Enhanced carbon sequestration

The data centre for Citi Bank in Frankfurt is the first in the world to put sustainability at its heart, setting radical new standards in an industry at the forefront of the fight against global carbon emissions (1). The functional and aesthetic aspects, as well as their CO2 balance and later reusability, played a decisive role in the selection of all materials. Disguising the full volume of the data hall, the iconic green wall features indigenous plants and is fully irrigated by harvested rainwater. The wall, measuring some 55 m by 12 m high, complements the extensive green roof and helps maintain a constant building temperature throughout the year while reducing thermal gain in the summer months. (1)

The Edinburgh Living Landscape (ELL) is a partnership between the Scottish Wildlife Trust, the City of Edinburgh Council, Edinburgh and Lothians Greenspace Trust (EGLT), the Royal Botanic Garden Edinburgh, Green Surge and Edinburgh University, it aims to help make Edinburgh a city fit for the future by fashioning healthy and beautiful environments that are resilient to climate change as well as being highly valued and accessible to people. It is made up of a range of projects that will create, restore and connect green areas of the city to make attractive and biodiverse landscapes that are enjoyed by residents and visitors. One of the examples is the Holyrood park. Naturalisation was tested in Holyrood Park, where a once regularly mown grassland is now cut only once per year. It benefits both wildlife and public amenity and also reduces maintenance costs for the site, with the potential to spend elsewhere on greenspace maintenance. This is a part of the ongoing Edinburgh Living Landscape Case Study which aims to make Edinburgh a city with healthy and beautiful environments, resilient to climate change. A range of similar projects will create, restore and connect green areas of the city to make an attractive and biodiverse landscape (ref 2, 3).

The project, concerning the installation of an experimental site for research and demonstration on the environmental benefits of the green roof in urban areas, arises from the need of the public administrations, and in particular the City of Genoa, to get a thorough technical knowledge in order to make urban planning tools more effective in the process of improving life quality in the urban environment (1).

The green wall was built as a pilot project in cooperation between the national government, the University of Genova and the Ecosystemic Research Group with the aim to assess urban air pollution. The wall is being monitored to understand which plant species are the most ideal for carbon sequestration in cities (2 and 3).

Craigmillar Town Centre Temporary Greening project transformed a vacant development site in Craigmillar which is reserved for a new high school, not scheduled to be built until late 2020, into a temporary green space. The site is at the centre of the wider Craigmillar regeneration area, adjacent to the newly-built Community Hub and neighbouring plots at varying stages of development. EDI's PARC Craigmillar Ltd is responsible for the regeneration in Craigmilar, working in partnership with Edinburgh & Lothians Greenspace Trust (ELGT) and the City of Edinburgh Council. The initiative will create a meanwhile space for community use, while works begin on the town centre development. The greening will allow the area to become an active space for the local community to enjoy and ease the construction process. Craigmillar Town Centre Temporary Greening forms part of a wider plan for the redevelopment of Craigmillar Town Centre. The masterplan, which was approved in December 2014, includes 330 homes, a retail centre, restaurant, community play area and high school – where the temporary greenspace will be situated until building commences. (ref 1, 3)

“Zagreb for Me” was an ambitious and comprehensive project launched in 2015 by the Zagreb Society of
Architects in cooperation with the Faculty of Architecture at the University of Zagreb and the City of Zagreb.
The goal of the project was to start a revitalization of public spaces through the realization of 17 urban
interventions in the whole city area at the same time. This distributed approach aimed to improve the general
“image of the city” and raise the quality of urban life in segments of housing, recreation, leisure and social
cohesion and revitalization of Zagreb's public spaces using public participation as a tool. This project aims to decentralize designed public spaces and draw attention to some forgotten city spots. At the same time, the project, created from a “bottom-up” initiative, establishes a new model of public participation as well as new forms of collaboration (Ref 1, 2, 3). The project "Zagreb for me" was created on the basis of Acupuncture of the city - an interdisciplinary approach and public participation, but it covers a wider urban space, ie it deals with public spaces throughout Zagreb. After the conducted urban-architectural tenders for the selected solutions, the realization is planned. Only one urban-architectural tender was conducted and the implementation of the project stopped there, but the project "Zagreb for me" was recognized as an example of good practice with the possibility of application in other cities. (Ref 5)

The petrol station is a result of a long-term project of MOL, called as the “The petrol station of the future”. The designers created a building with excellent thermal insulation, green walls, a green roof, solar panels, rainwater utilization and an alternative heating system. Even the interior of the building was created with as much environmentally friendly materials as possible. The building uses LED lighting only to save energy. These environmental efforts resulted in Energy savings of more than 50 percent, and the neutralization of 10 tons of CO2 gas emissions. (Reference 1)

The park of "Bois d'Avaize", with an area of 30 ha, is located south-east of Saint-Étienne on a hill site between 540 and 640 m altitude. A former mining site, operated from the 15th century until 1931, it was gradually reclaimed by vegetation before being converted into a municipal park in 1996 (Ref. 1). In 2016, the site was selected for the development of a project to enhance biodiversity by creating of a conservatory orchard, increasing amphibian-friendly habitats (with creation of ponds), and improving the connection of the park with the Pilat massif (a mountainous area) (Ref. 1). It is classified with the label "Natura 2000" for the conservation of natural environments for the richness of its fauna and flora (Ref. 1). Work was undertaken between 2017-2018 with management and monitoring set to occur from 2018-2050 (Ref. 1).

The University of Sheffield has embraced green roof technology for its benefits to the built environment, and to support Sheffield City Council vision of Sheffield as the UK’s green roof capital. Most buildings the University feature intentionally vegetated green roofs and some existing buildings with suitable structures have been retrofitted with green roofs (ref 1). The first instrumented test plot for the green roof was installed on the Mappin Building roof. In 2009, Jessop West building and the Robert Hadfield – Green Roof Centre Demonstration Site are studied for replicating the model (ref 4).

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).