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The Acropora Project is a coral restoration initiative launched in 2015 by the Martinican Regional Directorate of Environment, Planning, and Housing, primarily implemented by the nonprofit organization Assomer. It focuses on two critically endangered Caribbean coral species: Acropora cervicornis and Acropora palmata, as classified by the International Union for Conservation of Nature. While Acropora palmata thrives on the Atlantic seabed of Martinique, Acropora cervicornis had seemingly vanished from local waters by 2007, despite previously providing crucial habitats for marine life. However, this species was rediscovered in 2013 at Loup Caravelle on the Atlantic side of Martinique.
The initiative began by extracting cuttings from both species at Loup Caravelle and nurturing them at a separate site in Le Diamant. In 2019, these corals were transplanted to three locations on the seabed of Sainte-Luce, demonstrating surprising growth patterns despite the site's low to medium environmental quality.
The project's primary aim was to prevent the permanent disappearance of both coral species through spatial replication techniques, including cutting and transplantation. Particular attention was given to enhancing the genetic variability and range of Acropora cervicornis. The initiative also aimed to raise awareness about current coral conservation challenges.
Additionally, the project included a research component that contributed to a better understanding of environmental conservation and the restoration of Acropora cervicornis populations. Unfortunately, a temperature increase at the end of 2023 resulted in the decimation of all corals at the transplant sites. (Ref. 1 -5)

The Ringsend Open-Air Laboratory project in Dublin, Ireland, is part of a broader effort to adapt urban areas to increasing climate change risks. This initiative focuses on installing green roofs and deploying a network of environmental sensors to enhance urban resilience. Launched in 2018 under the Horizon 2020 OPERANDUM project, the effort seeks to find nature-based solutions for climate change impacts worldwide. Led by the University of Bologna, OPERANDUM involves over 20 partners, primarily in Europe, working together to address environmental challenges like flooding, drought, and coastal erosion through the establishment of ten "Open Air Laboratories" globally.
In Dublin, the project aims to bolster flood resilience in Ringsend, a critical economic area near the city’s tech district, which faces substantial flood risks due to its low elevation and proximity to the Dodder River. This river, which flows through both rural and urban areas before meeting the River Liffey near Ringsend, has caused property and infrastructure damage from extreme rainfall and combined river and tidal flooding.
Green roofs play a key role in mitigating urban flood risks in this project. These rooftop gardens absorb large volumes of rainfall before it reaches the streets, easing the load on existing flood prevention systems like storm drains and gullies and reducing the need for additional "grey" infrastructure. Based on community insights and recommendations, construction has begun on a green roof on top of the CHQ building in Dublin’s Docklands, in partnership with Dogpatch Labs.Complementing this, over 100 sensors have been deployed in recent research trials across Dublin. OPERANDUM researchers are now building on this foundation to create a denser, more reliable, and cost-effective sensor network, with data from earlier low-cost sensor trials made publicly accessible via Dublinked, Dublin’s open data platform, and exploring the use of LPWAN for environmental sensing. (1-5, 7)

The Çukurova University Botanical Garden was initiated in 1972 by the Department for Landscape Architecture to protect and conserve the rich native and non-native biodiversity of the region for future generations (Ref. 5,9). Its establishment responds to the lack of Botanical Gardens in Türkiye despite the country's great diversity. The Garden also wants to offer protection for increasingly threatened species in the face of rapid and uncontrolled urbanization (Ref. 5,9). Being located close to two Deltas and an important agricultural region, the collection also aims to include a great number of wetland and agricultural species, drawing public attention to the importance of these ecosystems (Ref. 6). As such, the University invites every school in Adana to visit and participate in its ongoing educational activities and primary school children are offered hands-on gardening programmes (Ref. 1,2). Furthermore, visitors can immerse themselves and learn about various vegetation zones, including endemic maquis, where stairs, walking paths and information boards have been installed (Ref. 4). The University maintains research activities in the Botanical Garden and in on site laboratories, which regularly host interns (Ref. 4). To ensure the stready supply of plant material for landscaping and education, nurseries have been set up and in 2020 a 250 m² medicinal and aromatic plant greenhouse was added where students of the Faculty of Agriculture are trained and endemic species grown (Ref. 9,10).

The municipality of Ciudad Juarez, in collaboration with UN-Habitat, has drafted a redevelopment strategy for an area known as "Paso de Oñate." This intervention falls within the broader framework of "Vision Ciudad Juarez 2040." The plan involves constructing a forested green belt along the southern edge of the Rio Grande (/Bravo) in the northwest part of Juarez, bordering the USA.
Currently in the planning stage, the project aims to restore the ecological function of various degraded areas along the Rio Grande, transforming them into a continuous, green, walkable, and recreational space. The strategy includes allowing vegetation to recover, introducing native plant species, and increasing tree cover to rehabilitate unmaintained parks, derelict areas, and degraded riverbanks. These areas will be equipped with new features and integrated with existing parks, schools, and playgrounds. The envisioned green corridor will enhance walking conditions, improve the perception of safety, offer recreational opportunities for all age groups, and deliver valuable ecosystem services such as temperature regulation, improved air quality, and water retention.
In addition to its ecological goals, the project has a historical and geographical dimension. It aims to incorporate cultural heritage elements, such as the monument of the New Citizen, Paso de Oñate, Turtles Park, and the beginning of the Acequia Madre. It will also connect with other green space initiatives, including the Mega Park "El Chamizal" and the "Corredor Cultural," which runs through the city center.
This intervention is being prioritized due to the area's ongoing social and ecological decline. Paso de Oñate is a critical border crossing point, which negatively affects mobility and air quality. The area also suffers from a high concentration of vacant housing, which contributes to the residents' perception of insecurity. (Ref. 1, 2, 3, 4)

Project Roots is a community-based nonprofit organization dedicated to fostering sustainable living and enhancing food security in South Phoenix, Arizona. Founded in 2020 in response to rising food insecurity—an issue impacting one in seven Arizonans—Project Roots aims to provide lasting solutions through community education, accessible fresh produce, and supportive services for vulnerable populations.
Central to Project Roots’ mission is its work in community gardening. The organization manages and maintains several community gardens, including 20 reserved rows at the Spaces of Opportunity Garden, where individuals and families can cultivate their own produce. Through these gardening spaces, Project Roots empowers community members to grow their own food, promoting self-sufficiency and healthier food choices.
Education is a cornerstone of Project Roots' outreach. The organization offers hands-on gardening classes, workshops, and educational resources that teach sustainable food production practices. A significant part of this educational effort focuses on South Phoenix's youth, helping them understand where their food comes from and how to grow it, fostering both awareness and skills that encourage lifelong healthy habits.
Project Roots also works to ensure that fresh, locally grown produce reaches the wider community. By distributing produce through farmers' markets, produce bags, and partnerships with local food banks and soup kitchens, Project Roots provides a consistent source of nutritious food to those who need it most. The produce bags, often delivered to community centers and low-income housing areas in Phoenix, help bridge the gap for those with limited access to fresh food.
In addition to its food-centered programs, Project Roots extends its support to include essential services such as food assistance, hygiene items, and temporary shelter, making it a vital resource for individuals and families experiencing hardship. (1-5, 8-14)

A green area was turned into a "reuse park" to save trees, bushes and other plants that had to be moved from elsewhere due to construction work. The project resulted from constructing the new business school at the University of Gothenburg, where circular economy initiatives are being tested. Plants that would have to be removed from that site were moved to the park at Medicinareberget temporarily. They will later be replanted elsewhere on campus, saving money and reducing the environmental impact of buying new plants. The lead actor in the project is the public real estate company Akademiska Hus, which owns and manages the affected parts of the university campus. The reuse park was established in 2021, and it's implied that it can continue to function as a storage site for plants from different construction locations. The project is highlighted as a learning opportunity for how the reuse of plants can be implemented in future construction projects. The project is connected to the regional initiative Återbruk Väst within the national platform CCbuild, which promotes circular solutions in the construction centre [Ref. 1-5].

Bound by miles of steel, concrete, or brick walls, Berlin’s rivers and artificial canals often look alike. Plastic bottles, along with ducks, swans, and perhaps the occasional coot seeking scraps from humans, are some of the few visible signs of life. Underwater, the scene is similarly sparse and monotonous, with only a handful of resilient species able to endure the harsh conditions.
In response to this lack of biodiversity, researchers from the Leibniz Institute for Freshwater Ecology and Inland Fisheries in Berlin collaborated with the engineering firm Wite to create the Vertical Wetland project. This initiative introduced plant boxes that attach to sheet piling along canal walls, extending into the water to form miniature habitats. These boxes serve as refuges for insects, birds, fish, and other small animals, offering hiding spots and sheltered spaces for egg-laying among the roots and boxes protruding into the water. Known as "ecological stepping stones," vertical wetlands enable animals to rest and safely traverse urban waterways, fostering biodiversity along urban riverbanks.
Vertical wetlands present a quick and cost-effective way to ecologically upgrade sections of urban waterways. Although they can’t fully replace natural riverside habitats, these mini-habitats offer substantial ecological benefits. Native river floodplain plants, including willows, reeds, rushes, and shallow-water species like irises and marsh marigolds, provide the foundation of these structures. All materials used are environmentally friendly and biodegradable.
By covering the grey, industrial surfaces of riversides, the vegetation cools the local environment, both on land and in the water, and helps improve water quality. Plant shading cools water, reducing eutrophication risks and creating a healthier habitat for aquatic life.
The Vertical Wetland project’s pilot installation was successfully implemented and tested in 2023 in the Berlin-Spandau Ship Canal. (1, 3, 6)

The Gårda pilot rain garden has been constructed as part of the research project Innovative Rain Gardens at Chalmers University of Technology in Gothenburg. In addition to causing flooding, runoff rain water in urban environments can be contaminated with microplastics, organic pollutants and metals which can spread into the natural environment. Yet, most of the storm water in urban environments is not treated. The purpose of the Innovative Rain Gardens project is to research the ability of a pilot rain garden to treat such pollution. The project acknowledges the function of a rain garden to prevent flooding, but in this study only the pollution treatment potential is investigated. The pilot rain garden was constructed next to the E6 highway in central Gothenburg [Ref. 1-4]. It includes several different bioretention filters where selected plants are grown in filters containing different materials such as biochar, ash and soil [Ref. 2, 3]. Results so far show that the use of rain gardens can significantly reduce pollution. However, further research is needed to determine the long term function of the bioretention filters and the potential of scaling up the NBS. The project is funded by the Swedish Research Council for Sustainable Development (Formas), IMMERSE - Implementing Measures for Sustainable Estuaries, an Interreg project supported by the North Sea Programme of the European Regional Development Fund of the European Union, and COWIfonden (private foundation) [Ref. 1-3].

The "Jubilee Park" (Jubileumsparken) is a city park in the developing area of Frihamnen in central Gothenburg. The first part of the park finished construction in 2024, but the aim is that the park will continue to grow and develop until the year 2035 [Ref. 1-2, 5]. The park is said to be the result of the wishes of the people of Gothenburg to have better access to green areas and water before the city's 400-year jubilee in 2023 [Ref. 2]. To achieve this, the park has been constructed gradually in cooperation with residents, using a method called placemaking, where activities and amenities are tested in place to get feedback from residents before being made permanent [Ref. 2, 4]. Additionally, activities in the park are being run by a youth organisations, which also offers summer jobs to young people from across the city and aims to engage marginalised groups [Ref. 1, 6]. The park provides amenities a sculpture-based playground, an outdoor classroom, places to sit and a harbour bath at the edge of the park, with outdoor pools and a sauna. The park contains elements for biodiversity such as trees, meadows and an area for urban farming, increasing biodiversity and connectivity compared to the previous land use as a harbour [Ref. 1, 2, 9].

Baštalište is an organic community garden initiative located in the town of Slanci, some 20 minutes from the city centre of Belgrade (Ref. 3). It is one of the first initiatives of its kind in Serbia, emerging after organizations such as WWOOF Serbia and the Belgrade Flower Festival, along with activists and citizens, united with the goal of growing vegetables for their own needs. Additionally, they aimed to highlight the numerous neglected and abandoned urban spaces in the city that could be repurposed in this manner (Ref.1). Even though more and more people would like to join Baštalište, the community has been struggling to grow beyond their original plot of 1800 m2, shared between some 30 people of mixed demographics (Ref. 3). They have turned to the municipality to provide more such spaces for urban community gardening but their appeals bear little success (Ref. 2,3). Despite their spatial constraints, the initiative remains open to anyone who would like to visit and help while being financed by membership fees (Ref. 1,2,3). The initiative hopes to eventually scale this type of activity, drawing inspiration from the example of Zagreb, where over 2,000 garden communities were established within 2.5 years after the city decided to repurpose its neglected areas (Ref. 2).