Research & reports

Graff G. D., de Grazia C. A. W., Rada N. E. · American Journal of Agricultural Economics (early view) · United States

Compiles a unique dataset of 6,024 new agricultural entrants founded 1987-2019 detailing their financing lifecycle, empirically examining the role venture-financed startups and venture capital play in driving innovation across US agriculture and agtech.

· Agronomy for Sustainable Development · Canada

A life-cycle assessment of controlled-environment urban lettuce found climate-change impacts ranging from 0.8 to 25 times those of conventional lettuce because of high energy demand; in carbon-intensive grids such as Alberta, per-kilogram emissions exceeded conventional agriculture.

Jaqueline Lopes Pereira, Bárbara Lellis de Sá Frizo, Denise Miguel Teixeira Roberto, Gabriela Rigote, Clara Ribeiro Camargo, Fabrício Muriana, Gabriela Mariano Mendonça, Maurício Alcântara, Roberta Moraes Curan, Dirce Maria Lobo Marchioni, Aline Martins de Carvalho · Revista de Saúde Pública · Brazil (Belém)

This study analyzed the sustainability of the food system in the Belém Metropolitan Region, Brazil, focusing on public institutional purchasing policies in 2022. Municipalities allocated 31 million reais to the National School Feeding Program, with 43.5% from family farming, exceeding the legal target. The Food Acquisition Program saw the Abril Vermelho settlement sell 28 tons of food, prioritizing permanent crops and agro-ecological practices.

Mya O. Price · · United States

This chapter examines how local food systems can empower Black farmers and growers through direct-to-consumer and community-based markets, analyzing tools like farmers’ markets and urban agriculture. While case examples show Black-led initiatives, persistent barriers include limited capital, discriminatory pricing and lending, bureaucratic gaps, and uneven USDA support despite civil rights settlements. The study details these challenges.

Jocelyn M. Leitzinger, Robert David · · United States (Detroit)

A case study of Detroit's urban agriculture market indicates that "business-as-usual" development strategies, which prioritize large-scale investment projects, often fail to achieve their economic development potential. These strategies are noted to potentially exacerbate social or environmental issues, particularly within "moral markets" led by Black activists. The paper explores the mechanisms of such failures and offers recommendations for policymakers and entrepreneurs.

Héctor Bernal-Mendoza, Daniel Jiménez-García, Natyeli Matus Angulo, Miguel Ángel Escalona Aguilar · Agroecología · Mexico (Puebla)

This study evaluated the sustainability of 18 urban gardens in Puebla, Mexico, from 2020 to 2021. The MESMI methodology was applied using 14 indicators across economic, environmental, and social dimensions. Two alternative systems were identified: transitional to conventional and transitional to agroecological, with the latter showing the highest values in 7 indicators and thus concluded to be the most sustainable.

Marwen Elkamel, Luis Rabelo · Sustainability · United States (South Florida)

This paper presents a mathematical programming model to optimize the design and sustainability performance of the urban food–energy–water (FEW) nexus. The model incorporates a micro supply chain and addresses the supply-demand balance within existing and future FEW systems using cost and carbon footprint indicators. It is applied to an urban agriculture network in South Florida, integrating renewable energy technologies, combined heat and power units, reclaimed wastewater and stormwater, and electric vehicles. The optimization process identified effective infrastructure investment, resource allocation, and technology configurations to support circular economy and sustainability.

Sasha Pesci, Ryan E. Galt · Agriculture and Human Values · United States (California)

This paper, based on 28 semi-structured interviews with direct market farmers in California, explores their experiences with market digitalization. It finds that while some farmers perceive online tools as eroding social and environmental connections, others view them as supportive of these connections, highlighting tensions in market digitalization for Alternative Food Networks.

Nazareno José de Campos · Revista Campo-Território · Brazil (Florianópolis)

This article examined the strong urbanization process in Florianópolis and neighboring municipalities in Brazil. Using various bibliographies, information, empirical analysis, cartographic instruments, and practical activities such as visits to production areas, it showed that despite the transformation of rural areas into urban spaces, rural elements persist within urban areas, supplying regional and national markets for agricultural and livestock products. Despite extensive urbanization, the rural presence remains within the urban fabric, characterizing what is known as urban and peri-urban agriculture.

R P Mula, Molly Doane, Gabrielle Powell, Myer G. Mula · Asian Journal of Agricultural Extension Economics & Sociology · United States (Chicago)

This study visited, documented, and described 15 community gardens in Chicago, Illinois, and interviewed their leaders. It found the utmost importance of saving traditional crop seeds (heirlooms) for diversity, climate change mitigation, and health, as these are grown organically. Insights include reorienting mindsets, crafting garden requirement manuals, consolidating the value chain, and educating health workers on promoting community gardening.

Alfredo Pérez Guerrero, María Josefina Jiménez-Moreno, Florentino López-Sánchez · Revista Chapingo Serie Agricultura Tropical · Mexico

This research analyzed the multifunctionality of urban and peri-urban agriculture (UPA) in Tocuila, Texcoco, Mexico, by applying the Multifunctionality Index of Agricultural Production Systems (IMSPA) to 50 agricultural systems through surveys. Indicators were weighted using the Delphi technique with experts and ejidatarios. Results showed that 50% of systems had medium-high multifunctionality (level IV), 48% had medium multifunctionality (level III), and only 2% had high multifunctionality (level V). The majority of agricultural systems exhibited an intermediate level of multifunctionality, with relevant but limited capacities to generate simultaneous benefits across productive, environmental, and social dimensions.

João Paulo Moreira dos Santos, Luis Carlos Rodrigues da Mata, Maria Clara da Cunha Carvalho, Gabrielly Rodrigues de Araújo, Robério Soares dos Santos, Maria Eduarda Santiago de Araujo, Iraneide Da Cunha Santiago, Edinalva Pereira Campos, José Gustavo Santiago Santos · Journal of Interdisciplinary Debates · Brazil (José de Freitas)

This qualitative case study in José de Freitas, Brazil, analyzed mathematical rationalities in urban community gardens, using participant observation, interviews, and field notes. It found that farmers use ethnomathematical knowledge for spatial organization, soil management, and commercialization. However, these practices showed limitations when confronted with institutional demands for standardization, highlighting a need for critical articulation with formal mathematics.

Felipe Jardim, Eduardo Alberto Manjarrés Trelles, Caren Freitas de Lima · Revista de Direito da Cidade · Brazil

This study investigated the role of vertical urban agriculture in promoting the right to food in Brazil, considering the food system crisis as a problem affecting the right to the city. An inductive method with a qualitative approach, including literature review, documental research, and case studies from Japan, Singapore, Germany, the USA, and Brazil, revealed that vertical urban agriculture has "cons" when appropriated as a profitable system with restricted access products, and "pros" such as occupying vacant urban land and being produced by or supporting poor families.

Jennifer Morrison Daspin, Mariela Jiménez-Rivero, Bonnie Martin, Michele Hockett Cooper, Katie Nikah, Lyndsey Waugh, J. N. Davis · Journal of Nutrition Education and Behavior · United States

A cross-sectional survey of 364 US school administrators, teachers, and garden coordinators identified attributes predicting thriving school gardens. Logistic regression analyses showed that each additional subject and grade taught increased the odds to thrive by 21-22%, an annual budget over $1,000 by 42 times, and higher administrative support by 42 times. Administrative support, budget, volunteer support, and garden workdays are integral to garden sustainability.

Natalie Meyer, Simona Trandafir · Journal of Environmental Economics and Policy · United States (Rhode Island)

A choice-based survey of over 600 US residents from Rhode Island examined preferences and perceived value for green rooftop (GR) space allocations for agriculture, solar energy, and recreation. Latent class modeling revealed that Class 1, representing 20% of respondents, was generally unsupportive of GR installation and expressed disutility towards GR space allocation for solar energy. Both classes uniformly favored allocating GR space for agriculture production and showed a positive willingness to pay for this feature.

Evelyn Seilhe Guerreiro, Márcio Luis Valença Araújo, Adilson Oliveira de Almirante, Eduardo Oliveira Teles, Aloísio Santos Nascimento Filho, Hugo Saba Pereira Cardoso · Journal of Bioengineering, Technologies and Health · Brazil

This study analyzed the integration of Controlled Environment Agriculture (CEA), community gardens, and public health policies, using case studies from Brazilian cities such as Salvador, Recife, São Paulo, and Rio de Janeiro. CEA contributes to enhanced productivity in small spaces with reduced water and input consumption, while community gardens strengthen social cohesion, mental health, and local food supply. However, challenges remain regarding high implementation costs, regulatory gaps, and lack of institutional support.

Maria de Nazareth Oliveira Maciel, Daniel Pereira Pinheiro, Luann Yago Oliveira Maciel · Veredas do Direito Direito Ambiental e Desenvolvimento Sustentável · Brazil

This study analyzed the contributions and challenges of urban agriculture for food security in three municipalities of the Belém Metropolitan Region, Brazil. Using multivariate factor analysis with 120 producers from November 2023 to February 2024, findings indicated urban agriculture ensures food security and reduces food scarcity concerns. However, the activity lacks public policy incentives for seed acquisition and land titling, hindering its advancement.

Elisa Carvalho Lauer, Jaqueline Lima Liskoski, Kelliane Da Consolação Fuscaldi · Revista Campo-Território · Brazil

This study mapped and analyzed urban and peri-urban agriculture (AUP) legislation across municipal, state, and federal levels in Brazil, identifying 217 municipal laws in 113 municipalities, 33 state laws, and federal frameworks. The research systematized normative content into twelve thematic categories, showing AUP's integration into food security, urban sustainability, and income generation agendas. While a qualitatively consistent normative basis exists, gaps persist regarding conceptual definition, area guarantees, water access, financing, and credit. It is necessary to expand and harmonize regulations across all three spheres to consolidate AUP as a structural strategy for sustainable cities.

Hoyoon Jung · The International Journal of Social Sustainability in Economic Social and Cultural Context · Brazil (Belo Horizonte)

This study analyzes Belo Horizonte, Brazil's right-to-food model, which has reduced hunger and promoted social equity through integrated food policies like subsidized food programs and urban agriculture. Despite its successes, the model faces challenges in policy sustainability, financial constraints, and political continuity, and the study notes limitations including reliance on secondary data.

Ada Folques, Mario R. Paredes, Vanessa Apaolaza, Patrick Hartmann · Business Strategy and the Environment · United States

This study examined demand-side drivers of consumers' willingness to pay for food forest produce in the United States, using a quota-based online panel sample of 845 adults. It focused on nature connectedness, perceived health risks from monoculture farming, climate change concern, and need for uniqueness. All four factors positively influenced willingness to pay, with nature connectedness being the most influential. The impact of climate change concern on willingness to pay was stronger among consumers with low uniqueness-seeking and weaker among those with high uniqueness-seeking.

Jake Simkins, Elijah Burt, Finnbarr Kelly · DigitalCommons - CalPoly (California State Polytechnic University) · United States (California)

California Polytechnic State University, San Luis Obispo Construction Management students undertook the City Farm SLO Sheep Shed Foundation Slab project to improve a livestock shelter's structural integrity. The project involved removing an existing shed, preparing subgrade in muddy winter conditions, and constructing a reinforced 5-inch, 4500 PSI concrete slab with drainage. This hands-on endeavor demonstrated technical competency in construction and site logistics, with lessons learned including equipment coordination and adapting to site constraints.

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).

Montgomery Planning (Maryland-National Capital Park and Planning Commission) · Montgomery Planning · United States

Montgomery Planning's overview of the Agricultural Reserve, created in 1980 by Montgomery County Council action and covering 93,000 acres — nearly a third of the county's land. The Reserve combines dedicated agricultural zoning (limiting residential density to one unit per 25 acres in the AR zone), a transfer of development rights (TDR) program, and a Building Lot Termination (BLT) easement program to prevent farmland fragmentation, sustaining more than 500 farms.