Climate change

“An integrated solution for groundwater, rainwater, waste water, streams and ponds creates attractive housing in a new suburb (NyE), with room for exciting architecture. The water cycle plays a key role in urban development in Denmark, and water is one of the ever-present elements in our lives. Århus needs to prevent flooding caused by climate change, avoid polluting our groundwater, and improve the environment in streams and ponds to allow the use of water to create recreational value for the residents. This way, Århus can build a balanced aquatic environment, which will ultimately create a better city.” (Ref. 1)

The establishment of the first stage consisting of 650 homes, day care center and grocery store was initiated in the autumn of 2016 after more than 10 years of planning, and in the summer of 2018, the first residents moved into Nye. More homes are on the way. (Ref 14). In its current form of just over 150 ha, it has a capacity of approx. 15,000-20,000 inhabitants or approx. 10,000 homes at full expansion (Ref 15)

Athens' first vertical garden has been installed temporarily at the entrance to the City of Athens administrative building at 22 Liossion St during the city's first green cultural festival, the Green Design Festival in 2008. Such gardens have a positive impact on the environment as the plants trap carbon dioxide, produce oxygen, absorb harmful atmospheric pollution and reduce air temperature in summer, which assists in cooling the building's interior (Ref 1).

The botanical garden of Athens was reconstructed in 2004 to protect and maintain the biodiversity of the area. Covering a land of 1,860 sq.m., this Botanical Garden hosts over 2,500 different kinds of plants from all over the world and a rich variety of flora. All the plants and trees are protected in the park. The community also sends seeds all over the country to spread and maintain biodiversity throughout the region and hold agroecological events to increase the concern and educate the locals (Ref 1,3). The park also has a lake and a library inside it. (Ref 2)

The garden was established in 2012 by self-management of the community of Exarcheia. The site is a former parking lot in public land, historically reclaimed by the neighbourhood as a green zone. People occupied the space, designed the park, and constructed it. The former parking lot was owned by the Technical Chamber of Greece (TCG). A weekly assembly manages the site and activities. The aim of the community garden is formative, to show how to grow food, reproduce and collect seeds. The park has encompassed multiple functions in addition to community food-producing garden, such as children's playground, a place for cultural events, gathering and emancipation (Ref 1, 2, 3).

A restructuring of the National Park of Athens is being done from the last few years to revitalize one of the tourists' attractions in the city. The restructuring is mainly focused on the conservation of animal species found in the park. The project also aims to transform the park into a meeting point for culture and sports as well as activities including workshops, yoga, pilates, music, theater, tours and educational games for kids (Ref 7). The park contains a duck pond and a small zoo. In addition to this, it opened a botanical museum and a library for children for educational purposes (Ref 1,2,3). The project was planned to carry out in two stages. In the first stage, Athens will tender a 2.9 million euros upgrade of the infrastructures, and a study that is budgeted at 370,000 euros for the restoration of the Garden’s zoological park, botanical museum, the famed Roman mosaic area, and restoration of the Herod Atticus wall. The second stage concerns restoration of the Garden’s flora and removal of damaged shrubbery (Ref 6).

The intervention included the renovation of lake Jarun and its surrounded park and recreational centre. Efforts were made to improve the amenities at the lake and park in order to bring it closer to the citizens, particularly to disadvantaged groups. It provides facilities for walking, bicycling, various outdoor sports, trim-track of 6500 meters of length, roller skating, etc. Sports facilities are related to an impressive 2250 meters long regatta path where international and world rowing, canoe and kayak contests are held. With daily training and performances, they give Jarun a special, sporting atmosphere (Ref 1, 2, 3, 4).

The project was about restoration of the Aarhus river. The river was piped during the 1930s for hygienic reasons and to give space for road infrastructure. In 1989, the city decided to resurface the river. The river acts as a green and blue corridor running through the city centre. Furthermore, The City Council approved a plan for the recreational vision of the Aarhus River and e.g. flood prevention measures have been taken. (Ref. 1, 2, 3) The Aarhus Å project was completed in the years from 2006 to 2013. (Ref. 15)

Since it's founding in 2005, the association "Ermekeilinitiative e. V." has been aiming at the transformation of the Ermekeil quarter, a former military base to a communal, generation-wide and intercultural space with diverse ecological and sustainable use. Since the Federal Office for Defense Administration moved out in 2013, the territory was released for interim use. Together with residents and communities, the association turned the territory into a lively, green and mixed neighbourhood with several initiatives taking place in parallel. The community garden project was one of them (1).
The interim use of the area ended in 2016, some of the buildings of the former military base have been sold on the real estate market. This resulted in the termination of most of the Association's initiatives in the area including the removal of the 100 raised beds of the community garden. Parts of the community garden was relocated to a different part of the quarter, however, since 2018 there is no information on the current working and management of the community garden (2,6).

In 2009, the city of Montpellier launched a large census project to valorize its abandoned areas. The study gives guidance on the management of abandoned areas in Montpellier, particularly in connection with environmental education and awareness objectives (Ref. 2). The strategy aims to preserve and promote the natural heritage of Montpellier; promote wastelands as reservoirs of biodiversity, tools for connecting natural spaces; protect and enhance the great green flows accompanying watercourses (biological links and privileged sites for fauna and flora); and develop a network of soft transport throughout the city based on the green network (rivers, agricultural, natural and park areas) (Ref. 4). "The spaces have been classified according to their context, their origin, their potential. This sometimes subjective typology presents a classification of the wasteland and makes it possible to take a particular look on each land. Surfaces of all shapes and sizes fall within this operational classification." Four Experimental projects include: Zenith Friche, Promenade of the Lironde, Pastourelle, Combemale" (Source: uploaded document).

The waste management company BiR built a new terminal with underground waste collection using suction techniques. In connection with this new establishment, a green wall and a green roof were installed by the landscaping company Wikholm. In 2015, the plant wall at Jekteviken Terminal was the largest green wall in Norway, covering 350m2 with its 17 000 plants. (Ref. 1) In addition to providing aesthetic value, the wall also insulates the building, cleanses the air, and binds dust. (Ref. 6) Irrigation of the wall is automatic, as the wall collects and stores rainwater and use it when needed. (Ref. 1)