Point location, which indicates where the NBS takes place

Intercultural Garden Nuremberg Langwasser e.V. is a community garden project aimed at sustainable urban development and tolerance between different social and cultural groups. People of different origins work together on their own plots (about 25 m² each), without a fences between neighbouring plots and consciously in interaction through horticulture and other activities. All the grounds are used as vegetable and flower gardens. Environmentally friendly production is desired and promoted (1). Other opportunities offered in the garden are intercultural activities and self-designed educational work. (10) The association actively promotes integration through social activities, which, as stated by the association “can include things like providing German lessons, organizing small festivals and even settling of a dispute happened once”. (7)

The Salitre Garden was a public park inaugurated in 1994 and built around the area of the former gunpowder factory. For this reason, it is also known as the Garden of Gunpowder (Ref 2). It is a green space planned in the urban centre, that has gone through different rehabilitation and remodelling stages. The first one was in 1987 when the land was bought by the municipality and made into the park (Ref 2 and 3). The second one was in 2012 by covering a green space around the powder factory (Ref 5). Another one was the inclusion of a new green labyrinth was installed in 2017 (Ref 4). The last one was in 2020 when a new botanical garden will be created on the island, with an open-air gym and a children's area (Ref 8).

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).

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).

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).

The Foz do Douro Urban Park located in the west of Porto city is a green area for public use inserted into a recently developed urban area, which has been progressively been built along the Atlantic seafront since the nineteenth century and the Park is part of an overall project submitted in the competition Nuno Álvares Avenue Plan promoted by the Porto Municipality. With approximately 5ha, Foz do Douro Urban Park clearly contributes to increasing the rates of existing green areas for public use, increasing the availability of open spaces for the local and regional level. (1)

On the territory of the former train station Vohwinkel (including the train tracks) a brownfield site of 15 ha was turned into a commercial urban area which was created as an economic driver for Wuppertal. However, the site was inhabited by the highly endangered sand lizard, which is why a species conservation island was created as the commercial park was being built. As a habitat of the endangered sand lizard species, the conservation area in the South-West of the commercial park remained free from construction development, and an adequate conservation concept was elaborated and implemented. The nature conservation area is maintained by the environmental protection department of the city. (Ref. 1 and 6). The project succeeded in its goal of creating a commercial area on the former Vohwinkel marshalling yard while simultaneously paying attention to the protection of the endangered sand lizard. (Ref. 2) Additionally to the conservation area within and around the commercial zone, lizards have also been relocated beyond the city limits as a biodiversity offsetting measure. (Ref. 8) Furthermore, the dried out Krutscheider stream, forming part of an important biotope system with its gravel surfaces, was dug out again to serve as a green corridor for compensation against the habitat loss. (Ref. 1, 4 and 6)

Offord Road community garden is a place for the residents of West Reading (i.e. those who live, work, go to school in the area). Reading Borough Council set up the community garden (i.e. the green space) at the Oxford Road end of Western Elms Avenue through a grant called ‘Section 106’ (thus giving the site back to the community in 1996). (Ref. 1, 2, 7)

‘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).

A green roof of the total area of 362 m2 was established in a modernized historic neighbourhood in the centre of Bydgoszcz. The rooftop serves aesthetic and recreational purposes for the residents and visitors. Selected plants retain as much as 40-99% of rainwater and absorb air pollution [1].