Measurements of biophysical aspects of the NBS (e.g. temperature, water flow)

Due to the decreasing number of mangrove forests in the inner Gulf of Thailand, WWF Thailand aspires to protect the remaining mangroves. Supporting this objective, WWF worked with Royal Thai Army (RTA) and several other partners to establish the Bangpu Nature Education centre. The centre is located on the land of the army, which contains one of the last indigenous mangrove forests in the inner Gulf of Thailand area. The education centre offers knowledge about mangroves, mudflat ecology and biodiversity through educational programs tailored for different visitor groups. Apart from the main visitor center and auditorium, the educational centre also has an outdoor area that includes an existing mangrove forest, salt marshes and mudflats with natural trails, observation towers and canopy walkways. The natural area is home to various native plants and wildlife, especially local and migratory birds. The site harbours 65 floras and 60 benthic faunas, and between 8,000 and 15,000 birds are estimated to use the site annually. Part of the area is an abandoned shrimp farm, waiting for nature to restore
(Ref.1,2,8).

Danang, a prosperous port city in Central Vietnam, is home to a population of 1.2 million inhabitants. Throughout the years, the city went through several boats of urbanization, which allowed its economy to thrive but its environment to be negatively impacted. The city's green areas were reduced, leading to socioeconomic and environmental impacts, including loss of landscape and more energy consumption. (4) Furthermore, the city became vulnerable to natural disasters, which caused destruction and uprooting of trees and vegetation and aggravated soil erosion. (3,4)
To counteract many of these issues, the municipality of Danang initiated several greening activities that included the creation of parks, the greening of street alleys, and the greening of schoolyards as a supporting mechanism for one of Vietnam's nationwide programmes "Plant 1 billion trees in the 2021 - 2025" (5). Recently, the municipality planted 900 Than Mat trees (one of the typical flowering plants of Son Tra Peninsula and scientifically known as Millettia nigrescens Gagnep) along the route from Green Lake to Bai Bac, in the Tho Quang ward, in February 2023. The activity also aims to have an educational role as tree protection is highlighted and build a clean and green city environment (6).
So far, as of February 2023, as part of the 1 billion tree programme, 15,000 trees have been planted in Danang. (2)

Jakarta City in Indonesia deals with inundations during heavy rain periods (1,2). To overcome such flooding issues, the Central Jakarta City Government, through the Parks and Forests Sub-Department, planned and implemented four bioswales and one rain garden at five locations in Central Jakarta City (1,2,3,4). This project was aimed at saving groundwater through stormwater management and minimizing puddles around the site locations (1,4). The Head of Central Jakarta City Parks and Forests Sub-Department, Mila Ananda, conveyed this project completion in 2021 (1,2). After the successful implementation of this project, the Jakarta City Government further plans to identify similar more locations prone to inundation and implement such green infrastructure initiatives in other parts of the city (1,2,3).

The frequent and severe floods that many cities in Lao PDR have been experiencing are causing a significant impact on the livelihood of local and vulnerable communities. To address the issues of flood and climate events, the Green Climate Fund has provided funding for the Lao DPR government to initiate the 'Build Resilience of Urban Populations with Ecosystem-Based Solutions in Lao DPR' project. The Ministry of Natural Resource and Environment of Lao, in collaboration with other related departments, universities, and provincial governments, is leading this project. The funding was approved in 2019, and the project is set to conclude by 2025. The project consists of four sub-projects, which will be implemented in four cities, including Paksan, Vientiane, Savannakhet, and Pakse. One of the sub-projects involves rehabilitating the Nong Peung wetland in Paksan city, which currently has no management plan and is negatively impacted by human activities and has been degraded in certain aspects. Natural vegetation has been lost in parts of the wetland, invasive alien plants are encroaching, and the natural water flow has been disrupted in places. The objective of this project is to develop a comprehensive management plan for Nong Peung wetland and implement various nature-based solutions to improve the ecosystem. This will involve removing invasive alien plant species, eliminating human-made barriers that obstruct natural flow, and planting appropriate native species. Currently, the project is in the planning stage with relevant stakeholders to determine the physical implementation site. (Ref.1,2,3)

IKEA opened its doors in Budapest in 1990. This was the very first store in Hungary. Twelve years later, the store announced that it would install a green roof. The main purpose of the green roof was to compensate the locals for the loss of green space. The green roof was intended to create a biologically active surface that fits in aesthetically into the suburban landscape and provide a home for animals such as pollinators. The green roof, built in 2002, was covered with a Sedum carpet. In 2014, when the original Sedum vegetation died out, the green roof was completely removed. Then, during the autumn 2014 planting, four types of Sedum shoots were seeded. This was followed in the spring of 2015 by the seeding of herbaceous dicots seed mixes, which contained seeds of roughly 50 plant species. The vegetation is regularly monitored by ecologists: in 2021, more than 160 different taxa were recorded, including spontaneously occurring species. The green roof is closed, not accessible to the public, however tours are occasionally organized for professionals [3] [6] [8] [9] [10] [11].

Located in downtown Bandung, with an area of 3.8 hectares, Babakan Siliwangi (more commonly known as Baksil) has been declared The World City Forest on September 27, 2011, by the United Nations Environment Programme (UNEP). It is part of the green belt of Bandung and is a place of recreation for residents and features a canopied walking path. Declaring the forest as part of the urban green belt of the city has not been an easy task for the management team of Baksil as in 2011, there was a plan to build privately-owned multistories building at the site, which would greatly reduce the environmental quality of the area. In response to this challenge, the team initiated a series of awareness actions as well as a planting campaign to raise the profile of the forest, as well as to address several environmental challenges such as emissions reduction, noise pollution, soil degradation, and fauna and flora conservation. The intervention proved to be very successful as it established the Baksil forest as a new public space that enabled people to get to know and better appreciate their city forest. Several communities have been holding events in this area to activate the idle space, while inviting more people to interact with the forest, making it to be invaluable for the local community and the city of Bandung. (1,2,3,4,5)

Revitalizing Informal Settlements and their Environments (RISE) is one of the pilot projects carried out in the Batua neighbourhood (1.9 km2 area) of Makassar City (119 km2 area), province of South Sulawesi in Indonesia, which was commenced in 2017 and concluded in 2022 (1,2,3). Batua neighbourhood (six settlements of around 1,600 people) was the first demonstration site for this project which was completed in 2019 (3,4,5). The main challenge was that many households who lived in informal settlements lacked access to centralized urban infrastructure and faced threats from climate change (3,4). The project was proposed to reduce the impact of climate change on marginalized communities in Makassar by providing localized, water-sensitive interventions that addressed issues related to sanitation and water management (1,2,3,4). The introduction of water-sensitive solutions enabled targeted communities to recycle wastewater and rainwater, restore natural waterways, improve water quality, and reduce vulnerability to flooding (3,4). The RISE program initiative integrated nature-based solutions like wetland restoration, bio-filtration gardens (the process of using beneficial bacteria to clean water on a molecular level to remove contaminants), stormwater harvesting, filtration paths and new sanitation structures to improve wastewater management and diversify water resources through community-driven development (1,2,3,4).

Indonesia’s peatlands are among the most vulnerable ecosystems on Earth and also have significant potential as carbon sinks (1,2). Fire risk in Sumatra's peatland areas is high due to canals that were dug for logging and plantation development (1,2). The Sumatra Merang Peatland Project was thus launched to restore the area as the massive forest fire in 2015 destroyed thousands of hectares of biodiverse tropical forest (1). This project includes restoring more than 22,900 hectares of peatland rainforest in the Merang region, located within Musi Banyuasin Province, South Sumatra in Indonesia (1,2,3). The project targets the Merang biodiversity corridor, one of the largest and deepest peat swamps in South Sumatra, which protects an area more than 3.5 times the size of Manhattan (New York City) (1,2,3). This project is a part of the Althelia Climate Fund and was implemented on the ground by Indonesian Companies named PT Global Alam Lestari (GAL) and Forest Carbon (1,2,3,4,5). The project aims and contributes to climate change mitigation and ecosystem resilience by peat rewetting and reforestation, protecting biodiversity and working with local communities to build and improve livelihoods (1,3).
The first stage of the project is considered completed and is considered to achieve positive impacts already, but it still aims to upscale certain activities until 2025 (3,4,5). The total lifetime of the project extends to 2062 (4).

The Sustainable Kazakhstan Research Institute (SKRI) at Narxoz University has developed "phytocapture," an innovative solution to deal with airborne dust. A phytocapture barrier is a chain of green spaces around a plant or mine, precisely calculated in height and width, to capture dust and organic compounds from production. This solution can capture 40% of particulate matter, including fine particulate matter, which otherwise settle in people's lungs, causing pulmonary and cardiovascular diseases. (1,6) To demonstrate the solution's applicability, SKRI proposed a phytobarrier project to AK Altynalmas JSC for the Aksu Goldmine. The Aksu field was founded in 1939, and soon the miners' settlement was formed around it. The formation of the tailings pond is closely connected with the production process, which began in 1951 and until now is produced by feeding through the pulp line the pulp from the gold concentration plant of the mill. The existing measures to reduce the negative impacts of tailing management facilities, such as irrigation of technological roads of the tailing management facility, as well as compliance with the above-ground stockpiles in the sections, do not fully solve this problem (5). To tackle this issue, the proposed phytocapture project utilized 3D computer modelling and digital technology to design a vegetation barrier near the tailing dump on both sides and resulted in the plantation of 1,400 seedlings of elm, silver sucker, and maple at a distance of 1.5 kilometers. The project was implemented at two production sites of the company in 2022 and is also being implemented in other projects. In 2022, the joint project was recognized by the United Nations Economic Commission for Europe (ECE) as a best practice (1,6).

The rehabilitation of the Klang River or Selangor Maritime Gateway (SMG) is a project that was put into effect in 2018 by the Selangor State Government. The project aimed to transform the Klang River, considered the most polluted river in Malaysia, into a beautiful and clean river which can be a new source of economic growth in the state of Selangor, Malaysia. The river has been polluted with trash, plastic bottles, and sewage, which harmed the vegetation and the aquatic ecosystem (1). The project proved to be highly complex as it included rehabilitation of the river through several green solutions such as the creation of a community park, the conservation of various species of mangroves, and the implementation of riverfront greens as a measure of slope protection. The intervention is set to be developed on an area of 56 Km along the Klang River corridor. It is expected to promote and support the integrated management of river basins with particular emphasis on ensuring that biodiversity and wetland conservation and community considerations are incorporated into river basin management that includes the development of eco-city (3,5,6). Furthermore, the project intends to conduct an awareness campaign about river cleaning and rehabilitation activities to educate the public on the importance of rivers and the environment in our lives while consequently highlighting the critical state of pollution faced by the River (1).