politically building alternatives that foster care, reproduction of life, reconnection with nature, protection of popular traditions, as well as gender issues and the right to the city.

Daniel Sax, Lorien Nesbitt, Shannon Hagerman · Environment and Planning E Nature and Space · Canada (Vancouver)

A case study of an urban farm in Vancouver, Canada, facing displacement due to redevelopment, revealed that urban residents engaged in urban greening can be both implicated in and impacted by green gentrification processes. The study highlighted the power dynamics farm members navigate to preserve land access and found that the farm's identity was co-opted by development agents as a branding tool. This research contributes to understanding the limitations of development processes in accounting for green gentrification risks.

Emmanuelle Melis, Emma Louise Armitage, Yuxin Ma, Amelia Weiss, Brian E. Robinson · McGill Science Undergraduate Research Journal · United States (Chicago)

This study investigated the location of urban commercial farms in Chicago, Illinois, and whether there is a significant disparity between the social demographics of production and sale points. All production and distribution points for commercial urban farming companies were geocoded and analyzed against socioeconomic indicator data from the 2016 US census, including median annual household income, mean home value, and percent racialized minority population. Findings revealed statistically significant differences in socioeconomic indicators between census tracts of farm and sale point locations, showing a skewness of farm locations towards lower socioeconomic status areas and sale point locations towards higher socioeconomic status areas. This suggests that while farms are more likely to be located in marginalized neighborhoods in Chicago, most produce grown by these farms is sold in more privileged areas.

Elvis Albert Robe Wandscheer, Rosa Maria Vieira Medeiros · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Brazil

This study investigated the interrelations between urban agriculture and local institutions in Belém-PA and Porto Alegre-RS, Brazil. In both municipalities, actions were observed that were implemented temporarily but lacked continuity. Porto Alegre showed more commercial channels derived from previously established institutional relations, while Belém presented several elements without alternative solutions for problems related to high temperatures and navigation distances.

Denise Arroyo-Lambaer, Luís Zambrano, Miguel Rivas, Diana Laura Vázquez-Mendoza, Fernanda Figueroa, Martha B. Puente-Uribe, Ana Cecilia Espinosa‐García, Marco A. Tapia-Palacios, Marisa Mazari-Hiríart, Daniel A. Revollo-Fernández, Alaíde Jiménez-Serna, Marco Covarrubias, Carlos Sumano · Frontiers in Sustainable Cities · Mexico (Mexico City)

This study investigated the needs and commercialization challenges of chinampa producers in Xochimilco, Mexico City, to assess the potential of a green label. The analysis, based on a literature review and producers' mental model analysis, found that unresolved issues like commercialization problems, consumers' unwillingness to pay fair prices, soil degradation, and poor irrigation water quality persist. These issues make it difficult for most producers to bear certification costs, indicating that implementing a green label would likely fail to deliver its intended benefits.

Arnim Wiek, Stefanie Albrecht · Urban Agriculture & Regional Food Systems · United States (Phoenix)

A multiyear transdisciplinary project in Phoenix, United States, analyzed the development of a sustainable urban food forest enterprise. The project built a coalition of supporters, secured a suitable site, codeveloped a vision and action plan, and fundraised a major start-up donation. However, research findings indicate that despite achieving success factors to some extent, an underdeveloped sustainable entrepreneurial ecosystem jeopardizes long-term success and multiplication efforts.

Catherine Campbell, Alia DeLong, John Diaz · Renewable Agriculture and Food Systems · United States (Florida)

This qualitative needs assessment, based on semi-structured interviews with 29 commercial urban agriculture (CUA) producers in Florida, characterized CUA operations. The study identified that CUA operations face common small farm barriers, alongside additional challenges from local government regulations and tensions with non-traditional agricultural land use. Despite these difficulties, CUA operators perceive their urban location as a key benefit and see opportunities for future business and market expansion.