Ronald McDonald House Essen in Grugapark
The Ronald McDonald House is a temporary home for families with seriously ill children who are treated at the Essen University Hospital. The house was designed by the artist Friedensreich Hundertwasser, who merged the garden and architecture together in order to bring residents of the house closer to nature improving their psychological and health conditions (Ref. 1). The house was opened in 2005 in Essen's Grugapark (Ref. 2). A special highlight is the accessible intensive Green Roof (950 sqm) with grass, herbs, flowers, shrubs, and trees (Ref. 3).
Elster-Luppe wetland: Revitalization and renaturalization
Due to human interventions into the natural river flow with dykes, drainage of agricultural and grassland or cutting off its water bodies, the wetland Elster-Luppe had lost its groundwater base which decreased its biodiversity. With the support of the regional biodiversity fund and building on previous efforts, the city of Leipzig, together with partners such as the NABU Sachsen and research institutions, has revitalized, renaturalized and connected the water bodies of Leipzig's North-Western wetlands to one continuous watercourse since 2012. Its objective is restoring its ecosystem functions and increasing awareness for the importance of wetlands (4, 5).
The Bizardin community garden
The Bizardin is the community garden of Hellemmes, created by the association AJOnc (Amis des Jardins Ouverts et néanmoins clôturés) on the initiative of a group of inhabitants. Managed by the locals, it gives life to the neighborhood where children like to play, watch insects, sow radishes, watch for frogs. A living garden where wild and cultivated plants come together and create a floristic richness often unsuspected by the simple passer-by, a result of many years of work. It is also an ideal place to observe as insects and birds swarm. (Ref 1)
Green My City
The Toulouse based project Green My City is a community collective focused on promoting sustainable consumption and creating a sustainable environment, (Ref. 2) It anticipates constructing thousands of square meters of organic vegetable gardens on the roofs of the city of Toulouse, saving 50 tons of CO2 emissions per year. The project defines itself as a prospective tool, which intervenes in the stream of gardening initiatives: it maps, selects, and then accompanies the initiatives (Ref. 1). The project supports the realisation of environmental initiatives by engaging citizens, communities, businesses and designers to help create an urban oasis (Ref. 23).
100 trees and 100 bushes for the Podgorze district
In 2013, local activists came up with an initiative to plant 100 trees and 100 bushes in different parts of the District XIII in Kraków. It was supposed to be financed by the participatory budget of Kraków. Still, the delay in implementation led to a situation when the second project by the same team (plant 101 trees and 101 bushes) overlapped with the previous one the following year. The city implemented the original idea, and the district received 100 trees and 101 bushes in 2015. The project aimed to increase the aesthetic and decorative value of the area and to increase the comfort of living of its inhabitants, as well to obtain funds for urban greenery management [1,3].
RISA - Rainwater InfraStructure Adaptation of Hamburg
The aim of the project is to implement a sustainable rainwater management in Hamburg that is adjusted to the heavy rainfalls attributed to global climate change. The project involves the analysis of pilot projects, including GIS-based analysis and the development of the city's rainwater structure plan 2030, Strukturplan Regenwasser 2030, (Reference 1) that will serve as a basis for the Integrated RainWater Management (IRWM) in Hamburg (Reference 5).
Rehabilitation of an industrial area into a park
EPAEM (Euromediterranean public development establishment) launched the development a new park of 14 hectares. Located in former industrial area at the gates of the northern districts of Marseille, it is considered to be one of the poorest districts in France (Ref. 1). The planned park Aygalades is divided into two parts: the southern part of 4 hectares called Bougainville Park and the northern part of 10 hectares which runs along the Aygalades river (Ref. 1). Development work on Bougainville Park is set to begin in September 2020 with completion in 2023 (Ref. 12). The park is described as "the first step of a large project to restore a highly degraded industrial site" (Ref. 12).
Nottingham in Bloom
“The Nottingham in Bloom campaign is a city-wide partnership which includes residents, businesses, schools, community groups and a wide range of volunteers. The aim is to encourage more people to get involved to improve their local area. Together they [through the campaign] produce horticultural excellence and enhance the local landscape, the environment and the character of Nottingham.” (Ref. 1)
Arkwright Meadows Community Gardens
Arkwright Meadows Community (AMC) Garden is situated in the heart of inner city Nottingham, Prior to 2001, the site was a disused, derelict and rubbish-strewn piece of land. In 2001, a group of Meadows residents came together to improve this derelict piece of land and work started to create the infrastructure of the community garden. The area was transformed into a green oasis and outdoor learning environment. (ref. 8)
Reforestation of Malaga’s Green Belt
The project is the reforestation of the peri-urban parks of the city of Malaga in order to make the city greener while adhering to the dry and hot climactic condition of the region. It consists of phases, where native trees to the region were planted totaling over 50 000 new trees in the city. (ref 1-10)

