Research & reports

Chris Blythe, Veronica Barry · · United Kingdom

This chapter examines urban farming and growing in the United Kingdom, advocating for a broader definition beyond purely productive practices to include social, political, and environmental interpretations. It explores how physical spaces in four Birmingham examples foster social interaction, drawing on practitioner experience, literature, and user perspectives. The aim is to provide insights into the value of these spaces as social landscapes for urban policy.

Sergi Ventura, J.R. Armengol Miró, David Camacho-Caballero, Enric Casellas, Ricard Segura-Barrero, Alberto Martilli, gara villalba · Urban Climate · Spain (Barcelona)

This study used the Pseudo Global Warming method and WRF model to assess urban heat adaptation strategies in the Metropolitan Area of Barcelona. Three strategies were evaluated: increasing rooftop albedo, implementing irrigated sedum green roofs, and increasing peri-urban agriculture and urban parks. While increasing rooftop albedo provided the greatest daytime cooling (−1.75 °C), and green roofs and peri-urban agriculture showed moderate regulation, none of the strategies fully counterbalanced the projected 6 °C temperature increase by 2100, indicating a limited capacity of these adaptations under severe warming scenarios.

Julia Spanier · Geoforum · Germany

A 2025 paper examines how community supported agriculture (CSA) performs and shapes rural-urban relations, based on four CSA initiatives in Germany. It finds that CSA does not automatically nurture "good intentions" between the urban and the rural, but can foster material solidarity and mutual understanding between urban consumers and rural producers. At the same time, it finds that hierarchical rural-urban relations, or rural/urban autonomy, may also be enacted within CSA, and that CSA can in some cases deepen processes of alienation between the rural and the urban, arguing that investigations of rural-urban relations in CSA must go beyond assessing producer-consumer relations alone.

Ministry of Housing, Communities & Local Government (MHCLG) · Ministry of Housing, Communities & Local Government (MHCLG) · United Kingdom

According to MHCLG's statistical release (published 9 October 2025), the extent of land designated as Green Belt in England as at 31 March 2025 was estimated at 1,633,220 hectares, around 12.5% of England's land area. This represents a decrease of 660 hectares (0.04%) from 31 March 2024, driven mainly by local authority boundary policy changes (650 hectares across six authorities) and digital boundary updates (10 hectares). By region, London has the highest proportion of its area designated Green Belt, at 22.1%.

Ministry of Housing, Communities & Local Government (MHCLG) · Ministry of Housing, Communities & Local Government (MHCLG) · United Kingdom

A technical note describing how the UK's MHCLG compiles official statistics on green belt land in England, collecting area figures as of 31 March each year from local authorities via the Annual Green Belt (AGB) return. The 2024-25 response rate was 99% across 177 local authorities, and prior-year area figures are subject to scheduled revisions.

European Environment Agency (EEA) · European Environment Agency (EEA) · Europe

According to this EEA indicator, water scarcity affected 28% of EU territory during at least one season in 2023. Although water abstraction fell 14% across the EU between 2000 and 2023, the area affected by water scarcity has not shrunk overall. Southern Europe experiences water scarcity year-round, with about 30% of the population in areas of permanent water stress and up to 70% in areas of seasonal summer stress; Cyprus and Malta are the most severely affected (seasonal WEI+ above 40%), with Greece, Romania, Portugal, Italy and Spain also notably affected in spring and summer.

· Wikipedia (español) · Spain

According to Spanish Wikipedia, the exact founding date of the Water Tribunal is unknown, though the most widely held theory dates it to around 960 CE, during the reign of a Caliph. It is made up of eight síndicos, one representing each irrigation community, one of whom generally serves a two-year term as president. It meets every Thursday at noon (except from Christmas to 6 January and on public holidays) at the 'Door of the Apostles' of Valencia Cathedral, with administrative meetings afterward at the Casa Vestuario on Plaza de la Virgen. It was inscribed by UNESCO as intangible cultural heritage on 30 September 2009.

· Viquipèdia (català) · Spain

According to Catalan Wikipedia, the irrigated farmland (horta) of Valencia took shape in the Middle Ages under Islamic rule through the construction of séquies (irrigation channels) and assuts (weirs). The main séquies of the Túria river have been governed since Islamic times by the Tribunal de les Aigües, inscribed by UNESCO as intangible cultural heritage in 2009. Eight séquies in the Vega de València draw water from the Túria and have historically supported orange, vegetable and rice cultivation, but many now run beneath houses and streets, with rice farming described as being in crisis as farmland is converted to housing.

Consell de la Generalitat Valenciana · Diari Oficial de la Generalitat Valenciana (DOGV) / BOE · Spain

A decree-law issued by the Consell (Valencian regional government) on 4 February 2025, published 5 February 2025, amending the 2018 Huerta law and its implementing plan (Decreto 219/2018) to simplify administrative procedures for reconstruction following the 29 October 2024 DANA flooding. It abolishes the Huerta Council and chapters on agrarian development planning and farm inventories, and relaxes urban-planning parameters for agricultural buildings.

· Wikipedia (Italian) · Italy

Parco Nord Milano is a roughly 640-hectare regional park spanning seven municipalities north of Milan, recognized as a regional park by the Lombardy Region in 1975. It contains over 350 hectares of green space with more than 100 tree species and diverse wildlife, managed by a consortium of the participating municipalities. It serves as an example of large-scale peri-urban green infrastructure.

· Wikipedia (Italian) · Italy

Cascina Linterno originated as a 12th-century monastic rural settlement and is a 13th-century Lombard closed-courtyard farmhouse now owned by the City of Milan and run by the Associazione amici della Cascina Linterno for cultural and historical activities. It is traditionally identified as the poet Petrarch's residence during his time in Milan (1353-1361) and is protected under both monumental and landscape preservation decrees.

Bellini, A., Savo, V., Caneva, G., D'Amico, E., Casalini, R., Bartoli, F. · Plants (Basel) · Italy

This study analyzed vegetation on an unmaintained green roof in Rome. Spontaneous colonization produced 62 species across 18 families, with Asteraceae (19 species, 31%) and Poaceae (10 species, 16%) most represented. Therophytes (annuals) dominated the life-form spectrum at 35 species (56%). Geographically, cosmopolitan species made up 25%, Mediterranean species 38%, and alien species 15%. Some originally planted species, such as Thymus, thrived through summer without irrigation.

· Wikipedia (de) · Germany

Carl Rabitz (1823–1891) was a German master mason and builder. In 1867 he published a pamphlet titled 'Natural Roofs with Volcanic Cement,' promoting greened flat roofs as garden roofs, and exhibited a greened flat roof at the Paris World's Fair the same year. In 1864 he invented a fire-resistant plaster ceiling technique for use under wooden beams, and in 1878 he patented the Rabitz wall (a lath-and-plaster wall construction method).

Global Generation · Global Generation · United Kingdom

An article by Global Generation reflecting on a decade of the Skip Garden — a mobile garden built from reused waste skips — in King's Cross, London, describing how it grew from six or seven skips into a space with rooftop planters, a polytunnel, and areas for herbs, vegetables, fruit trees, and composting.

Sarah Bell, Charlotte Johnson, Tse‐Hui Teh, Kat Austen, Gemma Moore · · United Kingdom (London)

This chapter explores co-design in developing urban infrastructures, presenting a six-step "Bottom-Up Infrastructure" model. The method was applied to a rooftop garden on a London social-housing estate, intended to function as drainage infrastructure. The case study revealed the potential for co-design, but also highlighted significant constraints on implementation in cities where communities possess limited power and resources.

Matteo Clementi, Valentina Dessì, Giulio Maria Podestà, Szu-Cheng Chien, Barbara Ang Ting Wei, Elena Lucchi · Sustainability · Italy (Milan)

This study proposes an open-source Digital Twin model based on a geographical information system (GIS) for optimizing solar radiation mapping in urban agriculture design. The model considers complex microclimatic variables in urban environments and integrates available open data with in-situ measurements to develop a set of maps for urban farmers and designers. Initially tested on a neighborhood in Milan, Italy, the model's replicability and effectiveness were verified.

Claudinei da Silva [UNESP] Pereira, Antonio Nivaldo [UNESP] Hespanhol · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Europe

This article analyzes agriculture practiced in European cities and their surroundings, tracing its evolution from an essential food security practice in early cities to its decline after the First Industrial Revolution. It examines how the expansion of urbanization and structural transformations of the capitalist economy from the 19th century led to the reduction or disappearance of urban agriculture in major European cities. This shift resulted in a specialized food market supplied by distant producers, highlighting the changing relationship between agriculture, urban morphology, the labor market, and food supply.

Géant Basimine Chuma, Jean M. Mondo, Adrien Byamungu Ndeko, Etienne M. Akuzibwe, Espoir Mukengere Bagula, Gustave Nachigera Mushagalusa · Discover Sustainability · Democratic Republic of Congo (Bukavu City)

This study investigated the quantity, composition, and disposal practices of domestic waste in Bukavu City, Eastern D.R. Congo. Findings revealed significant challenges in waste management infrastructure and practices, showing that approximately 5% of waste undergoes composting, while 10% is used as livestock feed, 66% incinerated, and 17% buried. Waste management is primarily handled by children (82%), with very limited involvement from non-governmental organizations.

Louis Champalle · Approches Théoriques en Information-Communication (ATIC) · France

This article examines how a community garden and its managing association in a French metropolis mediate representations of their surrounding environment through gardening practices and "nature in the city." An ethnographic study within the garden describes spatialization through strategies from the garden to its environment and tactics from the environment to the garden, particularly concerning openness and closure.

Justyna Kleszcz · Architecture Civil Engineering Environment · Europe

This research summarizes the role of urban, multi-purpose facilities combining commercial, service, industrial, and urban agriculture functions with residential housing in revitalizing neglected districts. It aims to support the thesis that urban agriculture acts as a catalyst for urban transformation. The study uses historical and interpretative mixed research with three case studies: Abattoir BIGH in Anderlecht (Belgium), Agrotopia (Inagro) in Roeselare (Belgium), and La Cité Maraîchère in Romainville (France).

Ann-Kristin Steines, Michele D’Ostuni, Anna Wissman, Kathrin Specht, Chiara Iodice, Runrid Fox-Kämper, Francesco Monticone, Isabella Righini, Véronique Saint-Gès, Antonella Samoggia, Francesco Orsini · Cities · Europe

This research addressed international and national policies, as well as related constraints and challenges affecting City Region Food System (CRFS) development in six European countries. Data was collected through desktop research, stakeholder interviews, and a workshop. The study found that planning laws restrict possibilities for food production in cities, and legal frameworks prevent the marketing and sale of food produced by non-commercial actors or informal farmers. It also identified a need to expand vocational training in the agricultural sector.

Claudinei da Silva Pereira, Antônio Nivaldo Hespanhol · Boletim Goiano de Geografia · Europe

This paper aims to understand agriculture practiced in cities and their surroundings in the European context, in terms of its purposes, relationships with the labor market, and food supply. Structural transformations of the capitalist economy since the 19th century led to the reduction or disappearance of urban agriculture in certain areas of major European cities. This resulted in the formation of a specialized food market, where merchants acquire food produced in areas increasingly distant from the final consumer.

Giovanbattista Califano, Anders Crichton-Fock, Charles Spence · Future Foods · United Kingdom

Consumer attitudes toward novel fresh herb cultivation methods, including urban farming, hydroponics, and robotic cultivation, were explored among 148 participants in the UK. Urban farming was the preferred method, followed by hydroponics, with robotic cultivation being the least favored. High consumer environmental concern positively influenced acceptance of parsley from urban farming, while food technology neophobia negatively impacted consumer acceptance of hydroponic and robotic cultivation methods. The exploratory nature of this study may limit the generalizability of its results.

Lorenzo Stefano Iannizzotto, Alexandra Paio, Camilla Perrone · Contesti Città territori progetti · Europe

This paper defines "Vague Farms" as projects in urban vacant spaces that combine urban gardening and local food production with the preservation of informal and spontaneous characteristics of "Terrain Vague." It analyzes five case studies from different European cities to illustrate the emergence of these practices. The study provides a theoretical introduction to Terrain Vague, examines community urban garden projects through the lens of Urban Commons, and proposes a definition of Vague Farms and their characteristics.

Alexander Follmann, Dorothea Hohengarten · transcript Verlag eBooks · Germany (Cologne)

This publication, titled "Ernährungsrat, Essbare Stadt, Gemeinschaftsgärten: Innere und äußere Logiken und Widersprüche der sozialökologischen Transformation durch Urban Gardening am Beispiel Köln," discusses the internal and external logics and contradictions of socio-ecological transformation through urban gardening, using Cologne as an example. The abstract states that this work was published in "Unterwegs in die Stadt der Zukunft" on page 241.