Raise public awareness

Coastal erosion is a well-known consequence of climate change, driven by rising sea levels, extreme storms, and powerful coastal surges. Dollymount Strand, a popular spot for bathing and water sports in Dublin, is particularly vulnerable. Located on North Bull Island and managed by Dublin City Council, the area is part of several protected zones, including a Special Area of Amenity, a Special Area of Conservation, a Special Protection Area, a Ramsar Wetland, a Natura 2000 site, and the UNESCO Dublin Bay Biosphere. To help mitigate this issue, Dublin City Council has implemented a solution that works with, rather than against, natural processes.
During late summer and autumn—particularly following high tides, warm weather, and storms—a type of seaweed called Ectocarpus siliculosis naturally accumulates along Dublin Bay’s beaches. Instead of removing it, the council allows the seaweed to remain, recognizing its essential role in maintaining the beach’s rich biodiversity. Ectocarpus contributes to the health of the coastal ecosystem, supporting marine life and enhancing the natural resilience of Dublin Bay. (1.2)

This project, implemented in several schools across Fort-de-France in 2018, focuses on creating arboretums in schools to educate children about Martinique's native natural heritage and raise awareness of biodiversity loss. An arboretum is a curated collection of trees selected for scientific, conservation or public enjoyment.
The initiative, led by the Martinican National Botanical Conservation, is supported technically by the municipal landscaping department and administratively by the city of Fort-de-France and the Martinican School Rectorate. It includes three main activities: a seminar on Martinique's rich yet fragile botanical heritage, an excursion into a forest, and a tree planting event at schools featuring native or endangered plant species. The program has reached at least six schools in and around Fort-de-France.
(Ref. 1,2,5)

San Borja has 1,347,000 square metres of green areas, equivalent to 12 square metres of green space per inhabitant, one of the highest ratios in the capital (1, 2). In total, there are 75 parks within its jurisdiction (1, 3). However, in recent years it has consolidated its role as a metropolitan urban centre and has become denser with new multi-family construction projects replacing traditional single-family homes with gardens (2). As a result, tree cover has decreased, affecting the creation of shaded areas and air quality, putting the health of residents at risk (2). Nevertheless, this municipality has reaffirmed its participation in the Global Covenant of Mayors for Climate and Energy, committing to implement policies and take measures to reduce (or limit where appropriate) greenhouse gas emissions and prepare for the impacts of climate change, as it is vulnerable to heat waves and droughts, as well as high wind and thunderstorm hazards and fires (1). Thus, since 2014, 56,000 trees have been planted, which is one tree for every two residents in the district (2). The mitigation programme includes 40 measures, including the creation and conservation of green areas, which involve planting trees to create urban forests to help regulate temperature, prevent heat waves, improve CO2 absorption, and preserve endemic species (1). In addition, the programme promotes the use of organic farming practices and the propagation of plants using natural methods (1).
One of the sectors where there has been the most progress is Sector 12, with 31% of the green areas created (3). Within this sector, the district is planting and creating an urban forest within the premises of the Army Headquarters, better known as ‘Pentagonito’. Its objective is to educate neighbours and promote greater environmental awareness (3, 4, 5).

The City of Gothenburg's policy for park and street trees was updated in 2016 and has the overarching aim to maintain and develop the ecological, historical, social and economic values of the city's trees and tree environments. Trees are described as having ecological, historical, cultural and economic values. They can provide ecosystem services such as habitat and biodiversity, air quality improvement, flood prevention, heat mitigation, recreation and aesthetic values [Ref. 1].

The policy applies to all trees in the streets, squares, and parks within the municipality but not to natural environments such as forests at the city's edge. Further, the policy is mostly relevant for municipality employees whenever they make decisions that will affect trees or tree-covered areas, such as zoning/planning and construction projects. Other actors in the city, such as private real estate or construction companies, are not required to follow the policy but are encouraged to consider it. The policy formulates sub-goals and guidances regarding the preservation of existing trees (prioritising large and old ones), the planting of new trees, the maintenance of trees, protection during construction work and finally, the taking down of trees, including compensation measures. The policy's direct effects is an expected improved management of trees within the municipal organisation. This may have further indirect benefits in the form of increased ecosystem service provision when the policy affects other projects [Ref. 1, 2].

In Lisbon's Areeiro district, Urbem, a non-profit organization, is leading the creation of a 2500m2 Miyawaki mini-forest in Casal Vistoso Urban Park. This initiative involves densely planting native species to rapidly establish a diverse, self-sustaining forest ecosystem. Supported by the Lisbon City Council, the project aims to enhance urban biodiversity, improve air quality, and contribute to climate resilience. Volunteers from the local community play a crucial role in every stage, from preparing the land to planting and maintaining the forest. Despite initial challenges, such as a 40-50% plant survival rate, the forest is expected to become self-sustaining within three years. The project focuses on environmental restoration and seeks to engage and educate the community, fostering a sense of ownership and connection to these new green spaces (Ref 1; Ref 2; Ref 3; Ref 4).

Peru is classified as one of the 17 most biodiverse countries in the world, so biodiversity and its conservation are important national aspects (2, 3, 4). However, one-third of the native flora currently assessed is threatened (3, 4). Thus, the creation of the Botanical Garden represents the opening of a space to learn about, study and conserve the national flora by strengthening Peruvian society's awareness of its value (4, 5).
The Botanical Garden is in its early stages of development and is not open to the public yet, but its development and implementation have the support of several associations such as the British Council, Concytec, the Ministry of Environment, the Ministry of Culture, the British Embassy and the Asociación Pro Jardín Botánico Nacional de Lima (1). The initiative has been incorporated as part of the Bicentennial City project of the Ministry of Environment in Ancon (6).
The implementation began in 2021 on a 10-hectare plot of land donated by the Universidad Nacional Agraria La Molina (UNALM) in Lima (3), and it will be carried out in several stages. An Inter-Institutional Committee has been established to oversee its development (3). In addition, it is planned to extend the idea of botanical gardens to other regions of the country, creating a network that will allow the conservation and study of flora in different contexts (4, 5), as the purpose of its development is to condense in one place all the biological richness of the country (7).
With this project, they aim to strengthen the conservation of plant species, the generation of inputs for education, and as a source of cultural spaces and for the well-being of its citizens, among others (1, 2). The Botanical Garden is intended to house a select sample of the more than 25,000 species in Peru, emphasising those that are endemic, threatened and of social, cultural and economic relevance (8).

In September 2018, a new didactic itinerary on invasive alien species was inaugurated in Cagliari's botanic garden. The initiative has been initiated in order to raise awareness and share important legislative and scientific knowledge on the matter (Refs. 1, 2 & 3). It has been curated by Life ASAP, which is an EU co-funded project focused on targeting the introduction of animal and vegetal alien species in Italian territory (Refs. 4 & 5). The initiative in the botanic garden focuses on a 13-pannels pathway through the garden, which will guide visitors towards the discovery of the issue of the introduction of alien invasive species on the territory. The goal is to attract the population's attention to the topic through a sensorial and interactive experience. In fact, the panels are easy to understand, colorful, and accompanied by explanatory images and bas reliefs. Children and youngsters can also participate in a laboratory called "the alien's identikit," according to which they have to recognize the newly learned alien species around the garden (Refs. 1, 2 & 3). This Path represents the first (and only) permanent space dedicated to biological invasion processes and invasive alien species in the network of Italian Botanical Gardens. (Ref.2).
Therefore, the project, in collaboration with the University of Cagliari, promotes education for all ages on the risks and consequences of such an underestimated problem and aims to educate citizens on how their actions can prevent the phenomenon from spreading further (Refs. 1, 2 & 3).

The Gothenburg Botanical Gardens are replacing and expanding their old greenhouses, which had serious flaws in terms of work environment, climate and accessibility [Ref. 1]. The new greenhouses will be divided into sections with a diverse set of climates and preserve over 4000 species, some of which are extinct in their natural environments [Ref. 1-2]. A new visitors centre is also being built and will have ameneties such as a café, a shop, toilets and places to sit, which will improve the Botanical Gardens' ability to invite the public and educate about biodiversity. The greenhouse project aims to strengthen the Gardens' national and international standing within research and education [Ref. 4]. A significant share of the visitors today are domestic and international tourists, and the new greenhouses aim to promote that further. The Botanical Gardens are owned by the regional government (Region Västra Götaland), which is funding these new project activities. The construction is ongoing and plans to finish in 2028, but the greenhouses will not be fully open to the public before the inauguration in 2030. The project has an investment budget of about 56 million EUR, and will, in total, occupy 6600 sqm [Ref. 1-3].

The mangrove area of Morne Cabri, located in the municipality of Le Lamentin and sharing the bay of Fort-deFrance, is the largest mangrove area in Martinique. Since 2011, the municipality has led efforts to understand and better manage the area (Ref 1). The natural regeneration of the mangrove is threatened by fresh water run-off (from waste and rainwater), invasive species and pollution. However, it is an important protection against extreme weather events, operates as a carbon sink for the island and provides recreational activities (Ref 1). The municipality has led several initiatives supported by volunteers, local businesses, national subsidies and private donations (See: Ref 2, 3, 4, 11).

The Estufa Fria de Lisboa (Cold Greenhouse of Lison), located on the south-facing slope of Park Eduardo VII in Lisbon and part of the city's green corridor (Corredor Verde de Monsanto) aims to integrate leisure, culture, and education opportunities to promote plant biodiversity conservation within a sustainability framework (Ref. 1). Cold Greenhouse refers to the fact that there is no heating system on the premises, and it also refers to one of the three gardens (Ref. 5). The greenhouses were created in an old quarry dedicated to rock extraction, and these lush gardens are now comprised of three distinct greenhouse environments: cold, warm, and sweet (Ref. 1). These greenhouses collectively house over 300 plant species from diverse continents, including rare species (Ref. 2).
The garden's design integrates natural water features, with watercourses and waterfalls and statuary elements. Since the opening of its Interpretation Center in 2016, the Estufa Fria has expanded its role as an educational resource, hosting exhibitions and activities related to botany and urban green structures. Since 2016 the project has been focused on its educative agenda with the development of a set of pedagogical resources for preschoolers, students from ages 6 to 12 years old and their teachers, and with guided visits. (Ref 1, 2)