Public local authority budget

'Blok 54' is a new building on the city island IJburg in Amsterdam, on which a green roof and rain garden were be created in which stormwater can flow from the green roof through a groove with diverse vegetation, reflecting a natural creek. The vegetation with fruit bushes serves as a sensory garden for poly handicapped children and the creek flows into bioswales through which can slowly infiltrate. Blok 54 can thereby be considered an ECOcity-garden. (1,3)

The project seeks to plant a 300 square meters flower meadow in the Lublin city centre, in an area between two busy roads. The field would increase biodiversity in the urban ecosystem, function as a habitat for the pollinators, produce oxygen, absorb pollution and serve an aesthetic purpose.
As one of the first initiatives of this type in Lublin, the project would be monitored on an on-going basis. It serves as a pilot study for the following projects alike [1,2].

Grangetown is the site for a flagship environmental programme to tackle flood risk and water waste (ref 5). This scheme catches, cleans and diverts rainwater directly into the River Taff instead of pumping it over 8 kilometres to the sea. It will make Grangetown a greener, cleaner place and enhance local biodiversity (ref 2). Every year more than 40,000m³ of rainwater is diverted from entering the combined sewer network (ref 1). Interventions include planters, swales, bio-retention ponds, permeable paving and curb drainage, making use of the existing streetscape. 108 rain gardens have been created, and 130 trees have been planted; the area has been deemed the 1st "bicycle street" in Wales (ref 8). Wider benefits include education, health, well-being (ref 1).

As a consequence of the rehabilitation of a highway that connects Craiova to Bucuresti, the municipality of Craiova implemented ecological parking spaces in the areas that went alongside this road. It was a much-needed solution in a city that lacks in green spaces. The first experimental parking space was implemented in 2008. Most of the parking spaces are located near building blocks (1).

The Tineretului Park is a special vegetation and touristic area, a forest park stretched over an area of ​​over 60 hectares, on the left bank of the Jiu River. It was rehabilitated in 2009 by the municipality and it is the second-largest park in the city. Before its rehabilitation, it was seen as a dangerous area, high in petty crimes. Its rehabilitation was also much needed since Craiova is one of the Romanian cities with the lowest number of green spaces (1,2) .

At the primary school Laterna Magica, a green rainproof playground was created that is effective in stormwater retention, reduces soil erosion, supports biodiversity and provides education possibilities for the children. The playground consists of bioswales, terraces, diverse and pollen-rich vegetation and a vegetable garden. (1,2)

The Garden Janine (formerly called Jardin Nouveau) group is participating in the "Aix en Transition" initiative, which wants to increase food and energy resilience in order to better prepare for the future. This group initiated and supported the establishment of a vegetable garden benefiting homeless people, hosted in the Humanitarian Division of the "Jas de Bouffan" district (Ref. 1). A garden was previously cultivated on the area, but had become dilapidated. In 2019, much of the area was repurposed as an orchard as the vegetable garden was deemed to require too much continual presence/labour (Ref. 6).

The green initiative 'Oost Indisch Groen' (East Indian Green) is a citizen initiative to make the neighbourhood more sustainable, fun and healthy by means of active citizenship. The key NBS initiative is the neighbourhood garden ('Buurttuin Oost Indisch Groen') in which vegetables are grown with a community kitchen that supports social cohesion and that also gives space for an educational workshop on gardening and sustainability-related topics (1, 6,7)

The Aa promenade, created in 1950 to provide the citizens of Muenster with a green experience trail in the inner city, was redeveloped in the 90s with several planting measures on riverbanks, walls and in adjacent areas. Next to a brochure, a nature trail which combines the existing recreational with an educational component was created with 18 site-specific signposting points. They cover multiple benefits and ecological functions of urban green spaces, city trees and green facades/walls (microclimate regulation, air quality, CO2 capture), anthropogenic threats, unknown biodiversity hotspots and natural monuments (Ref. 1, 3 and 6).

The Green Ventilation Corridors network in Stuttgart, Germany is an implemented nature-based solution coupled with regulatory policies and incentives. Within this initiative, Green ventilation corridors were created to enable fresh air to sweep down from hills surrounding the city (4).