Parkbogen Ost - Green belt project
When the national German railway company shut down parts of the former East station of Leipzig and its tracks in 2012, citizens developed an idea for its secondary use and came up with the concept of the "Parkbogen Ost" which represents a 5-kilometre long circle of bicycle lanes, footpaths and outdoor space surrounding the East of Leipzig. The city of Leipzig recognized its potential to connect the Eastern Leipzig with the city centre and developed the strategy further by issuing a "Masterplan Parkbogen Ost" as the base for a step-wise implementation of the project in 2013 (Ref. 5).
Rewetting Fairham Brook Nature Reserve
“Nottinghamshire Wildlife Trust (NWT) in partnership with Nottingham City Council (NCC) proposed enhancements to the Fairham Brook nature reserve to allow areas to be re-wetted, restoring areas to their former state. The Fairham Brook watercourse within the reserve was deepened in the 1970s to improve its drainage function for the adjoining agricultural land but it had the effect of draining the reserve also, which is one of the few areas of fen habitat remaining in Nottinghamshire. Fen is a Nottinghamshire Biodiversity Action Plan priority habitat and all efforts were to be made to protect and restore the areas that are remaining. Lowland Fen was also a UK Biodiversity Action Plan priority habitat (ref. 1).
Social and Community Garden Sadoveanu
Located in the backyard of a memorial house, this NBS was created with 2 purposes in mind: to offer a green oasis to the inhabitants of Iasi but also to educate them since the garden itself relies on volunteers primarily who have the opportunity to come and work in the garden, assist in the process of growing food and learn how to lead a healthy life. In a way, this garden is seen as an escape from city life and it combines education with practical skills and community cohesion (1)
Water Management, Hanover-Kronsberg
Kronsberg was built as a model district of sustainable urban development for the EXPO 2000, which motto was 'Humankind-Nature-Technology'. In the previously intensively farmed area, 3200 new dwelling unit was built. Among other sustainable technologies, the planners of the district developed a quasi-natural drainage system that aimed to provide the municipalities a sustainable alternative for traditional drainage (Reference 1, 2).
20 years after planning started in 1992, EXPO district of Kronsberg has proven its viability in terms of sustainable urban development and provided important foundations for advanced urban planning of new buildings in Hannover and elsewhere. The project was showcased in the ‘Crystal’ exhibition pavilion in London as a global standard for integrated construction. The ‘World Cities Summit 2012’ in Singapore also paid tribute to the residential area as one of the world’s hundred most innovative infrastructure projects (Reference 1, 2013).
20 years after planning started in 1992, EXPO district of Kronsberg has proven its viability in terms of sustainable urban development and provided important foundations for advanced urban planning of new buildings in Hannover and elsewhere. The project was showcased in the ‘Crystal’ exhibition pavilion in London as a global standard for integrated construction. The ‘World Cities Summit 2012’ in Singapore also paid tribute to the residential area as one of the world’s hundred most innovative infrastructure projects (Reference 1, 2013).
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).
Huveaune riverbanks: Rehabilitation and Development
In 2010, rehabilitation works on the Huveaune riverbanks, in the city of Marseille, were carried out by volunteers from three associations: Rives & Cultures, Planète Sciences Méditerranée, and Hunamar. Work included clearing, revegetation, and maintenance of riverbanks (Ref. 1). Since this initiative took place, the l'Huveaune Watershed Union has been formed and taken steps to formalize the rehabilitation of the Huveaune riverbanks (Ref. 2, 3, and 4).
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).
Restoration of the Emscher River
The river Emscher is the symbol of one of the internationally most renowned industrial regions: the Ruhr area with its 5 million inhabitants and an important location of key industries such as steel, chemical, and materials industry. The revitalisation of the Emscher over the last 20 years marks a new phase in the region‘s history and is an impressive example of ecological and socio-economic transformation affecting all aspects of life along the river (Ref. 1).
Kletterfix - Green Walls for Leipzig
Together with the Office for Urban Greenery and Waters of the City of Leipzig, the charitable association Ökolöwe Leipzig started the green facades initiative "Kletterfix - Green Walls for Leipzig" in 2015. The project aims at creating awareness about the multiple benefits of urban green walls and inspiring action of tenants and landlords on private property. As a measure mandated by the Urban Clean Air Plan, green facades improve the urban microclimate, general living conditions and combat particulate matter pollution. On-site advice about suitable plants and maintenance is provided upon application and respective seeds for up to 5 plants are sent for free to the applicants by the city department (1, 3, 7).
Reconstruction of park Raycho Kirkov
The park was completely renovated by planting trees, shrubs, flowers, and by renovating existing grey elements and adding new ones. The project was implemented as part of the programme for Improvement of the Ecological and Recreational environment of Plovdiv, which was funded by the ERDF through the national Operational Programme “Regional Development” 2007-2013 (Ref. 1; Ref. 2; Ref. 3; Ref. 6).

