Research & reports

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.

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.

Amy Lawton, Nicky Morrison · Land Use Policy · Australia (Greater Western Sydney)

This study examines the drivers of peri-urban agricultural land loss in Greater Western Sydney, Australia, with a focus on the role of government agencies. It found that competing housing priorities and private market interests continue to take precedence over protecting agricultural land. The research indicates that this trend will persist unless the current pro-urbanization narrative and associated political priorities are altered.

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.

Betty Mntambo · Huria Journal of the Open University of Tanzania · Tanzania (Morogoro Municipality)

This study examined land tenure security in urban agriculture among 69 male and female vegetable farmers in Morogoro Municipality, Tanzania, using snowball sampling and a cross-sectional design. Findings revealed that farmers access land informally by renting from legal landowners, with social relationships determining tenure security. Land tenure insecurity negatively affects vegetable cultivation and generates uncertainty and animosity between farmers and landlords.

Ayobami Abayomi Popoola, Bolanle Wahab, Hangwelani Hope Magidimisha, Lovemore Chipungu · CSID Journal of Infrastructure Development · Nigeria (Ibadan)

This mixed-methods study in Ibadan, Nigeria, surveyed 236 urban farmers across five local government areas to determine patterns of integrating urban farming into city infrastructure development. Findings indicated that old age limited farmers' travel distance and farm produce theft was detected, highlighting challenges in current urban farming practices and infrastructure.

Jelena Živanović Miljković, Vesna Popović, Aleksandra Gajić · Land · Serbia (Novi Sad)

A study conducted in Futog, Novi Sad, Serbia, investigated land take (LT) processes and challenges for urban agriculture, focusing on the role and implications of land use planning. Quantifying LT for 2000–2018 using CORINE Land Cover and Urban Atlas datasets revealed that a significant portion of agricultural land in Futog, registered as a Geographical Indication (GI) for Futog cabbage, was planned for conversion into construction land. The study concluded that current land use planning in Serbia is inadequate to ensure the protection of either urban agriculture or GIs.

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.

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.

Elias Danyi Kuusaana, Isaac Ayurienga, Joyce A. Eledi Kuusaana, Joseph Kwaku Kidido, Ibrahim Abu Abdulai · Frontiers in Sustainable Food Systems · Ghana (Bolgatanga)

A study in Bolgatanga Township, Ghana, used field surveys, key informant interviews, and GIS mapping to examine urban agricultural practices. It found that agricultural lands significantly decreased in size and contiguity since 1996 due to urban sprawl, forcing farmers to use segregated plots and undeveloped residential areas which are easily lost to development. The study concluded that urbanization exacerbates food production challenges without policies to protect agricultural lands.

Norma Wong, Marte C. W. Solheim · Edward Elgar Publishing eBooks · Norway

This case study details Tugushan Alp's entrepreneurial journey in Norway, where he pioneered hydroponic lettuce production in a bomb shelter. Alp faced multiple hurdles, including battling regulatory bodies for a legal premise. Despite these challenges, he achieved success and recognition for his innovative urban farming method.

Umar Usman Jimoh, Kolade Victor Otokiti · South African Journal of Geomatics · Nigeria

This study in Ibadan, Nigeria, examined the effect of poorly controlled physical development on urban food production using a longitudinal survey and geographical/remote sensing methods. It revealed that Ibadan's urban area expanded significantly from 70.3584 ha in 1986 to 411.8877 ha in 2019, leading to the loss of agricultural land, depletion of water bodies, and agricultural land conversion. This expansion negatively impacted urban food production.

Raktima Ghosh · · India (Kolkata)

This study examined the roles and emergent risks of urban and peri-urban agriculture (UPA) in the Kolkata Metropolitan Area, India, using a mixed-method approach combining empirical findings and geospatial techniques. Field observations and land use land cover (LULC) mapping validated land conversion patterns and the spatial shrinkage of UPA in the Kolkata metropolis. The study revealed current socioecological changes and governance patterns in the context of UPA, indicating that UPA faces multiple challenges arising from land-use transformations, privatization of lands, and changing social equations in the city.

Andrew Millie · Crime Media Culture An International Journal · United Kingdom

This article considered guerrilla gardening, which involves taking on other people’s land without permission. A qualitative study of guerrilla gardeners from the North West of England found that guerrilla gardening is a normalised form of law-breaking. Despite not necessarily being to everyone’s taste and gardeners having an autocratic view of property, it is broadly accepted and welcomed, even by those who enforce the law.

Can Wu, Xiaoma Li, Yuqing Tian, Ziniu Deng, Xiaoying Yu, Shenglan Wu, Di Shu, Yulin Peng, Feipeng Sheng, Dexin Gan · Agronomy · China (Changsha)

This study investigated the impact of perceived ecosystem services (ES) and disservices (EDS) on behavioral intention towards urban community gardens (UCGs) among 1142 residents in Changsha, China. While government decision-makers often refuse UCGs, residents' attitudes, perceived behavioral control, and subjective norms positively impacted their behavioral intention towards UCGs. Perceived ES had a direct positive impact on behavioral intention, whereas perceived EDS had a direct negative impact.

Bethuel Sibongiseni Ngcamu · Environmental & Socio-economic Studies · Africa

This literature review explored the effects of urbanization on food security in Africa by reviewing eleven empirical journal articles. Findings indicate that rapid, unplanned urbanization has led to increased food insecurity, environmental degradation, and unsustainable food security, exacerbated by ill-prepared and incompetent governments. Key issues identified include poor government interventions, inadequate land-use planning, and high incompetency among urban planners.

Grete Swensen, Vebjørn Egner Stafseng, Véronique Karine Simon · International Journal of Heritage Studies · France (Bordeaux)

This comparative case study examines two regeneration projects, the Darwin Ecosystem Project in Bordeaux, France, and Dr. Dedichen’s Greenhouse in Oslo, Norway, to understand how heritage combined with urban gardening can enhance areas requiring regeneration. The study notes that conflicting economic, political, and cultural views are likely to affect the heritage discourse in marginalized urban areas. It describes how old buildings and historical fragments can be integrated into urban planning initiatives, with residents, artists, and citizen groups cooperating with planning authorities to transform neighborhoods.

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.

Gabe Arif Ditama Sinaga, Yani Kurniawan, Ayuni Kusumawati · Jurnal Ilmu Sosial dan Humaniora · Indonesia (Malang)

This reflective study, conducted with 30 informants in Malang City, Indonesia, investigated factors driving urban farming success during the COVID-19 pandemic. Previous research identified external constraints, such as minimal government intervention, and internal issues, like low public enthusiasm. However, this study found that during the pandemic, urban farming conditions, public enthusiasm, and government intervention increased. The research also correlated communal society and local cultural elements with urban farming activities, suggesting optimal practice when implemented at a community scale and linked to local culture.

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.

Zihao Chen, Lin Guo, Zilong Zhang · Highlights in Science Engineering and Technology · China (Shenzhen)

As urbanization accelerates in China, urban green space is becoming increasingly insufficient. This study analyzed Shenzhen's current three-dimensional greening policies and compared them with those of advanced foreign cities. The findings revealed three problems in Shenzhen's policies: a small scope of application, a lack of planning elements, and a low degree of compulsion. The paper proposes improvement solutions and optimization suggestions based on the governance experiences of other cities to address these shortcomings.

Susan Anne Mansel Fitzgerald · · Cuba

This chapter reviews various perspectives on urban agriculture in Havana, Cuba, focusing on farm types, food access, and cultural expressions. It highlights that research also addresses the hierarchies and power struggles surrounding urban agriculture sites and their integration into land-management systems. The study advocates for understanding the rhythms of everyday life to deepen insights into these sites.

Shawn Bodden · City · Hungary (Budapest)

This essay reflected on the everyday political work of community projects to open up space for new possibilities of living with difference within hostile political environments, drawing on Doreen Massey's ideas of space. Through the case of the Auróra community center in Budapest, Hungary, and its members' community garden project, it examined the mundane and local techniques community groups use to construct better possible futures. The analysis suggested the importance of analyzing the situated and ongoing "terms of engagement" through which people open up, or close down, better possible spaces and ways of living with difference.

Aisling Bailey, Jonathan Kingsley · Land · Australia (Melbourne)

This qualitative study explored perceptions of benefits and challenges in six urban community and allotment gardens in Melbourne, Australia, through semi-structured interviews with 23 participants. Findings identified perceived benefits and demographic patterns, but also highlighted challenges to participation due to insecurity around ongoing land access. The gardens were perceived to contribute to social and environmental wellbeing.

Ana Zazo Moratalla, Alejandro Orellana-McBride, Claudia Cerda-Inostroza · · Chile

A study investigated how Chilean urban planning has conceived productive agriculture within urban limits, analyzing the evolution of territorial planning instruments in five Chilean cases. While agriculture was once conceived as an urban use, changes in Chilean legislation have led to this activity being conceived as transitory and in fallow, inevitably transforming into other more profitable urban uses.