Unequal availability and access to public green spaces

The Urban Oasis Playgrounds project focuses on creating a guide for green regeneration of playgrounds located all over Iasi by using natural climate solutions, with the potential for wider application beyond the city(1 to 6). The project's primary goal is to tackle pollution in playgrounds and address the overall lack of green spaces for children (1). This initiative is led by the NGO Civica in collaboration with the Municipality of Iași and the Architects Association in Iași (OAR) (1). The project secured €50,000 in funding after winning a competition organized by Raiffeisen Comunități, with support from the NGO "Asociația pentru Relații Comunitare" (2 & 3).
In addition to pollution, the project seeks to address other critical issues, such as the heat island effect and the proximity of playgrounds to risk-prone areas (1). The guide will be developed based on public consultations with Iași residents and a comprehensive study to tackle these concerns (1 to 7).
Currently, the first phase of the project is underway, involving assessments of various factors in playgrounds, including existing vegetation, shading, surface quality, infrastructure conditions, and pollution risks (4). These aspects are also reflected in a questionnaire distributed to the public, which gathers opinions on factors like cleanliness, noise exposure, thermal comfort, safety, and preferred natural green solutions (6).
The initiative aims to raise awareness about climate change, actively engaging the community in the process (4). Once completed, the guide will be presented to the municipality with the goal of being adopted as a standard for future playground developments (1, 3, 4, 6). The first phase of the project will regenerate a playground by planting trees and native vegetation (3).

Terres Sainville is one of Fort-de-France's priority neighborhoods, known for the precarious living conditions of its residents and the prevalence of illicit activities. Many plots of land in the area have been abandoned and are used as informal dumpsites. In response, the City of Fort-de-France developed the "Jaden Lanmou" (Garden of Love) program, which aims to revitalize neglected spaces across the city’s 145 neighborhoods, Terres Sainville being one of them.
With support from the Terres Sainville town hall, neighborhood associations (such as the Terres Sainville Citizens' Council and local schools), and the Ypiranga Martinique association, the community has been working to transform these wastelands into shared gardens. Since 2021, Ypiranga has created 10 productive gardens, designing each based on the land's configuration, soil quality, and the preferences of local residents, including options for market gardening, medicinal plants, fruit trees, and above-ground containers (Ref 1; 7).
This initiative prioritizes the development of city-owned land and strategic transit sites, while also encouraging private landowners to maintain their abandoned plots or share them with the community. Additionally, the program seeks to enhance existing flowerbeds, create new ones, and incorporate artistic elements like street art and graffiti. Public meeting spaces are being developed to foster community interaction.
The city aims to involve residents by providing equipment, training, workshops, and advice on best practices. Ultimately, neighborhood representatives and residents will be responsible for maintaining these new communal spaces and ensuring they are respected (Ref 2).

The redesign of Reinprechtsdorfer Street in Vienna is a greening initiative aimed at climate adaptation by reducing local temperatures and increasing green space in a densely built urban area. Implemented within one year, the project included planting trees, adding green beds, and widening the pavement to create a more inviting environment. New seating areas, drinking stations, and water play installations were introduced, providing spaces for relaxation, cooling off during high temperatures, and fostering social interaction. Accessibility and traffic safety were enhanced by leveling the pavement with the street and adopting a one-way system for cars.
The project, realized in 2023, was part of Vienna's city-wide "Out of the Tarmac" initiative and was spearheaded by the district and city council. It originated from discussions and a participatory design process with citizens dating back to 2014. Previously, Reinprechtsdorfer Street served as a congested connection between Wienzeile and Gürtel. The plan seeks to transform it into a “climate-friendly shopping street.”
The redesign involves planting 32 new trees accompanied by flower beds, plus three standalone flower beds. Sidewalks were widened, and amenities included parking for 36 bicycles, nine benches, and seating for 46 individuals. Cooling features such as two water installations, three mist columns, and two drinking hydrants will enhance comfort.
Renovation began in spring 2023, focusing first on the 400-meter stretch between Schönbrunner Straße and Arbeitergasse. A structurally separate one-way cycle path will link Schönbrunner Straße to Bräuhausgasse, while the existing cycle lane against the one-way system remained unchanged. (Ref. 1, 2, 6)

The "Active Recreational Green Area Development at Horváth-tető" in Miskolc is a project aimed at revitalizing a central yet underutilized urban space, commissioned by the Municipality of Miskolc in 2017. A distinctive feature of Miskolc is the Avas hill, located in the city center, which beautifully blends nature with urban elements. Despite its potential, the area had been neglected, particularly following the decline of vineyard culture and the reduced use of old wine cellars. To address this, a comprehensive development plan was initiated to rejuvenate the Avas region, with Horváth-tető at its core.
The project aimed to transform the area into an outdoor recreational hub for all age groups. The hill's historic terraces, once popular promenades, were repurposed into distinct, multifunctional spaces. Sports enthusiasts can enjoy facilities such as street workout stations, an outdoor gym, a skate park, a climbing wall, and parkour elements. For those looking to relax, picnic areas, sunbathing spots, and a retro-style terrace are available. The entire development prioritizes accessibility, providing inclusive options for visitors with mobility challenges.
The park also features significant landscaping, including the planting of trees, shrubs, perennials, ornamental grasses, and ferns, enhancing its overall appeal. Infrastructure improvements were made, including the restoration of stairs, paths, retaining walls, and the rainwater drainage system. A special shallow basin was designed to collect rainwater and support plant roots while also serving as a playful area for dogs within the dog park.
Since its opening in 2022, the park has become a popular destination, offering a tranquil escape in a beautiful setting. It provides a wide range of recreational opportunities for people of all ages, making it a valuable addition to Miskolc’s urban landscape and connecting the historical Avas hill with modern city life.(Ref.1,2)

The Recovery of Green Area on Avenida del Lago is a group of activities aimed at restoring and preserving the ecological integrity of green space within an urban setting. This project involves multiple stakeholders, including the "Establecimiento Público Ambiental" (EPA) Cartagena, "Fundación Verde Que Te Quiero Verde", Asopopa, and local businesses such as Crepes and Wafles and Centro Comercial Caribe Plaza. The primary focus is environmental restoration, sustainable urban mobility, and public space recovery (ref 1). The project aims to rehabilitate the degraded green spaces along Lago Avenue by enhancing urban greenery, restoring mangrove ecosystems, and improving public access and mobility. It also focuses on reducing pollution, preventing informal waste disposal, and raising environmental awareness among local communities and businesses. These activities align with broader efforts to promote ecological sustainability and enhance urban resilience (ref 1, 3). Since 2020, activities have included the planting of trees, mangroves, and other native vegetation in the green spaces of the avenue. Regular clean-up campaigns have been organized to remove solid waste, and community education programs have been conducted to promote environmental stewardship (ref 2). Previously, Lago Avenue was an area plagued by pollution and homelessness, and with the project, the intention is to gradually transform the area into a wooded area or productive park (ref 2).

The green belt regeneration project along the Byzantine Walls of Thessaloniki aims to revitalize the neglected green spaces surrounding these historic fortifications, which span 4 kilometers and are recognized as a UNESCO World Heritage site for their remarkable Byzantine architecture. The walls are located in Thessaloniki’s densely populated Upper Town, a factor that contributed to their environmental degradation. As such, the project focuses on restoring the degraded space surrounding the walls, improving the urban microclimate, and strengthening urban resilience while maintaining the area’s traditional character. By integrating heritage conservation with sustainable green infrastructure, the initiative seeks to provide both environmental and social benefits to the local community. Proposed by the Municipality of Thessaloniki and approved by the Greek government as part of a program that focuses on Central Macedonia, the project envisions a revitalized green zone along the walls, with vegetation and different types of trees being planted. However, some local families have expressed concerns, as the project involved the demolition of certain homes in the officially designated green belt area. (Refs. 1, 2, 3, 4, 14).

The Jardim do Caracol da Penha project transformed a vacant urban area into a community garden and recreational space in Lisbon. Initially planned as a parking lot, the project was reimagined by local residents, led by Rita Vieira Cruz, and submitted to the Participatory Budget in 2016, garnering over 9,000 votes (Ref 2). The one-hectare garden connects the Arroios and Penha de França parishes and features leisure areas, an amphitheatre, playgrounds, and a community garden (Ref 4). Its design was shaped by citizen input, emphasizing sustainability and accessibility, with plans to support activities such as outdoor cinema and community gatherings (Ref 2).

The City of Marseille is engaged in a city-wide project to develop community gardens across its territory. It supports project leaders by providing municipal land and offering a framework along with technical support (Ref 5). Currently, there are 80 community gardens, including 66 shared gardens and 14 family gardens, covering nearly 32 hectares in total (Ref 1).
Marseille aims to provide all residents with spaces for relaxation and socialization in every neighbourhood, particularly fostering shared gardening spaces in neglected land, forgotten squares, building bases, or areas awaiting development. (Ref 1). Community gardens contribute to the city's beautification and support biodiversity (Ref 1) and are founded on values of solidarity, conviviality, and fostering connections between generations and cultures (Ref 4). This initiative also addresses the issue of agricultural land disappearing due to urbanization, while Marseille's many abandoned wastelands offer genuine opportunities to rethink production models (Ref 3).
The city has created a Charter to be signed between the city and garden managers, which can include groups of residents or associations (Ref 2). The charter includes criteria such as citizen involvement, fostering social connections, promoting biodiversity, restoring soils’ health, planting local species, and eco-responsible gardening practices (Ref 2). In return, the city supports the development of these gardens, providing land and offering technical and methodological assistance, including soil analysis and advice on environmentally friendly gardening practices (Ref 2). Additionally, community gardens can serve an economic purpose by creating jobs and enabling the production of healthy and flavorful fruits and vegetables at a lower cost (Ref 2).

Phoenix is America’s fifth largest and hottest city, a sprawling urban heat island which has expanded without adequate consideration to climate and environmental factors like water scarcity and extreme heat (1). ​Multiple heat records were broken in 2023 including 133 days over 100F (37.7C), and 55 days topping 110F (43C) (1). Only around 9% of Phoenix is protected by tree canopies, yet this citywide figure masks vast inequities between wealthy, majority-white neighborhoods (1). As a response, the City of Phoenix has adopted an equity-driven heat mitigation plan to create a shadier, more livable environment amid rising temperatures and hundreds of heat-related deaths (1). Part of this plan created the Community Canopy Grant program, which offers public schools, churches and homes in qualifying census tracts – low-income neighborhoods with little shade funds for tree planting projects (1). One neighborhood, Grant Park is one of the city’s oldest neighborhoods – and one of the most neglected (1). It is a red lined neighborhood with higher pollution levels, less vegetation, more noise pollution and higher temperatures (1). To change the inequity and create enough shade to provide residents and passersby reprieve from the heat, the city planted around 40 trees in the Grant Park neighborhood within household yards (1-2). Residents can choose from a list of 19 native and desert-adapted trees including the Texas olive, Chinese red pistache and Chilean mesquites (1). The trees, which are a couple of years old and pretty heavy, are planted by contracted arborists (1). Following the planting process, each household was provided with a tree kit – a hose, irrigation timer and instrument to measure the soil pH and moisture, as well as written care instructions (1). This is the fourth tree planting effort by this city and the hope with this initiative is that it lasts (1).

The greening of the Luceafarul theater esplanade is an initiative that is part of a corporate social responsibility strategy by the real estate company IULIUS (3, p. 86 & 89). The initiative aimed to expand and complement the green spaces and landscape design of the company's urban ensemble, Palas, located in the center of Iași (1 & 2). The space was previously occupied by a building owned by the company (5). Initially, the plan was to transform the building into a business center after donating it to the municipality (8). However, IULIUS and the Municipality of Iași agreed to demolish the structure and design a public space for the citizens instead (5 to 8). This decision was also influenced by the public’s desire to keep the area open, maintaining a clear view of the historical landscape, which was later incorporated into the municipality’s urban planning (8 & 9).
The design features a green field of 2,100 square meters, including 35 trees of various species (chestnuts, plane trees, and Ginkgo Biloba imported from nurseries in Italy) and 3,000 shrubs and bushes (1 & 2). The vegetation is maintained through an automated irrigation system (1 & 2).
The initiative aims to improve access to green spaces in Iași (3, p. 86) and to provide a space for recreation, relaxation, and leisure, with benches installed throughout the area (1 & 2). IULIUS intentionally places green space projects in central urban areas to ensure they are accessible to all residents (3, p. 86). Additionally, the municipality requested that the green space enhance the area's microclimate and improve the aesthetic appeal of the surrounding cultural landmarks (9, p. 6).