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Pollinators—including bees, butterflies, moths, hummingbirds, sunbirds, and bats, all found in the Sonoran Desert—play a vital role in plant reproduction, contributing to the production of fruits, vegetables, and seeds. However, these essential species face growing challenges, such as habitat loss, pesticide use, and climate change.
In 2023, the Rio Reimagined project, a two-year regional river revitalization initiative, received a grant from the Society for Ecological Restoration’s Standards-based Restoration in Action program, in collaboration with Microsoft. This grant is funding the creation of a riparian pollinator garden designed by ASU students at the Nina Mason Pulliam Rio Salado Audubon Center, situated on the banks of the Salt River in Phoenix. With strong support from the City of Phoenix, Microsoft’s Community Environmental Sustainability (CES) program, and planting expertise from the Tiger Mountain Foundation, a one-acre garden was restored in 2024 to establish a thriving pollinator habitat.
This restored garden includes interpretive signage and programming designed to educate visitors on the importance of riparian ecosystems. More than one hundred volunteers planted native species along the Rio Salado to attract and support pollinators such as bees, butterflies, and birds. The garden is specifically designed to be climate-resilient and drought-tolerant, enhancing the biodiversity of the Salt River.
This initiative not only revitalizes the Rio Salado Audubon Center but also cultivates native plants, supports pollinator populations, and benefits the broader community through increased environmental awareness and sustainability. (1-3)

The Kikås dump is a landfill in Mölndal, south of Gothenburg, where an area has been permanently covered with a sealing layer and inert material. This project aimed to utilise the area to increase biodiversity by establishing flowering meadows and an insect hotel, creating a habitat for wild bees, butterflies and birds [Ref. 1-3]. The City of Mölndal initated the project and sowed meadow flowers, established sand beds for burrowing insects, an uneven, rocky terrain and a large insect hotel [Ref. 1, 3]. The area is also meant to be a destination for recreation and learning about biodiversity. The Insect Hotel is marketed as the largest in Sweden, and it includes information signs and an outdoor classroom. The project is meant to raise awareness about biodiversity and ecosystem services such as pollination [Ref. 1, 4-6]. The area borders natural areas such as forests and wetlands and is meant to have positive ecological effects in the border zones. The project will contribute to the environmental goals of the city, in particular, "a rich plant and animal life" [Ref. 3]

Medal of Honour Park, located in West Mobile, is the city's second-largest park (Ref 3, video). A City-County partnership is planning to implement significant changes to the park and its amenities (Ref 3). These changes include crowning and sodding the field, surrounded by large oaks, making it an oasis in the middle of the city (Ref 1, Ref 5). The project will focus on upgrading recreational and sports facilities, such as improvements to the golf area (Ref 1), tennis courts, and softball fields (Ref 1, 4). Additionally, the playground will be entirely rebuilt, featuring RSA Tower slides, new drinking fountains, new fencing, and rubber play surfaces for added safety (Ref 3). Cultural and social enhancements are also part of the plan, including upgrades to the amphitheatre (Ref 1). Visitors will enjoy a walking trail that allows them to experience nature while exploring the park. Other amenities receiving upgrades include lighting, wayfinding signage (Ref 1), as well as improvements to the concession stands and restrooms (Ref 4). Traffic circulation within the park will also see enhancements, particularly at the street intersection and surrounding landscaping (Ref 1).
This park is a popular destination, attracting kids and families from all over the region (Ref 3, video). Importantly, it meets the Americans with Disabilities Act (ADA) standards, ensuring accessibility for everyone (Ref 5).

The schoolyard at Reginhard Primary School in Reinickendorf faced persistent challenges, often becoming unusable due to poor drainage. After rainfall, water would pool, leaving the yard submerged and inaccessible to the 400 primary school pupils. Even in dry weather, the schoolyard was far from ideal: a lack of play equipment made it uninviting, and in summer, the area became excessively hot, offering little comfort or shade. Both children and the school community, including teaching staff and parents, voiced a strong desire for improvement.
Adding to the urgency for redesign, Berliner Wasserbetriebe imposed a discharge restriction, requiring rainwater to be managed on-site. This led to a comprehensive transformation of the school grounds. Large areas were unsealed, allowing water to seep naturally into the ground. Underground seepage systems were installed to enhance drainage, and the redesign introduced green spaces, a school garden, and near-natural play and exercise areas. These changes not only resolved the flooding issue but also created a more inviting and sustainable environment for students.
The focus on ecological and sustainable design improved the microclimate, providing cooler surroundings and enabling outdoor breaks filled with activity and fresh air. The redesign transformed the schoolyard into a vibrant space that meets the needs of both children and the environment.
This project was funded by the Berlin Programme for Sustainable Development (BENE Umwelt) and financed by the European Regional Development Fund (ERDF). (Ref. 3; Ref. 4)

The Digital Hub, a campus in Dublin 8 offering 49,000 sq. ft. of office, studio, and workspaces for small businesses in technology, creative industries, social enterprises, and artisans, has partnered with Pocket Forests to establish Ireland’s first urban native tree nursery. Located on The Digital Hub campus, the Pocket Forests Tree Hub will grow native Irish trees, including birch, rowan, and alder, to support the planting of over 600 trees throughout Dublin 8 and beyond.
As Dublin 8 district faces a noted lack of green spaces and low tree density, as highlighted by the Mapping Green Dublin project from University College Dublin and local groups, the Tree Hub is set to address this gap. This innovative initiative aims to improve the local natural environment and bolster biodiversity in a rapidly urbanizing area.
Pocket Forests, co-founded in 2020 by Ashe Conrad-Jones and Catherine Cleary, is inspired by the Tiny Forest concept, which brings diverse native plants to small urban plots. Using permaculture methods, Pocket Forests regenerates depleted soil and creates diverse micro-forests on plots as compact as six square meters. This approach, which enriches soil and encourages biodiversity, has a unique capacity to transform urban areas into lush, green spaces, contributing to improved air quality and local ecosystems.
The Covid-19 pandemic has underscored the importance of access to nature for well-being, and The Digital Hub offers an ideal location for this first-of-its-kind urban initiative. The Tree Hub will serve as a valuable resource for greening Dublin 8, promoting community engagement, and fostering a greater connection to nature.
Beyond the nursery, Pocket Forests will run a series of six half-day workshops at The Digital Hub to educate the community on biodiversity, pollination, compost, soil health, and the importance of urban forest ecosystems. The Digital Hub’s Tree Hub boosts well-being, biodiversity, and green space for future generations. (1-5

The Fairy Garden, also known as the WOW Recreational Park, is a distinctive green space located near Diósgyőr Castle in Miskolc, Hungary. Since its opening in April 2020, the park has quickly gained popularity, earning third place in the 2020 Tourism Attraction of the Year award in the professional category. Once a neglected and polluted site with historical significance, the area was transformed by a local entrepreneur. After removing over sixty containers of waste, including hazardous materials, a park was created that harmonizes with the natural environment, preserving existing willow trees and integrating water features fed by local streams. When creating the park, the creators respected the plants of the area to the maximum, not a single tree was cut down, and the fruit trees were also kept.
The park boasts various decorative elements, including a carousel, a garden cinema, and other amenities. However, in September 2021, it was closed indefinitely for renovations. Gábor Vaszil, the lessee who had rented the land from the Miskolc municipality, intended to purchase the property for further development. Despite initial support from the local government, the transaction was halted due to concerns raised by the regional Water Management and Protection Authority regarding the protection of Miskolc's drinking water resources. Their ongoing investigation has delayed any further decisions about the sale or the future of the park. In the meantime, the garden remains open to the public for leisurely walks, similar to other municipal parks in Miskolc.
(Ref.1-4)

The Santa Gilla lagoon, a crucial wetland in the Cagliari metropolitan area of Sardinia, has been the focus of several interventions aimed at restoring and preserving its natural and socio-economic functions. The overarching goal of these projects is to rehabilitate the lagoon's ecosystems, improve public accessibility, and promote sustainable economic activities such as eco-tourism and fishing. One significant intervention is the restoration of pedestrian and cycling paths around the lagoon, managed by CACIP (Consorzio Industriale Provinciale di Cagliari) in collaboration with the Metropolitan City of Cagliari. With over two million euros in funding, this project aimed to recover the original profiles of the lagoon's embankments, while removing waste from the area and enhancing the paths for non-motorized mobility (2). Another crucial development was the legal action taken by the Corpo Forestale (Forestry Corps) in 2020 to address illegal constructions and pollution along the lagoon's eastern shores. This action included the sequestration of areas used for illegal fishing activities, where hazardous materials and waste were improperly disposed of, leading to environmental degradation​ (1). Furthermore, environmental groups have made continuous efforts to address illegal dumping near the lagoon, particularly along the SS 195 highway. These groups have actively sought the intervention of local authorities to initiate cleanup operations and enforce regulations against illegal waste disposal​ (4). The projects were implemented primarily to address the significant environmental hazards facing the Santa Gilla lagoon, including pollution from illegal dumping, habitat degradation due to unauthorized constructions, and the overall loss of biodiversity. These activities also aimed to mitigate the socio-economic risks posed by the deteriorating environmental conditions, such as the decline in tourism and sustainable fishing practices (1,2,4).

On a small roadside green space in Berlin, a tiny forest was created. The idea of Tiny Forests comes from Japan, there are already some in France and the Netherlands, and since 2020 also in Germany. Tiny forests are constituted of trees planted densely next to each other in small spaces, such as tiny green roadsides.
At Oderstraße, the NGO TinyForestBerlin planted an even smaller forest, a nano forest on a roadside where trees cool down the area, filter the air and create a habitat for insects. Trees in urban areas loosen up the dense and degraded soil, allowing it to store carbon and let rainwater properly seep into the ground to prevent urban flooding. Roadsides are hardly utilised or recognized in their environmental potential, such as hosting a nano forest. Projects like the one implemented by TinyForestBerlin present an approach for collaboration between the district and civil society, as the district's park department lack the capacity to maintain small roadsides. The project at Oderstraße is the first official tiny forest in Berlin, as a previous planting campaign in Friedrichshain was not entirely legal due to missing approval of local authorities. (Ref. 2; Ref. 5)
The TinyForestBerlin association has set itself the goal of creating such small nano-forests all over Berlin. An ambitious project that aims to enrich the city's green spaces and contribute to improving the urban climate. The trees planted on Oderstraße are one of many smaller planting projects that are spread throughout the city on public as well as private land. (Ref. 3)

The environmental and public space recovery project around the Bazurto Market in Cartagena is a comprehensive initiative aimed at addressing the severe environmental degradation and chaotic urban conditions in this vital area of the city. The Bazurto Market, one of Cartagena's most important economic hubs, had experienced increasing levels of disorganization, pollution, and public health risks due to the encroachment of informal vendors and improper waste management (ref 1,2,5). The primary goals of this project are to restore the ecological health of the Caño de Bazurto and the Ciénaga de las Quintas, enhance the quality of public spaces around the market, and improve the overall urban environment (ref 1). Project activities included removal of waste from the surrounding water bodies, installation of protective barriers along the Ciénaga de las Quintas, and the planting of trees to revitalize green spaces (ref 3,4). Emphasis was placed on planting of a variety of tree species, such as Guayacán Amarillo, Ceiba, and fruit trees like níspero and mango. These efforts were concentrated in areas around the Bazurto Market, where green spaces had been neglected or overtaken by informal commercial activities. The project also included the restructuring of vendor locations and public spaces to reduce congestion and improve the flow of both pedestrian and vehicular traffic (ref 5). Educational campaigns were conducted to encourage better waste disposal practices and enhance community involvement (ref 1).

The project for Tricentennial Park involves a series of improvements aimed at enhancing its overall infrastructure and appeal. Among the planned upgrades is an enhancement of the pavilion, along with the addition of other site amenities (Ref 1). A lake is also being created as part of the project (Ref 2). Currently, work is underway on phase two, which includes landscaping, the construction of a group picnic pavilion, walking trails, a parking area, and even a misting machine to provide relief during hot weather (Ref 2).
One of the key highlights of the project is the opening of a new playground in 2024, featuring a unique design. The park is laid out in a figure-eight pattern, and a sign within the park highlights its recognition for following “best practices in youth fitness,” encouraging children to stay active through sliding, swinging, spinning, climbing, brachiating, and balancing (Ref 2). This park is the first in Mobile designed exclusively for passive use, without ball fields, providing a space for families and individuals to enjoy the playgrounds (Ref 4). The park fosters social interaction, allowing children to build friendships and create lasting memories while spending time with their families (Ref 4). The park also boasts beautiful scenery, adding an aesthetic dimension to the overall experience (Ref 2).
Tricentennial Park is part of the larger Three Mile Green Trail, a 6.5-mile linear park. A one-mile segment of the trail is located within Tricentennial Park. The trail will be expanded east to MLK Boulevard and west to Bush Park by 2024 (Ref 1).