Arrenberg climate district: Arrenbergfarm
Based on an urban regeneration project in the city district of Arrenberg, an association called “Awakening of the Arrenberg” formed in 2008, consisting of citizens, entrepreneurs and real estate owners seeking to transform their district. Under the umbrella of the project “climate quarter Arrenberg” initiated in 2014, whose goal is to make the district CO2 neutral by 2030, the development of a city farm covering 60,000 sqm on former railway premises - a Europe-wide unique project in urban farming – is one of their most important plans that make up their vision of becoming carbon neutral. (Ref. 1, 2 and 3). The goal of the farm is to produce healthy and locally produced food, while creating employment opportunities and remaining carbon-neutral, using power only from the sustainable power plant that will be installed for the project. (Ref. 2) In February 2020, the implementation has not yet started, but the “Awakening of the Arrenberg” association says the vision of the urban farm is stronger than ever before and that the project has received funding approval, with experts now working on feasibility studies. (Ref. 8).
Nature conservation area Eskesberg on former landfill
From 1850 to 1956 the area Eskesberg was a limestone mine, after that up until 1972 it served as a landfill. When taken over by the city of Wuppertal, groundwater contamination and outgassing required a large remediation to remove toxic substances and recover the area according to nature conservation guidelines. (Ref. 8) Since 2005, it has been turned into a nature conservation area covering 8.5 ha where several rare plants and animals have resettled and thus the area also serves as an important recreational space for residents (Ref. 1, 2, and 3). The project was initiated by the local government, who also collaborate with different partners for maintaining the nature conservation area, such as the biological station, which organizes excursions, performs monitoring on the terrain and sets up bee hives. Also, residents apart from visiting the area can actively participate in its maintenance as volunteers, guided by the city of Wuppertal and the NGO Biologische Station Mittlere Wupper. Furthermore, the nature conservation association of Wuppertal and scientists from the university of Cologne are involved in the intervention by conducting research on the terrain (Ref. 1, 2, 3 and 6).
Green Roof on Theatre
On 'De Roma', an old cinema that has been renovated into a theatre, a green roof of 650m2 was created which improves biodiversity and contributes to Antwerp's climate change adaptation (Ref. 1, 4). A bee house was also later installed on the roof (Ref. 2). The green roof is created by volunteers of De Roma and Kopspel, which is an organization that provides learning-working places for student of 'Deeltijds beroepssecundair onderwijs (Part-time Secondary Professional Education) and temporary employment for people that want to turn back to the labour market (Ref. 1).
Community Garden Colorietenhof
‘Colorieten Hof’ is a community garden in which vegetables, herbs and flowers are grown sustainably. The garden is a social meeting place for elderly, neighborhood citizens and female immigrants who can learn Dutch and about Belgian culture (Ref. 1, 3).
Solidarity Community Gardens
In 2017, the municipality of Sintra approved the municipal Solidarity Gardens Program, which aims at enabling the inhabitants of Sintra to "value solidarity and, in some way, value natural resources" (ref.4).
This intervention aims to create small gardens in urban areas. Not only as a tool for subsistence for families in situations of social vulnerability but also to generate access to areas that tend to deteriorate, through correct management and profitability of resources. Eventually, the NBS aims to promote actions for the implementation of sustainable urban development, focused on strengthening family and local agriculture (1)
This intervention aims to create small gardens in urban areas. Not only as a tool for subsistence for families in situations of social vulnerability but also to generate access to areas that tend to deteriorate, through correct management and profitability of resources. Eventually, the NBS aims to promote actions for the implementation of sustainable urban development, focused on strengthening family and local agriculture (1)
Utopia town Wuppertal urban gardening project
On the brownfield of an abandoned train station and its surrounding terrain, active citizens and neighbors developed Utopia town, a living lab for creative urban development, cultural and creative industries, and citizen engagement. Under the guiding principle “edible train station – edible town", next to other projects, an urban garden with organic cultivation was developed on 1,000 sqm of the terrain at the former train station Mirke as a focus area for their activities due to its favourable location in order to show that gardening is possible in urban spaces, even on balconies or terraces (Ref. 1, 2, and 3). The main building of the Utopiatown has a bar, a concert venue, a food sharing station, and a free bicycle lending service that is operated by volunteers. (Ref. 9). Gardening workshops that are offered to citizens with little experience of gardening are planned to be further extended with seminars and practice classes for students (Ref. 3). Since its beginning, the area of the “utopia town” has grown rapidly and is now providing opportunities for multidisciplinary academic research. (Ref. 12)
Starling on the Doorstep
Students and teachers of the Faculty of Biology at St. Kliment Ohridski University created a habitat for birds, invertebrate species, and plants. The project aimed to popularise easy steps for increasing biodiversity in urban green spaces and effective practices for preserving it. The created habitat also aims to develop and solidify the biological and conservation knowledge of pupils, university students, and the citizens of Sofia, and to help restore the vanishing bondage between contemporary society and nature. Activities have included planting grasses and shrubs by volunteers, placing bird houses, and educational events. (Ref. 1). For the purposes of "Starling on the doorstep" volunteers among students and teachers of the Faculty of Biology began to develop some of the green spaces in front of the building by enriching the surrounding vegetation, and with it the diversity of animals. It was important for them that the transformation took place right in the yard of the faculty, where the future biologists are trained - the people called to take competent care of nature conservation. The idea for the initiative was warmly accepted by both the dean's management of the faculty and the ecology expert from the Municipality of Lozenets, on whose territory the school is located. (Ref 3)
Palermo green: clean and inclusive city
The project has the goal to promote volunteering related to environmental protection. The community-based initiative involves disabled people to implement the intervention - with the supervision of specific tutors - to prove that they can be an active part of the population. Activities included taking care of several green areas and implementation of social horticulture gardens. (Ref.1.)
Palermo Waterfront
This intervention is part of a broader masterplan regarding harbours and seacoast in Palermo, with a specific focus on the Cala coastal area. The waterfront has importance for the city not just as a harbour, but for its relational, cultural and recreational functions as well. In particular, the Molo Trapezoidale can become the new “water district” in which compatible port functions will be integrated with the existing urban functions and the new residential areas, as well as the new cultural and recreational services with new infrastructures linked with natural features such as green areas and trees. (Ref.1.)
Community bio-garden Vitosha
A communal bio-garden was created by a group of citizens in Sofia in 2014 on a municipal piece of land. The creation of the garden was supported by the Municipality through their programme “Green Sofia”. The aim of the project was to turn an abandoned and degraded green area into an “island of biodiversity” and a place for urban gardening. The garden contains herbs, vegetables, and flowers, dwelling places for useful insects, and a compost bin. The benefits of the garden have been ecological, educational, and social, including refugee integration. (Ref. 1; Ref. 2; Ref. 3; Ref. 4) According to their Facebook group in 2020, the 4 acre garden and the community that has organised around it is still thriving. (Ref 10)

