Climate change adaptation

This NBS site is part of the Bratislava Zelenaj Project. This particular NBS involves the creation of vegetation on buildings as a means to mitigate the effects of climate change in cities due to urban overheating caused by global warming. It targets the residents of the Archa House of Seniors (Domove seniorov Archa) in Bratislava as part of the citywide project “Bratislava is preparing for climate change” with the aim of protecting and promoting the welfare of the city’s vulnerable citizens from climate change effects. The roof's main function is buffering the discharge of excess rainwater. (10)

The area was planned to be the Öresund Region's most climate-smart city district: an energy efficient, resource-saving and green district with a hundred percent renewable energy use.” (ref. 2). The area's development program focused on the ecological aspect of sustainability and took responsibility for that part of the city's sustainability work (ref. 7).

The Green and Blue Network in France is a national policy which "aims to restore ecological continuity in order to promote the migration of species and the resilience of ecosystems to face habitat threats and climate change. It also aims to strengthen the place of nature in the city and public awareness." In Montpellier, implementation of "this project has improved knowledge of the city's natural heritage and enhanced ecological continuity, as well as protecting, and sustainably managing high-potential sites and integrating the social dimension, raising public awareness, the observation of nature"(Ref. 2).

Bastion Theresia Timisoara was built as a defensive perimeter for the Romanian town of Timisoara and has languished for decades in the center of the city. The bastion was rehabilitated and it incorporates green spaces and a community center. The old fortress' location in the middle of town makes it a natural hub for transportation and assembly, and the extensive green roof incorporates it into the city's urban green belt. (1)

Ecological parks are parks that reduce stormwater runoff and pollutant emissions. It refers to a number of techniques applied at the same time to reduce the total impervious surface of a parking space, the decrease in the surface temperature and maintain a green island in crowded areas. In Timisoara, until the date of this completed intervention (2009), there were located 11 ecological parking spaces, placed throughout the city, most of them near building blocks in former industrial quarters (3)

The River Alt Restoration Project at Stonebridge started in 2013 with an initial goal to remove culverts in order to create re-naturalised watercourses and maintain watercourses easier. It also involved the removal of rubbish and other obstructions to reduce the risk of flooding in the wider catchment (Reference 2). The project then evolved with a bigger goal to divert River Alt into a new 900-meter long linear park named Alt Meadows. Relevant engineering works were employed in the area. In addition, accessible paths and meadow, wetland and woodland habitats were created. The park was also linked into surrounding areas (like housing, shops, schools, etc.). The project benefits include the expected increase in wildlife biodiversity and improved water quality and flood protection (Reference 1, 3).
The project was led The Cass Foundation, in partnership with the Community Forest Trust, with funding from DEFRA’s Catchment Restoration Fund (via Environmental Agency) and Liverpool City Council. The Foundation remains responsible for maintaining Alt Meadows on behalf of the city council (Reference 3).

Since 2012, Gothenburg has worked with the Rivercity, an urban development project in the city centre, that uses different ways of working, with innovation at the core of its urban transformations projects. Frihamnen is one of the RiverCity Göteborg most vital projects which aims to unify the centre of Göteborg across the river and out towards Kvillebäcken, Lindholmen and Backaplan (districts). The environmental goal is to create climate adaptation by flood control & stormwater management. Additional benefits of the project are to make the area more attractive and create recreational areas. As part of the BEGIN project, the Frihamnen project aims to use 'blue-green' solutions (i.e. Blue Green Infrastructure through Social Innovation). (Ref. 1, 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 restructuring of the main road Gran Via Fernando el Catolico has seen a rehabilitation of its green areas in two distinct plots: one occurring at its intersection with Calle Lagasca, and one at its intersection with Corona de Aragon. The intervention is connected to relieving the heat island effect that occurs in the city center, increase greenery with the planting of 114 new trees and making the main traffic artery more accessible and pleasant to pedestrians. (Ref. 1-5)

The Venice Lagoon is characterised by intensive agriculture and by a web of drainage channels discharging into the rivers. The Veneto Region, through the “Plan for diffuse pollution prevention and restoration of water in the draining basins of the Venice Lagoon” financed measures of re-calibration of riverbeds aimed at the renaturation of the hydraulic web, to increase the time of permanence of water and phytodepuration processes in the draining basin. This case study, in particular, includes measures on the drainage channels discharging into the Dese river, one of the main water bodies of the Venice Lagoon basin. In particular, it aimed at re-structuring the effluents of the mid-course of the Dese river (Rio S. Martino, Rio S. Ambrogio and Scolo Desolino). (1).