Green densification model

The Tineretului Park is a special vegetation and touristic area, a forest park stretched over an area of ​​over 60 hectares, on the left bank of the Jiu River. It was rehabilitated in 2009 by the municipality and it is the second-largest park in the city. Before its rehabilitation, it was seen as a dangerous area, high in petty crimes. Its rehabilitation was also much needed since Craiova is one of the Romanian cities with the lowest number of green spaces (1,2) .

In 2014, a high school in the center of Craiova decided to transform a part of its space into a vegetable garden, National Pedagogical College "Stefan Velovan". The initiative is the only one implemented in the region and aims not only at teaching children about the benefits of bio food but also aims to save consumption costs (1, 3).

The Malmo Office Tower is a building of offices built having in mind the example of the Swedish city of Malmo. The building is the only green building in Craiova and it has as a starting point the development of sustainable infrastructure and the use of alternative energy sources. It contains green balconies and it aims to become an example for other cities throughout Romania, bearing as a goal to transform in reality "the dream of a green city, where our children can breathe without worry" (1) It is located near the major 2 parks of the city.

The largest park that Craiova has (third in Europe and second in Romania), the Nicolae Romanescu park is a historical area which includes green space, a hippodrome, a lake and a zoo. In 2015 the park went into rehabilitation with money allocated by the EU (1).

Forests fulfil several important climate functions, they are carbon sinks, regulate the local climate or buffer heatwaves and cloudbursts. Based on climate projections, longer dry periods are to be expected during summer months which have major implications for local humid forests. The “fit for climate change” project was initiated to develop and implement climate adaptation measures for the latter, for instance via hydrological regulation, the use and reinstatement of resilient, adapted tree species or revitalizing moors and swamps. It was administered by the regional forestry authority and the nature conservation station Münster (Ref. 1 and 2).

The Sunderland Greenspace Audit explained the city's green space in detail and set guidelines and standards that will help to ensure that all areas of the city have a range of quality green spaces available to them. Hereby the Sunderland City Council wished to improve the green public spaces to retain existing residents and attract new ones, to enhance the image of the city and for it to be used as a means to attract future investment in the form of new shops and jobs (Ref 1).

The green initiative 'Oost Indisch Groen' (East Indian Green) is a citizen initiative to make the neighbourhood more sustainable, fun and healthy by means of active citizenship. The key NBS initiative is the neighbourhood garden ('Buurttuin Oost Indisch Groen') in which vegetables are grown with a community kitchen that supports social cohesion and that also gives space for an educational workshop on gardening and sustainability-related topics (1, 6,7)

The Aa promenade, created in 1950 to provide the citizens of Muenster with a green experience trail in the inner city, was redeveloped in the 90s with several planting measures on riverbanks, walls and in adjacent areas. Next to a brochure, a nature trail which combines the existing recreational with an educational component was created with 18 site-specific signposting points. They cover multiple benefits and ecological functions of urban green spaces, city trees and green facades/walls (microclimate regulation, air quality, CO2 capture), anthropogenic threats, unknown biodiversity hotspots and natural monuments (Ref. 1, 3 and 6).

The Green Ventilation Corridors network in Stuttgart, Germany is an implemented nature-based solution coupled with regulatory policies and incentives. Within this initiative, Green ventilation corridors were created to enable fresh air to sweep down from hills surrounding the city (4).

The Knowledge Mile Park initiative in Amsterdam aims to transform the long, busy and traffic-heavy street in downtown Amsterdam into an environment greener, more sustainable and more livable through the implementation on various Nature-based Solutions (9). Smaller projects include the creation and maintenance of pocket parks, green walls and facades, green roofs and living labs. The idea of the initiative came from the Knowledge Mile Community that aims at making Amsterdam more green, clean and smart by means of innovative solutions regarding air quality, climate change resilience, biodiversity and social cohesion. (1) municipality of Amsterdam and the business investment zone BIZ Knowledge Mile are working together with partners on the realization of the project (9)
The project is still ongoing, although parts of the Knowledge Mile Park are already created in 2016 including one living lab, two green roofs, a green canopy and a pocket park and other parts are planned such as the smart green wall (1)