Climate change mitigation

The Urban Forest project represents an increase of urban trees in the city. There will be two phases of this project. In the first, it consists of a transformation of an eye-sore and abandoned space, around previous Canodrome, into a large urban forest (Ref 1, 9). The second one will be located in the land of the velodrome of Es Tirador. This projec has been delaid due to unforeseen costs (Ref 10).

The Lolli-Malaspina area of the central station intervention aims to replace the current urban space and to replace it with a system that can complete and integrate the existing one, and generate a new centrality, transforming the current laceration into an urban seam. There are new gardens outside the central station, which link the different areas of the railway, and it has been implemented because the area of the central station is a strategical node for the city which has to be reinforced with new green areas. (Ref.1.)

On an office building, one of the largest green walls of Belgium was created (50.000 plants) that improves air quality, reduces heat stress, and improves biodiversity. The green wall also isolates the building, resulting in less energy use (Ref. 1-3). The wall consists of a variety of native plants and is irrigated with water collected on the roof of the building (Ref. 1, 2).

The intervention is a project of historic memory, it seeks to pay tribute to those individuals who were taken and assassinated as part of the resistance movement during the Civil War and the Franco dictatorship by planting a forest with Mediterranean species. In the forest, each tree represents one of these persons, thus combining aspects of recent history with the natural environment. (ref 1) Each tree represents real people, as the project collaborated with the families of the victims (Ref 1), to create a space of conscience about what happened in the Franco's period, as well as a memorial for them.

The Faktory project claims to be the first European smart greenhouse, located in the Science Park of Liege. The building serves as a Private Incubator of young start-ups focusing on tech, but it has sustainability goals, too; it is a showcase of urban agriculture, there is biodiversity integration, and the plants produced in the building contribute to supplying the cafeteria (Ref. 1).

'Proeftuin Erasmusveld' is a new and sustainable urban residential area in The Hague. It will be a new nature-inclusive, energy-efficient, car-free neighbourhood that is created for plants, animals and people promoting healthy living (1). As of November 2020, The building of the neighbourhood with its unique houses and buildings is still in progress (1).

Currently, the area is an 'experimental area' for all kinds of sustainability initiatives that may be used for the realization of the neighbourhood, including self-sufficient 'tiny houses' and urban farmland (1,2). The ambition for Erasmusveld is to become a leading sustainable neighbourhood with a sustainable water system, the use of sustainable energy and a vegetable garden with high connectedness between citizens (4).

The municipality of Catania has promoted an initiative that involves schools and non-profit associations, for which available space for urban gardens and horticulture has been provided. The main aim was to regenerate areas which were used abusively as landfills and for criminal activities. What will be produced must strictly conform to the principles of sustainable production, by using biological products and 0 environmental impact techniques. (Ref.1.)

Located in the south of the town, this garden is an ideal place for family walks. Very popular, it also responds to a scientific vocation for the conservation of plant species from the five continents. In the spring of 2013, the Jardin des Plantes was enriched by a honey garden with a pedagogical vocation, which houses plants whose juice is used by bees to produce honey. The City of Rouen undertook the renovation of historic greenhouses, work on which was completed in 2019. The objective is to enhance the treasures of this extraordinary greenery (Ref. 1). "The collections reach more than 6000 species and the garden contributes to the development of sciences, to the preparation of medical students and to the dissemination of species, thanks to the exchange of seeds" (Ref. 10).

Birkenhead Park is one of the most important public parks in Britain. It is registered Grade I in English Heritage’s Register of Parks and Gardens of Special Historic Interest. In 2002 to 2007, funding was made available to restore the park, and now in 2017 a master plan aims to further “enhance and secure” the park. (Ref. 1, 2, 3). Birkenhead park is considered the first publicly funded park in the world, and not only holds the Grade I in English Heritage’s Register of Parks and Gardens of Special Historic Interest award but also the Green Flag award. (Ref 6, 7, 8)

The Center for Initiatives for an Ecological Transition (CITE ASBL) developed an eco-center; a center of demonstration of the techniques respectful of the environment, that functions as an educational community garden. They wanted to create an ecologically-managed and user-friendly green space, that is conducive to the exchange of knowledge and skills but also to mutual aid and dialogue (Ref. 1). Located on the meadow of the Bâneux, in the Saint-léonard district of Liège, the eco-center is integrated in the eastern part of the slopes of the citadel of Liège. (The plot of the eco-center is located on the vestiges of the old coal mine of Bâneux that was closed in 1942.) .Characteristics of the place include proximity to a multicultural urban center, post-industrial environment, accessible by public transport, natural area of tourist interest (Ref. 2).