CityTree
The Urban Ecology Agency of Oslo (Bymiljøetaten) installed two CityTrees in the city of Oslo to act as green lungs in the city and reduce air pollution. The two CityTrees were placed at the Solli plass by Sommerrogata and on Nordraaks plass, close to Slottsparken. The CityTree is an environmentally-friendly plant wall with benches. (Ref. 2) It is an invention of a German company, Green City Solutions, and acts both as an aesthetically attractive furniture for resting, while simultaneously combating air pollution in city centres. (Ref. 1)
Park Jose Antonio Labordeta
The Park Jose Antonio Labordeta is the most extensive park in all of Zaragoza, consisting of municipal nurseries, botanical gardens, and areas for leisure and recreation. (Ref. 4) From 2006 to 2007 a process of citizen participation was started to collect ideas for the improvement of the park on its 75th anniversary. (Ref. 1) In 2010, the City Council of Zaragoza developed a Master Plan to document these ideas and to guide future management of the park. (Ref. 1) The interventions in the Master Plan include landscape improvement, park management, agronomic improvements, among others. (Ref. 1)
Revitalization of Rakova Jelša
Revitalization of Rakova Jelša includes cleaning of the informal waste area and renovating it in a park which connects the city with the Marsh Landscape Park. In two phases, the park area was arranged together with the children's playground and the footbridge over Lahov graben. The possibility of regulated urban self-sufficient agriculture or gardens in the immediate vicinity of the city center means the added value of this area. (1)
Development of Public Orchard and Nectar Garden
As part of the title Green Capital of Europe, Ljubljana planted the first public orchard. The public orchard is open to citizens and visitors of the city, where fruits are available from mid-summer to late autumn. One part of the orchard includes a plantation of old varieties of apple, plum and pear, while the other includes trees species little known. The public orchard and nectar garden are intended for residents, passersby, volunteers, groups of pre-schoolers, families and educational organisations. The nectar garden is enriched by an innovative didactic adventure trail that winds around the nectar garden. Next to the nectar garden is a hotel for insects and bird feeder intended to promote biodiversity and raise awareness about nature conservation. Nearby is also a renovated playground for children. Three such orchards have been created in Rakovi jelši, Savski naselj and Puhtejeva ulica. The arrangement of the public orchard is one of the goals set in the environmental protection program for the City of Ljubljana 2014 - 2020. (1, 2 and 3)
Crayfish Action Sheffield Project
Two of Sheffield's rivers, the Limb Brook and the Porter Brook, have been identified as having strong populations of native white-clawed crayfish. The native crayfish is under pressure from the alien, invasive American signal crayfish and the crayfish plague. If no action is taken, the white-clawed crayfish populations in Sheffield could become extinct in a few years. Crayfish Action Sheffield aims to maintain and increase Sheffield’s native crayfish populations through habitat enhancement, public education and creation of bio-secure 'Ark' sites. It is a collaborative research project and Sheffield Crayfish Working Group’s members are from a range of conservation organizations. (ref3) The First time Crayfish Action plan was implemented in 2008-14 and after it ended in 2014, again the issue was looked in 2017. (ref 5)
Green Production - Growing jobs and food in the city
Göteborg is in need to strengthen the conditions for those who today, to a certain extent, rely on food production or farming. Also, the demand for locally produced and non-toxic food is increasing by Swedish consumers. Green Production aims to create opportunities for urban agriculture that is financially viable within and around the city. Green Production will build knowledge and conduct research by bringing together key stakeholders around a number of focus-projects within the area. Green Production aims to create opportunities for urban agriculture that is financially viable within and around the city. Green Production will build knowledge and conduct research by bringing together key stakeholders around a number of focus-projects within the area. The original idea regarding these focus-projects is that they either will be based in a specific spot and, for example, linking new technologies with new jobs, or involve a process where entrepreneurs meet landowners, consumers, wholesalers, etc. The goal of these focus-projects, in addition, to gather knowledge and create new contacts and networks, is that they may develop a number of innovative urban agriculture projects and business ideas in and around the city. (Ref. 1, 3, 4)
Benacantil vegetation restoration project
The action proposed by the Municipal Technical Service of Parks and Gardens at the Department of the Environment, aims at the regeneration of the forest with the repopulation of pines of different ages, to imitate a mountain in a natural state with the plantation of the Cartagena Cypress and Tetraclinex articulata, which has a good adaptation to the environment. Several plots (Plots 3, 5, 6, 8 and 12 of the project) have been repopulated with shrubs and trees such as cypress, esparto, rosemary, tomillos, lentiscos, tetraclinex and palmito, in the solana area, deciduous and riparian species, and to other silvicultural treatments, which increases the variety of existing vegetation. (Ref. 1) In addition, the project contemplates the construction of two viewpoints (Ref 1, 3). A new irrigation system is put in place for the re-use of water for sustainable use and water savings. (Ref. 7)
Wilderness corners
Recognizing that wilderness areas in cities are getting scarcer and neglected, the Biological Station Bonn Rhein-Erft conducted a city-wide project, in cooperation with the municipality of Bonn, funded by the Regional Rhineland Association, whose goal was to assess, map, evaluate and redevelop wilderness patches in Bonn. These contain roadside meadows, flower strips, hedges and small green patches growing on concrete walls or fences and pavement cracks. 10 of these "Wild corners" were designated as micro-wilderness areas, information signs were installed and an informative city walk conceptualized (1,4,10).
Revitalization of Sava river banks
The recreational and educational centre (RIC) area along the Sava river stretches from Tomačevo to Sneberje and totals 144,618 sqm. The area is intended for children, people with disabilities and other residents of the region, visitors and tourists. The intervention made this once degraded, illegal dumping area attractive for those seeking recreation, visitors and tourists, also in the evening as street lighting was installed along the path powered by photovoltaics. A large children's playground offers free socializing and children can develop their basic motor skills, which is exceptionally important in life's early years. (1)
Banks of the Ebro River
"After decades of abandonment and deterioration, Zaragoza took advantage of the opportunity of the Expo 2008, to form a new relationship with the Ebro River, transforming empty, inaccessible, degraded and unsafe banks into places of encounter and representation. Public works on the Ebro were designed as structures with various functions." (Ref.3)

