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As a solution to the increasing population, pollution and high energy consumption, the municipal government of Shiraz has launched the Green City project in 2008. The main aim of this initiative is to reforest the city's periphery and encourage citizens to plant gardens on rooftops and the private sectors to adhere to the city’s development plan with all construction projects. [1]

The Gangxia 1980 green roof, a pilot of the Green Cloud project, was launched by The Nature Conservancy (TNC) in collaboration with key partners, including: Zhubo-AAO; Glocal Estate Management; and Urban Planning & Design Institute of Shenzhen (UPDIS) [1]. Located on an old building in Gangxia village in Shenzhen, the project utilizes three-dimensional light steel structures that are simple to construct and have the capacity to hold over 420 plant containers, filled with plants mostly native to Southern China [1, 2]. The original concrete rooftop is transformed by vegetation, which is capable of absorbing and preserving rainwater, creating a nature-based stormwater management system for the residential building, achieving a 65% of run-off control rate [1, 2]. As a result, a living “green cloud” is formed on a rooftop of Gangxia village, showcasing “a model to improve the urban village’s stormwater management system and its living environment” [1. p.33].

Instead of expanding the Ring of Antwerp to improve mobility, the municipality of Antwerp decided to use the space to create a Green Ring of 13 kilometers consisting of a wide range of projects (Ref. 3). This large city plan contains green spaces along the Ring, green corridors between those green spaces and with existing parks, a new green park, neighborhood green spaces, restoring the historical city wall and so on (Ref. 3). The plan also contains measures to improve water storing capacity (Ref. 4).

This project was implemented on the rooftop of a ten-floor building with a floor space of 1.4 hectares, with the implementation of a green roof of 650m2. The motivation behind this was to study the thermodynamic impact of a green roof in hot Athens. Results concluded that the greenroof significantly affected the thermal performance of the building. Energy savings of 50% were observed for air conditioning on the floor directly below the installation. In addition to the energy-saving benefits, the study also found increased biodiversity in the area. A plethora of birds and beneficial insects were observed on the roof, ranging from robin redbreasts, yellowhammers, yellow tits, coal tits, and sparrows to kestrels hovering high above eyeing up the smaller birds. Other species such as honey bees, tiger swallowtail, monarch butterflies, dragonflies and ladybugs were also seen (Ref 1). The study suggested in improved micro-climate and biodiversity of the constitution square (Ref 1, 6, 7).

The Leeds RERF (Recycling and Energy Recovery facility) is the flagship development at the heart of Leeds Integrated Waste Strategy over the next 25 years. Amidst the timber frame on the buildings southern face there's a green ‘living’ wall creating a visually stunning feature in stark contrast to the building’s industrial use. The feature connects to a green roof and softens the building’s visual impact and provide vital bio-diversity to the site and surrounding industrial area. (1, 6)

There are various projects under the Den Grønne Kile initiative or the Green Wedge. The Green Wedge passes through all 4 subdivisions of the new district Aarhus K, and has a building percentage of 25% within the boundaries of the "wedge". (Ref. 3) Citizens are invited to contribute with green projects through the municipal innovation project "Green Citizen" (Grøn Medborger). (Ref. 1) The first and most prominent is a park created by citizens on an old railway track. The park has the nickname 'Kilen' and is a new city park for everyone, including upcoming residents and companies in the new district 'Aarhus K'. The park helps to promote the creative energy in the area and is in line with the development of the new district; it differs from the other city parks in Aarhus by offering space for many different activities and temporary projects that give life to 'Kilen' and make the trip along the railway track an exciting experience. (Ref. 1)

In September 2011, a new eco-friendly student village ‘The Green’ opened to students at the University of Bradford. The new eco-village "The Green" has been designed to incorporate a range of features to enable students to live in a more sustainable way. It is part of a broader sustainability initiative by the University of Bradford called 'ecoversity' and its development is clustered around a pond, which is a part of a sustainable urban drainage system (SUDs). The Urban Pond/biodiversity pond – at The Green increases the biodiversity of the site. The site has been designed and landscaped with nature in mind, consisting of grassed areas, a wildflower border, shrubberies and native trees. (ref 3) The £30.4million development was the first multi-residential building in the UK - and one of only 15 buildings worldwide (ref 7).

In order to promote Urban and Periurban Agriculture and Forestry (UPAF) as a municipal strategy to deal with negative climate change effects, Bobo-Dioulasso local authorities have identified, using a participatory approach, city greenways as experimentation sites for local climate solutions. The intervention consists in transforming vacant land belonging to the city into green corridors (greenways) through market gardens and forestry, retaining the benefits of urban agriculture. Urban agriculture, when planned and managed properly, can contribute to climate change mitigation efforts by lowering the ecological footprint associated with food production. At the same time, urban agriculture can enhance climate change adaptation efforts by increasing vegetation cover and reducing surface water run-off, while at the same time conserving biodiversity. (1,2,3,4)

Haukåsvassdraget is a vulnerable watercourse threatened by urban development and water run-offs from agriculture. The intervention included local use of surface water based on principles such as retention and infiltration, retaining and using the natural watercourses. The plan involved restoring the meandering river courses, ponds and pools and safeguarding the rich biodiversity and the landscape qualities linked to the Haukås watercourse and adjacent marshlands. The Haukås marshland park, combined with modern local handling of surface water, aims to prevent flooding in the development areas at Haukås and to improve the aesthetics of the area. (Ref. 1)

“The Hub, a new purpose-built student building (at the heart of the Coventry University campus) was designed to enhance the student experience, i.e. offers space to meet up with friends or study informally.” The building also includes a number of green credentials such as: ground source cooling from a borehole on-site; natural ventilation; grey water harvesting (rain water for the toilets); solar water heating and a green roof.” (Ref. 1)