Collection of monitoring data continuously throughout the project to aid evaluation

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)

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)

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).

The Ville Forests covering the hills between Bonn and Cologne are an example of a rare and highly endangered forest habitat type in Europe giving a home for many threatened animal species (1). The protection and conservation of these 'oak-hornbeam forests on hydromorphic soils and the forest-dwelling species was the main objective of the Villewälder: LIFE+ Project for Kottenforst and Ville project which includes four Natura 2000 areas with 4.378 hectares of forest. The conservation measures of the project focused on water balance restoration, habitat improvement and preservation, and the extension and connection of protected areas (1,2).

The aim of Ljubljanica Connects funded by Life+ is to improve connectivity between Natura 2000 sites. Started in 2012, the project aims to remove barriers to fish migration, enhance and restore habitats, improve water management infrastructures, and put in place a water monitoring system. This will restore the river Ljubljanica's function as a corridor, improve water management and so provide better links between Natura 2000 sites. The fish species in question are Danube Roach, Danube Salmon and Striped Chub (2).

The first " ecological zone" in Ljubljana was established in 2007 in the old city centre. This led to the closure of a 100,000 m² area to motor vehicles, and the renovation of the main traffic axis to make it attractive for pedestrians and cyclists. The new transport regime in this area reduced black carbon levels by 58%. Additionally, the city administration has planted 63 ash trees. Biking and sustainable mobility have been promoted, in line with providing new green areas for social and sporting activities in formerly degraded areas. The "renaissance“ is not focused only on the city center and the implementation of the car-free zone, but it is expanded throughout Ljubljana and covers different fields, such as the revival of degraded areas, the establishment of green public spaces, playgrounds for children, eco-renovation of schools and kindergartens, cultural and sports facilities, etc. Finally, the river Ljubljanica has been the focus of an ecological restoration project. This was done with the aim of reducing pollution and returning the city centre to the citizens, by incentivizing pedestrian and bicycle commute. The "ecological zone" project has been completed. After the completion of the project, further initiatives were taken which is directly related to the project itself. Some of them focusing on converting the city to a sustainable one is still going on. (1, 3, 4 and 8).

The project LIFE SeResto (LIFE12 NAT/IT/000331) aimed to trigger a process of aquatic recolonisation in “Northern Lagoon of Venice”, mainly through the transplantation of "Zostera marina" and "Zostera noltei" to small sites distributed throughout the area. The proposed intervention technique involved transplanting a small number of plants, with advantages in terms of lower costs and impact on the donor sites (1).

San Giuliano Park, inaugurated in May 2004, was designed by Arch. Antonio Di Mambro of the Comunitas Group. The first two lots have been implemented for a total area of about 74 hectares, including green areas and recreational infrastructure. The creation of this park is one of the biggest re-qualification initiatives in the national territory. With the implementation of the park, the area of Punta San Giuliano, used for years as a landfill of industrial and urban waste, definitively loses its barrier function between Mestre and its lagoon and returns to the natural state of the ancient city (1).

On a yearly basis, the city of Zagreb, Zagrebački holding plants new trees and bushes to maintain Zagreb as a green city with 114 hectares of green spaces (Ref 2). Also includes maintenance of green surfaces, such as grass in public parks along with tram tracks and planting new trees and maintaining existing ones next to kindergartens and schools (Ref 2). Maintenance of city parks, lawns and tree lines includes cleaning, mowing and collecting grass and garbage from green areas, restoration of trampled lawns, maintenance and pruning of trees, shrubs and hedges, maintenance and care of seasonal and permanent flower beds, maintenance of paved and dune areas in parks and installation and maintenance of urban equipment in parks and children's playgrounds (Ref 1).

2017 Green and Grand City is part of Göteborg's 400th anniversary (in 2021), and plans are developed up to the anniversary on a yearly basis. In 2017, the focus was on a greener and grander Göteborg. The vision for 2021 includes three themes, water, building bridges (reduces divides between people) and open spaces. The anniversary efforts build on three elements of sustainability; social, ecological and economic. (Ref. 1)