Environmental quality

Hellenikon Metropolitan Park will be a large urban park located in Hellinikon, Athens, Greece. The park will be the central attraction of the Hellinikon project. It will provide Athens with a much needed ecological boost. When finished the park will be the largest in Europe. It will be approximately 200 hectares spanning the site of the former Hellenikon International Airport (Ref 4). The project will follow an integrated approach to sustainability. The objective is to boost greenery and create high-quality spaces while minimizing the natural resources used, protecting and enhancing the ecosystems in the region, and also raising awareness and educating the public on sustainability issues (Ref 1). Initially, the project was planned to start in 2008 and to be completed by 2013, but with the unfortunate and unseeing financial crisis worldwide, was shelved. A part of the project has been completed in the first 5 years. In 2013, a new design strategy for the project was submitted as part of The Hellinikon Project. The team included Foster & Partners, Charles Anderson Landscape Architecture, ARUP and a group of Greek design consultants. The design was revised and resubmitted to the Greek government in 2018 (Ref 3). The project is now under the consideration of the Greek Ministry of Culture for infrastructure and monuments (Ref 1).

Collaboration between the City of Aarhus and private property developer DOMIS Ejendomme has been recognised by the award of a silver certificate for sustainable urban planning for the Bryggervej project. The aim of the project is to try out various sustainability principles. Green and blue solutions are included in the project, e.g. green roofs, green facades, green open spaces and blue elements/water in the park areas to increase recreational values and add moisture to the dry urban air. (Ref. 1, 2, 3)
By 2020, the first residential project was built called Risskov Brynet (Ref 8). Information in the project since 2017 is about this project. The project is certified according to DGNB Gold because it is based on a high standard for both social, economic, and environmental sustainability. An important part of this project is a 'highly insulated climate screen', a technology of the project that is incorporated into the project to address climate change (Ref 8, 9, 10).

"The main idea of the project is to join the two parks at the end of the intervention (Pedion Areos and Lofos Likavitou) with a green mass that will flow all along the intervention, bringing back the greenery to an area that used to be a green zone in the outside of the old Athens walls.That green corridor is formed by: (1) the existing trees preserved; (2) the new trees added; (3) a continuous floor all along the project with a pattern that is an abstraction from olive tree branches; (4) The artificial activity/bioclimatic trees they create" (Ref 1).

The Community Supported Agriculture initiative in Bonn (SoLaWi Bonn) is an economically motivated arrangement between consumers, farm businesses and certified gardeners to improve the urban provision of local, organic food. Together they develop a concept for collaboration where the consumer group commits to pay an annual fee to cover all of the farmer's expenses for production (according to individual financial capabilities) and to work placements at the farm per year. In exchange, the customer members of the initiative receive a variety of fresh, seasonal, locally produced vegetables. The farmers profit from financial security and economic stability and the ability to apply environmental friendly agriculture practices without the pressure of the market economy (1,4).

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)

A significant expansion of the summer water level in the biggest local natural river, Giber River, was carried out in Aarhus. The increase in water flow in Giber River was achieved by a range of different measures, such as pumping purified wastewater into the river and building a string of rainwater collection ponds that will be allowed to slowly drain into the river. (Ref. 1)

“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).