Environmental quality

The once rich in fish Nidda river in the north of Frankfurt was canalized and dammed in the 20th century. River loops were pierced, filled in or made into oxbow lakes. Newly built weirs stopped the fish migration. The expansion provided good protection against flooding, but the river became a canal (2).
In the 1990s, the Nidda neighbours developed a program for the renaturation of the river, the concept "Natural Nidda". It was decided by the city council of Frankfurt am Main in 1998 (2). The project consisted of many measures aiming at the restoration of the natural course and ecosystem of the Nidda river, the creation new habitats for flora and fauna, the expansion of the floodplain area and thus the river's retention capacity, the deconstruction of weirs, the renovation and building of bridges and the reconnection of disconnected branches of Nidda. Besides the environmental aspects, another project goal was to make the riverside more accessible for local offering various ways for relaxation and recreation. (2,7)

The green wall outside of the garden section of Leroy Merlin in Zlotniki near Poznan. First of such projects in a shopping mall in Poland which was designed already at the planning stages of the building infrastructure. It serves both ecological and marketing purposes [1,2].

The major objective of the project is the ecological recovery of five of the most important lakes of Bucharest in order to strengthen its tourist potential and attract new investments and tourists. The following lakes went under construction: Băneasa, Herăstrău, Floreasca, Tei, Pantelimon II. (1)

A nature park in Bucharest containing the wetlands surrounding Lake Vacaresti. It was initially a swamp drained by the communist regime, which builds a complex of apartment blocks. In 2014 it was declared protected by the Romanian Government and named Văcărești Nature Park, and was approved as a natural protected area in 2016. (1)

The NBS is a building of offices which includes vertical gardens. The building brings a unique "green urban concept" into the local market, reflected in the vertical garden and the courtyard, creating a natural, vast outdoor image and a "harmony with nature" environment on each floor. Linked gardens provide a space that will allow employees working in Green Gate to relax and socialize. (1)

A 1.96-hectare insidious unused land in the District 2 of Bucharest has been transformed into a modern park through a project funded by European funds. The project was selected in the top 100 Regional as an example of good European practice.Initially, the park was a storage space for household waste (1, 3).

A vegetable garden located on the property of an elementary school, allowing children to grow their own vegetables, minimizing the lunch costs for the school's management and bringing together parents, children and volunteers in creating a space for learning, relaxation and community all under the umbrella of environmental protection (1).

The first shopping center in Romania which has a green roof installed aiming at increasing environmental awareness among its consumers but also including a green space in an area surrounded by building blocks. (1)

A community garden at the margins of Bucharest, which aims to serve both locals and tourists, and the only place of its kind for the 240.000 inhabitants of the quarter. Apart from its educational aspects, the garden is a living workshop and a place of relaxation for its visitors (1).

The aim of the project was to protect and enhance the areas of core nature conservation interest and adopt environmental management principles to help reduce the impact of management operations on the environment. Linn park and Local Nature Reserve (LNR) is the second-largest park in the city. Linn Park comprises a mosaic of riparian woodland along the White Cart corridor principally broadleaf in character, mixed woodland plantation blocks connected by a series of mixed-species shelterbelts, scrub, meadow, amenity grassland, and parkland trees. The woodland provides habitat for a great variety and number of birds both resident and migratory. Some areas of the woodland have good ground flora diversity including the occurrence of Bluebells (Hyacinthoides non-scripta) in patches.
The park is particularly of note for its floristic and bird diversity with some 250 and 60 species recorded respectively. Some animals and plants of interest include Atlantic Salmon (Salmo salar), Otter (Lutra lutra) and Kingfisher (Alcedo atthis) and Great-spotted Woodpecker (Dendrocopos major) and Toothwort (Lathraea squamaria) in the woodlands. It is scarce in Scotland and Linn Park and is one of only 3 sites in Glasgow this species is found (Ref 4). Linn Park and Local Nature Reserve (LNR) was awarded a Green Flag in 2013. The Green Flag Award is the benchmark national standard for quality parks and green spaces (Ref. 3).