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In June 2012, the Vertical Plants at the Strasbourg National Institute of Applied Sciences (INSA) were installed by two second-year students. They along with faculty and students undertook a technical and regulatory feasibility study, before taking steps to mobilise local companies to meet the costs of the project (Ref. 1). The advantage is not only aesthetic, but the wall has thermal and acoustic properties, and serves as a refuge for biodiversity and is even capable of absorbing atmospheric pollution (Ref. 2).

The Ciric Entertainment Area is a bordering area of ​​the city, located 6 km away from the city center. Before the Second World War Ciric did not exist on the map, being a hollow valley without a forest. Nowadays, being arranged as a recreational site, Lake Ciric is surrounded by a beautiful forest. The rehabilitation aimed at creating easy access to the area, to include it in the functional green area of the city and to increase the quality of life for Iasi's inhabitants (1, 2).

The flower meadow was established in 2017 on the roof of Karcher company’s building in Kraków. It is a multiannual project. The meadow consists of herbs and flowers and it serves multiple purposes; provides the recreational space for workers, supports biodiversity and provides habitat for insects and birds, especially pollinators, and has aesthetic functions as it is composed of diverse multi-colour flowers which bloom in different seasons [1].

The Grand Park Garonne urban project aims to rehabilitate and develop the banks of the river Garonne that runs 32 kilometers through the city. From 2015, several development projects was planned to be carried out for a total of 28.7 million euros across 3 areas: the Garonne downstream, Toulouse center and the city's "green lung" Island of Ramier (Ref. 1, 4). Within these are 12 sites that consist of 40 pilot projects for operations. Among these are projects focused on protecting and restoring natural habitats and species in order to create a citywide green corridor (Ref. 8).

Andromeda is the first eco-district of Toulouse Métropole. Extended on the municipalities of Blagnac and Beauzelle, it brings together 210 hectares of green spaces, housing estates, residences and corporate offices. The district has been designed around the principles of sustainable development and the preservation of the environment (Ref. 1). The district includes a green corridor network, rainwater management systems (sumps, gutters, recovery tanks, landscaped basins, etc.), 12,000 trees, and the majority of buildings are equipped with green roofs, while green and blue spaces total 70ha and natural areas are 1/3 of the total area (Ref. 2, 3).

The planned intervention focuses on creating accessible green spaces for meaningful social exchanges. The City Council seeks to achieve this through a ground plan of connecting green spaces and ease of access into buildings. The intervention, proposed as a lineal green area, centers its structural organization around green spaces and public spaces. Accessibility for pedestrians is facilitated through spines of green spaces that cross the planned neighbourhood horizontally and vertically. These green spaces are planned to be watered with collected rain water, consequently the smart use of water is also a focus of the intervention. (ref 1)

The vertical garden is 600 m2 and is an intervention implemented in Pericon Plaza in the old city of Malaga. The garden is placed above a large metal mural with inspirational words for visitors to contemplate. The garden and metal mural were built on the wall-remains of a former house that stood in the spot but was in disrepair. (Ref 1)

A 5km section green corridor in the province of Malaga. The initial intervention was planned and opened in 2015, converting non-operational train tracks into a green path for pedestrian and cyclist use. (ref 1,4). The whole corridor will unite the Natural Site of the Desfiladero de los Gaitanes with the natural site of the mouth of the Guadalhorce river. (ref 3)

This intervention involved the realignment and merging of St. Mary's Way and Livingstone road into "St. Mary's Way Boulevard" of which a sustainable urban drainage (SUD) system is a key component. It consists of 31 large specimen trees that are planted in soil cells. The purpose of this project was to improve pedestrian accessibility, attract net investors, and to enhance the water drainage system (Ref 1).

The project involves the formation of a statutory Green Belt of 3,500 hectares as part of the broad strategy of the Tyne & Wear County Structure Plan to restrain the further spread of the built environment and to safeguard the city's countryside from encroachment (Ref 2). The Green Belt prevents small villages to merge with large towns, preserving their individual identities, and also accommodates a wide variety of the borough's environmental assets, including Local Wildlife Sites and wildlife corridors (ref 3). It is claimed to contribute significantly to the city's green infrastructure (Ref 1 & 4).
The Green Belt boundaries have not changed since 1998 (Ref 1), but it is currently (in 2020) under reassessment in response to the development needs of adjacent towns (Ref 1). Thus even though the intervention started almost 50 years ago, it is an ongoing process.