Research & reports

U.S. Environmental Protection Agency (EPA) · U.S. Environmental Protection Agency (EPA) · United States

This EPA page explains composting: food waste is responsible for 58% of landfill methane emissions and makes up 24.1% of municipal solid waste. Of the 66.2 million tons of food waste generated in the US in 2019, only 5% was composted. Compost adds organic matter and boosts soil microbial diversity, reduces reliance on chemical fertilizers and pesticides, and — because it is typically processed near where it is generated — supports local economies.

US Environmental Protection Agency (EPA) · U.S. Environmental Protection Agency (EPA) · United States

An EPA overview page on green infrastructure, explaining that rain or snow can pick up trash and chemicals as it flows into storm drains, and introducing solutions such as rain gardens, planter boxes, green roofs, and permeable pavement. The page does not present specific numeric data.

Philadelphia Water Department · Philadelphia Water Department · United States

Philadelphia Water Department's 25-year plan (2011-2036) is required to reduce combined sewer overflow pollution by at least 85 percent. In its first decade the program installed more than 2,800 green tools across nearly 800 sites, keeping more than 2.7 billion gallons of polluted water out of waterways. The Schuylkill River alone is credited with $589.9 million in annual economic impact, 6,154 jobs, and $37.7 million in annual tax revenue.

· Wikipedia · United States

A bioswale is a vegetated drainage channel that captures and breaks down sediment, organic matter, pathogens, nutrients, and heavy metals from stormwater runoff via plants and soil. At Willamette River Park in Portland (1996), 2,330 lineal feet of bioswale reduced suspended solids entering the river by 50%, and New York City has built more than 11,000 curbside bioswales.

FOVIDA - Fomento de la Vida · FOVIDA (Fomento de la Vida) · Peru

Peruvian NGO FOVIDA (Fomento de la Vida) reported on 11 May 2026 on an award ceremony held 30 April 2026 in Lima Sur (Villa María del Triunfo, Villa El Salvador and San Juan de Miraflores), where more than 30 urban agriculture experiences were recognized through a photo and video contest highlighting home, school and community gardens' contributions to food security and climate resilience. Winner Victoria Arce Arguedas stated that "90% of those of us who participate in the gardens are women," while fellow winner Odilia Delgado said gardening has been a major boost to the mental health of older adults like herself.

Rita de Cássia Lisboa Ribeiro, Cecília Rocha, Andhressa Araújo Fagundes · Urban Planning · Brazil

An integrative literature review investigated the potential of Community-Supported Agriculture (CSA) to promote food security in Brazil. CSA can ensure a decent income for family farmers, reducing social vulnerability, and shows significant potential for promoting food sustainability due to its strong influence from agroecology. However, CSA faces a significant limitation in the elitization of this movement, reflecting historical social inequalities where only a relatively small portion of the population can afford healthier food.

Joabson Almeida Freitas Souza, Liza Maria Souza de Andrade · Periódico Técnico e Científico Cidades Verdes · Brazil

This study analyzed the role of Nature-based Solutions (NbS) in revitalizing public spaces in Brazilian peripheral areas through a systematic literature review. Findings indicate that interventions like community gardens and green roofs can reduce heat islands, improve drainage, and strengthen community bonds. The research also identified Brazilian public policy advances, such as the National Policy on Climate Change, supporting NbS integration in urban planning for vulnerable territories.

R. Salazar, Abraham Rojano Aguilar, Jorge Flores Velázquez · Regiones y Desarrollo Sustentable · Mexico (Mexico City)

This study aimed to estimate the volume of rainwater that can be stored in 13 urban gardens in Mexico City over one year to supplement irrigation water requirements. Using precipitation data from 2007-2018 from 12 meteorological stations, the study calculated the 80% exceedance probability for rainwater capture. The 13 gardens were categorized into three climate-based groups to assess their potential for rainwater harvesting, addressing water shortages in the metropolitan area.

Emanoel de Jesus Aquino Moreira, Amanda Beatriz de Souza Lopes, Edna Antônia da Silva Brito · Caderno Pedagógico · Brazil (Moju)

In Moju, Brazil, a study conducted from August to November 2024 investigated the importance of urban productive backyards by collecting qualitative and quantitative data from a representative group of residents practicing them. Questionnaires gathered information on food production, consumption frequency, food expenses, sustainable practices, and knowledge of food security. The findings indicate that urban productive backyards in Moju can significantly contribute to improving local food security by providing direct access to fresh, healthy, and low-cost food.

Ramírez Pérez, Norma Verónica, Padilla Medina, José Alfredo, Cárdenas Manríquez, Marcela, Araujo Rodríguez, Jessica Alejandra, Barranco Gutiérrez, Alejandro Israel, Prado Olivarez, Juan · Dialnet (Universidad de la Rioja) · Mexico

This article analyzes the technical feasibility, energy efficiency, political, and economic viability of urban agriculture (UA) in Mexico, considering its advantages, disadvantages, and conditions favoring soilless cultivation. The study, based on a systematic review and meta-analysis using the PRISMA protocol, aims to provide scientific evidence on UA's technical, economic, and energy feasibility. It highlights that UA faces technical, political, and economic challenges that limit its development and expansion.

Luyanne Catarina Lourenço de Azevedo · Revista Brasileira de Educação em Geografia · Brazil (Rio de Janeiro)

The "Sidney Bueno School Garden Project," carried out at Municipal School São Paulo in Rio de Janeiro between 2022 and 2023, aimed to create a garden based on agroecology and permaculture principles. Integrating school geography concepts and curriculum content related to environment and sustainability, the project sought to develop an understanding of interactions between space, society, and nature. Student involvement promoted cartographic literacy and stimulated autonomy.

Ana Zepeda, Maria C. Ortíz-Rivera, Clare Cannon, Amanda Crump · The Professional Geographer · United States

This research, conducted in San Juan, Puerto Rico in July 2019, investigates how women experienced the impacts of Hurricane Maria on their urban farms (huertos urbanos). Findings show that while many women enjoy urban farming and it provides fresh produce, almost all women farmers experienced a decline in volunteer participation a few years after the farms' establishment and even more so after Hurricane Maria. Despite this, many women described the urban farms as very important for community food cultivation and gathering.

Katherine Klink · Urban Climate · United States

This study examined whether an urban farm in St. Paul, Minnesota, USA, could mitigate urban heat, using six years of hourly temperature measurements. Mean monthly temperatures at the farm did not differ significantly from nearby tree-covered green spaces. However, mean monthly minimum temperatures at the farm in July and August were approximately 1 °C cooler than the broader urbanized area, with no significant differences in maximum temperatures. These findings suggest the urban farm can potentially reduce the nocturnal urban heat island effect without worsening the daytime effect.

Yingqi Zhu · Journal of Humanities and Social Sciences Studies · United States (New York City)

This study analyzes innovative urban planning responses in New York City following the COVID-19 pandemic, examining the intersection of reverse globalization and resilient city theory. It investigates how NYC's adaptive initiatives, such as the Open Streets program and upscaling urban agriculture, improved local autonomy, flexibility, and community resilience. The research assesses how decentralized, neighborhood-scale solutions and participatory governance systems can address urban vulnerabilities and promote long-term sustainability, offering planning lessons for other global cities.

Peter Nixon, Anu Ramaswami · Environmental Research Letters · United States

This paper quantifies environmental benefits and disbenefits from various vegetable farming localization scenarios across 378 US metropolitan areas. While scenarios found few significant land constraints and revealed net environmental benefits to groundwater overdraft and fertilizer-related PM2.5 emissions in 11%–55% of metros, the model also revealed where relocalization would exacerbate existing environmental vulnerabilities. This indicates potential environmental tradeoffs depending on the location.

Jennifer Temmer, Alison Blay‐Palmer, Andrew Spring · Canadian Food Studies / La Revue canadienne des études sur l alimentation · Canada (Northwest Territories)

A Participatory Action Research study in Kakisa, Northwest Territories, applied the Community Agroecological Values Framework to food system planning. While the community successfully leveraged extra-regional resources by building relationships with organizations outside the territory, findings indicated that unstable relationships and conflicting perspectives regarding land use and agriculture constrained access to critical regional supports, including gardening knowledge networks, funding, and training opportunities. This study highlights the necessity of both short-term regional support and long-term local capacity building for sustainable food production.

Ivanjack, Katherine Rose, Preciado, Kylie J · DigitalCommons - CalPoly (California State Polytechnic University) · United States (California)

This senior capstone project aims to explore the potential of urban agriculture to address critical challenges in sustainability, food security, and community development within California cities. The project highlights practical and innovative approaches to urban farming that can be adopted or adapted to suit the unique needs of urban areas across the state.

Aprilia Shyntia Dewi, Muchlisiniyati Safeyah · Sinektika Jurnal Arsitektur · United States

This qualitative descriptive study analyzed the application of permaculture design principles through architectural elements at Vertical Harvest Farms, USA, using secondary data. The research found that Vertical Harvest Farms largely incorporates permaculture design principles through architectural elements, such as greenhouse-based materials adapted to local climate and optimal spatial arrangement. However, regarding mass typology, the farm was found to be less compliant with the permaculture design principle of "Design from Pattern to Detail."

F. Xavier Medina, José Antonio Vázquez–Medina, Marco Covarrubias · Edward Elgar Publishing eBooks · Mexico (Mexico City)

This chapter discusses the factors linking food production, social and environmental problems, and future challenges in the chinampas of Xochimilco, a UNESCO World Heritage wetland area in Mexico City's peri-urban zone. It examines strategies implemented by stakeholders and their effects to envision future scenarios for sustainable food systems. The insularity of the chinampas imposes a particular character on agri-food production and the life of inhabitants, highlighting existing social and environmental problems.

Johnny Jean, Nildo da Silva Dias, Nildo da Silva Dias, Alison Rocha de Aragão, A. JEAN, Patrícia Lígia Dantas de Morais, Rogério Taygra Vasconcelos Fernandes, Leonardo Angelo Mendonça, Vânia Christina Nascimento Porto, Khadidja Dantas Rocha de Lima · OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA · Brazil (Mossoró)

This study aimed to identify and georeference suitable spaces for urban and peri-urban agriculture (UPA) in three neighborhoods of Mossoró, Brazil: Nova Betânia, Sussuarana, and Vingt Rosado. The research found that out of 1,300 hectares in these neighborhoods, 944.1 hectares are suitable for UPA. However, the study identified a lack of public policies to incentivize UPA in these areas.

Adriano N. Roberto, Andrés G. Rolhauser, J. Scott MacIvor, Marney E. Isaac · Renewable Agriculture and Food Systems · Canada (Toronto)

This study investigated plant facilitation in rooftop agriculture in Toronto, Canada, testing whether live Sedum could improve bush bean performance on 48 extensive green roof (EGR) modules under high and low watering regimes. Water availability had a greater influence on bean performance than planting design, with beans grown with artificial Sedum under high watering showing the highest yield, while performance declined significantly under low water, particularly with live Sedum. Contrary to hypotheses, live Sedum did not consistently facilitate bean performance, suggesting potential competitive interactions may have outweighed any stress-ameliorating effects. These findings indicate water management is the main management variable for crops on EGRs.

Sofía Aguado, Helena Cotler, Marta Astier, Alejandro Padilla‐Rivera · Circular Economy and Sustainability · Latin America

This literature review examined methodologies applicable to municipal composting systems linked to urban agricultural production, with a specific focus on the Latin American context. It revealed a lack of structured methodologies to assess the circularity of municipal organic waste management systems and their connection with urban agriculture, particularly in heterogeneous contexts like Latin American cities, despite numerous existing evaluation methods. Life Cycle Assessment (LCA) is commonly used but often prioritizes environmental impacts, neglecting social, economic, and circularity dimensions.

Maria de Nazareth Oliveira Maciel, Herdjânia Veras de Lima, Daniel Pereira Pinheiro, Luann Yago Oliveira Maciel · Contribuciones a las Ciencias Sociales · Brazil (Belém)

This field research analyzed urban agriculture's contributions to 12 of 17 SDGs in Ananindeua, Belém, and Marituba, Pará, Brazil. A Likert scale questionnaire and participant observation were used with 120 agricultural producers. Multivariate Factor Analysis and Tukey's test (5%) showed Ananindeua had a higher factorial score, statistically differing from Belém but not Marituba. Producers in Ananindeua demonstrated a greater perception of sustainable cities, indicating urban agriculture's contributions to SDGs in all three municipalities, with Ananindeua showing greater effectiveness.

Juan Camilo Fontalvo-Buelvas, María Teresa Pulido Silva, Miguel Ángel Escalona Aguilar · Ediciones Comunicación Científica eBooks · Mexico (Xalapa-Enríquez, Veracruz)

This ethnographic study in Xalapa-Enríquez, Veracruz, Mexico, examined the flow of knowledge and the formation of learning communities around 20 urban gardens using in-depth interviews. Findings indicate that knowledge originates from multiple sources, is hybridized through practice, and then mobilized among social actors who provide feedback and re-signify it within learning and practice communities. This process fosters citizen networks and collective action in a medium-sized city.

Édipo Alves Lacerda · Espiral revista de geografías y ciencias sociales · Brazil

This book, organized by Gustavo Henrique Cepolini Ferreira et al., compiles texts from Unimontes researchers focused on critical geography and popular struggles for land and traditional territories in northern Minas Gerais, Brazil. It discusses conflicts from agribusiness expansion, disputes over resources, climate change effects on peasant farming, and challenges faced by quilombolas, indigenous, and traditional communities. The book addresses structural racism and other aspects of rural development, highlighting negative impacts on these communities.