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Parque Lácides Segovia is an urban park located on Isla de Manga in Cartagena, Colombia. The park was inaugurated and revitalizated in June 2014 to serve as a multifunctional green space promoting cultural, social, and environmental activities. Named after General Lácides Segovia, a notable figure in Cartagena's history, the park aimed to provide a family-friendly and culturally enriching environment (ref 1). The primary goal was to transform a neglected urban area into a dynamic public space that fosters community interaction and enhances local culture. The park aimed to create a safe, inclusive, and accessible environment for residents of all ages, promoting social integration and cultural activities. Additionally, the project sought to establish a green area contributing to the ecological health of the city through urban greenery (ref 1, 2).
The first revitalization in 2014 involved facilities, planting native trees, and setting up public amenities such as Wi-Fi, seating, and cultural spaces(1, 2, 3).
This new revitalization in 2024, led by the local government of Cartagena, will focus on enhancing the infrastructure of both the park and the surrounding sports area in Manga to improve sustainability. The project has an estimated budget of approximately USD 675,000. The improvement works to provide better facilities and infrastructure to support recreational and sports activities, benefiting the community and promoting a healthier urban environment (ref 6). The park is essential for the community; it was recently the subject of several citizen science projects led by the Montessori School, including research identifying the park's ecosystem services (ref 3).

The Olive Garden ("Jardim das Oliveiras") is a green roof created in the Centro Cultural de Belém (CCB) in Lisbon, as a green space that blends natural elements with the surrounding cultural area and building. Situated by the Tagus River, the garden features a lawn, olive trees, and small lakes, offering a quiet place for people to relax and enjoy nature (Ref 1, Ref 2). It is a popular spot for families, young people, and children who use the space (Ref 1). The garden also hosts cultural events, such as concerts and DJ performances, adding to its appeal as a community gathering place (Ref 3, Ref 4).

In 2018, a group of residents from Sector II in the Villa El Salvador district initiated a communal effort to transform an abandoned space into an urban garden (3). This is how Ayllu 21, the first community-based agroecological garden in Villa El Salvador, was born. The project was spearheaded by a group of mostly migrant senior women who decided to dedicate their time and labour to reclaiming a landfill space, to turn it into a productive green area (1). Their philosophy is rooted in the concept of "ayllu," a Quechua word signifying family, collective identity, solidarity, and respect for the environment to foster harmonious coexistence (3).
Today, Ayllu 21 spans 1400 square meters and features 40 plots where agroecological practices are employed (1, 3). The garden aims to become a space for comprehensive development, through promoting environmental awareness, political advocacy, and the fight against gender-based violence in a district that ranks third in the number of violence cases (1).
The vegetables produced are primarily for self-consumption, with any surplus distributed among neighbouring families. If there are any sales, the profits are shared among the members, who work an average of two days per week in the garden (3).
This space seeks to strengthen socialization among women and seniors and foster learning and community-building among neighbours through agriculture. It was initiated with the support of IPES Promotion of Sustainable Development as part of the Sowing in the Desert program (3, 6), and it has received support from a diversity of programmes, such as the framework of the Women United for Food and Environmental Security (MUSA) (1).

For a Forest in Your Neighborhood" is an afforestation campaign by the DDOR insurance group, launched in 2022 as part of their Environment, Society, and Governance (ESG) commitments (Ref. 1). Site selection was based on online votings, with thousands of votes being casted from 188 towns across Serbia (Ref. 2). In the end, the fifteen most popular cities were selected for project implementation. As a result, hundreds of trees were planted, including 25 trees along the promenade of Belgrade’s Ušće Park in 2023 (Ref. 3). Ultimately, the initiative aims to create and enhance urban green spaces, to improve air quality and living conditions in Serbian cities (Ref. 5). The success of the campaign encouraged DDOR to extend the campaign in 2024, financed through their eco-insurance schemes (Ref. 4)

The Urban Forestry Plan for Cartagena, led by EPA Cartagena, outlines a comprehensive strategy for enhancing the city's green infrastructure. The plan focuses on selecting suitable tree species, planting, and management to achieve several goals: reducing heat through shade, creating microclimates, protecting against climatic events such as coastal erosion and windstorms, enhancing food security, and enhancing the landscape's beauty. Over 10 years, the plan aims to establish at least 100,000 additional trees, increase overall tree cover, enhance accessibility to green spaces, and build a main ecological structure based on natural resources and biodiversity. It also emphasises the importance of local knowledge and resources (ref 1).
Formulated with community input, the plan commenced in 2013 and involved a detailed assessment of existing urban vegetation and climate conditions, utilising tools such as iTree. The development included international conferences and expert consultations to ensure a robust and informed approach (ref 1).

The Surco district of Lima has implemented a vertical bio-garden occupying a 685 square meter area within El Aire Park. The garden comprises a 600-meter linear structure supporting 11,000 planters fabricated from recycled plastic bottles. This system yields a substantial crop production of between 400 and 1,500 varieties on a 20-day cycle (1).
Initiated by the Municipality of Santiago de Surco, the bio-garden is designed to contribute to the district's economic, nutritional, and environmental sustainability (1, 2, 3, 5). By cultivating high-protein, nutrient-rich crops, the municipality provides essential sustenance to 24 local community kitchens (1), a local market (3), parishes, and social aid organizations (1).
To optimize crop yield, the municipality has implemented specialized techniques, including seedling cultivation, harvesting, and organic fertilization, to prevent pest and disease infestations (1). Since its implementation in 2020 with an initial 7,000 planters, the project has expanded by 300% to accommodate 11,000 (1). Cultivated plant varieties include medicinal herbs, leafy greens, root vegetables, and infusion ingredients (2, 5).
Additionally, the initiative serves as an educational platform, demonstrating and spreading sustainable home gardening practices utilising recycled materials such as plastic bottles (3, 5).

Barranco, the smallest district of Metropolitan Lima, is suffering from serious environmental problems that are affecting its inhabitants. Environmental degradation is a consequence of the increase in large buildings (real estate boom), which reduces green space areas and causes a deficit of vegetation in the district. Additionally, there are high levels of air pollution due to car traffic, which has been accentuated by the lack of green areas in the area, which affects the environmental quality and the population's quality of life (1).
Additionally, the district doesn't have more free public areas where new green areas can be created. Due to these combined pressures, the local government has looked for alternatives, considering private areas, which have a high potential to implement green roofs and vertical gardens, which can contribute to face Climate Change as a mitigation strategy and improve the quality of life (1). The Green Roofs and Green Walls strategy is proposed to build citizen culture, nature appreciation, landscape, and ecosystems (2, 3). The aim is, therefore, to encourage the inhabitants of the district to progressively install green roofs and walls, employing an economic incentive in the taxes paid to maintain public green areas (4).
The programme is oriented to generate environmental benefits such as the reduction of air pollution, acoustic insulation, thermal comfort, and increase of green areas (m2) per inhabitant, and social benefits such as the improvement of the living conditions and health of the inhabitants of the district (1, 3), the promotion of social relations (1), the aesthetic improvement of the city, and the possibility of producing food for self-consumption, as there is support in the implementation of hydroponic systems in the green walls and roofs (1, 3). Its implementation focuses on new, under construction or existing residential, commercial, office or lodging buildings (3).

The pilot project in Bairro Padre Cruz, Carnide, Lisbon, is a groundbreaking initiative aimed at enhancing women's safety in public spaces and improving access to public transport. Launched in June 2024, this project stems from extensive consultations with local women to address their specific security concerns (Ref1). It involves strategic interventions like better lighting and the relocation of bus stops to safer areas, ensuring a more secure environment for women (Ref4). A key element of the project is the greening of the area through tree planting and the creation of more harmonised public spaces, contributing to a more pleasant and welcoming neighbourhood (Ref2). Funded by the Recovery and Resilience Plan (RRP), this initiative aims to foster greater inclusivity and safety in urban design, with completion expected by 2025 (Ref4).

The Taylor Park Community Garden is part of the After School Tutorial Program and is managed by the Methodist Inner City Mission. Located in the Maysville and Oakdale areas of Mobile, Alabama, the garden primarily serves children from these communities. After receiving homework assistance, students from elementary and middle schools participate in the Gardening Program, where volunteers teach various gardening concepts and engage the children in hands-on activities.
Taylor Park Community Garden is part of a network of community gardeners and urban farmers across the city called Mobile Urban Growers, which aims to increase access to fresh produce for everyone to contribute to tackling the high rate of diabetes (Mobile has one of the highest rates of diabetes in the United States) and food desert in Mobile (over 25% of Mobilians live in a food desert as defined by the USDA without access to fresh fruits or vegetables) (Ref 2). Taylor Park became part of the Mobile Urban Growers (MUG) after it began its operations around 2016 (Ref 2). The garden is open to the entire community, with Mobile Urban Growers and Mobile County Master Gardeners (a volunteer recruitment program) providing support and guidance.
The produce harvested is shared among gardeners, participating children, local residents, and the Food Pantry at Central Presbyterian Church. (Ref 1)

The "Jardim do Eucaliptal" (Eucalyptus Garden) in Benfica is undergoing extensive renovations to improve its facilities and usability. Over time, the intensive urbanization of this neighbourhood has not left many traces of the historic eucalyptus forest typical of this area, but this urban park actively protects and maintains these old and heavy-trunk eucalyptus trees, growing amidst the park's more recent vegetation (Ref. 3). In the last few years, several trees have fallen, causing considerable damages to buildings and vehicles in the nearby area (July 2023), and leading to residents demanding financial compensations for damages and for the Lisbon City Council (CML) to take action for mitigating future problems (Ref. 5).
The renovation project implementation, expected to last six months, includes refurbishing the children's playground, sports field, toilets, and amphitheatre, along with introducing a dog park and outdoor exercise equipment (Ref 1). The park, originally part of the Quinta das Palmeiras de Guerreiro Galla forest, remains a crucial green space in the area despite extensive urbanization (Ref 2). These renovations, with a budget of 180,000 euros, also address the maintenance of public street furniture, the pavement, and lighting infrastructure, ensuring that the park meets the growing needs of the local community (Ref 3). These activities aim to meet the growing needs of the local population and improve these urban green spaces so that the community can enjoy them to the fullest. (Ref. 4).