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The lagoon has a great local significance for its biodiversity with the presence of certain species of rare birds regularly stationed in this area. Much of the biotope was degraded in the last decade by systematic embankments, constructions, as well as the inconvenience caused by various man-made pressures. A project was developed to reconstruct the area within the framework of a collaboration of the Institute of Marine Biological Resources, Inland Waters of HCMR, and Hellenic Ornology Company. The project offers directions for completing a protected region and proposes specific projects and actions of scientific monitoring, ecological rehabilitation, regeneration, and promotion. (Ref 3)

The Agenda working group called "Natural gardens in Wachtberg" aims at the development and promotion of nature-based construction solutions and increased use of local wild plants since 1998. In this pursuit, it managed to acquire land (400 sqm) from the municipality of Berkum and, transform the lawn area into a near-natural garden showcasing nature-based gardening elements with the help of other environmental associations and sponsors (1,2,7). Apart from securing and enhancing local biodiversity, the garden serves as a display of possible elements and solutions of a nature-based garden for interested parties. Moreover, through information boards, workshops and a detailed brochure on implementation guidelines, the project can spark interest and empower local residents to implement such nature-based elements in their own garden (1, 3, 4,7).

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)

Restructuring a public derelict land into few private vegetable and fruit gardens. The gardeners practice organic gardening making it more sustainable. This provides foods as well as increasing the soil fertility, and reduction of the soil erosion. This also creates some extra vegetable and fruit market in the city. 20 % of the food produced is donated to the food bank. The project is a community project which also helps to bring people together. Started in April 2012 (Ref 1,4). The project is one of the initiatives by the Greek municipalities allotting land to local citizens with the purpose of increasing food security for the underprivileged, educating the younger generation, and providing their citizens with a retreat from city life (Ref 3).

The project primarily aimed to replace the largely underused 2-hectare public green space, Chavasse Park by creating a new public park that forms the centrepiece of the Liverpool One development.
The park, designed under the collaboration of BDP and Architect Pelli Clarke Pelli, was envisioned to become a green oasis within the city centre, with the ability to accommodate a lively programme of outdoor events (Reference 1). It comprises a ‘Grand Lawn’, richly planted terraced and walled gardens, sites for beautiful pavilion buildings, sheltered seating, trees, planting and multifunctional paving areas (Reference 2). Chavasse Park was awarded Green Flag status and is home to a nature trail and a unique species - Speckled Bush Cricket. The Park is home to more than 150 species of insects, birds and animals (Reference 4)

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).

In 2002, the facilities of the Bielefeld Botanic Garden was expanded with a small apiary for local bees. The apiary was opened on the 90th anniversary of the Botanical Garden and since then in its 5 beehives accommodate the bees living in the garden. The facility is a place for breeding of bees to support their pollination activities and thus their role in food production while the apiary also offers visitors the chance to get an insight into the life and work of a beehive. Through various environmental educational programs, visitors and school children can learn about the importance of bees and the process of honey making. Beekeeping stations were also installed in other surrounding areas such as cemeteries, old dumps, fenced rainwater retention basins. (1,2,3,4)

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).