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The Ecological Education Center (EEC) is a nationally recognized institution committed to promoting awareness and sustainability through its environmental education programs in Mongolia. As the only organization in the country dedicated to providing such programs, the EEC operates under the National University of Mongolia (NUM) and was founded in 1957 as the "Central Station of Young Naturalists". With over 60 years of experience in environmental education, the EEC offers its programs not only to NUM students but also to children of varying ages. Since 2011, the center has developed and introduced various cognitive-based environmental training programs, providing visitors with interactive learning opportunities that takes them through different learning stations. The EEC has several facilities to support the learning experience, including a nature experience garden, a greenhouse, and a small zoological museum. The nature experience garden is continuously enriched with new tree species each year, and as a result, it is now home to over 3500 trees and bushes of 30 different species. In addition to its educational programs, the EEC also provides advice on gardening and plant care to further promote environmental sustainability. (Ref. 1, 2, 3)

Jin wellbeing is a senior-oriented lifestyle complex in Bangkok, Thailand, which comprises residences, commercial units and hospitals. The first phase of the development has been completed in 2020. This phase included five residential buildings with senior hospitals, wellness centres and green spaces that cover over 40% of the site. The project aims to create a sustainable living environment while enhancing both the physical and mental health of the people through nature with the “Community of Revine Forest” concept. The main interventions include an urban forest, a therapeutic garden, a community farm, an outdoor exercise area, and a multipurpose area. Ecologically sustainable design has been integrated into the planting strategies and water management to create a resilient ecosystem, mitigate flood and improve water retention capabilities of the area for irrigation purposes. (Ref. 1,2,3,4,5)

The Upper Kinta River Basin covers an area of about 31,470 hectares above Ipoh City, and it is the main water catchment resource for the residents of the city and its surrounding areas. The Kinta river basin is now threatened by land erosion, land development, improper sewage treatment and irresponsible waste discharges (Ref 1). In 2021, a pilot project was implemented near the city of Ipoh along the SimpangPulai Highway and experimented with river bio-engineering techniques to reduce soil erosion and subsequently prevent sedimentation downstream (Ref 3). The pilot site was established as part of the Mainstreaming Biodiversity Conservation into River Management project, which focused on applying nature-based solutions for mainstreaming biodiversity into riverine landscape planning and watershed management in Malaysia. To provide seedlings for the bio-engineering project and also other related initiatives, a nursery was established in the indigenous Pawong Orang Asli Village. The nursery also provided additional income for communities (Ref 4). The pilot was developed with the expectation to be upscaled and replicated in other parts of the UKB, especially along the SimpangPulai Highway. (Ref. 6)

As early as 2010, the then authorities of Malaysia announced plans to transform certain Malaysian cities into green cities. Motivations behind these actions focused on addressing environmental challenges such as carbon emissions, high temperatures, and a reconnection with nature. One of the cities where green ideas were to be implemented was Putrajaya, located 25 km south of Kuala Lumpur (Ref 3). As this is a very complex project, the initiative was being led by the Perbadanan Putrajaya (PPJ), which is a local authority that administers the Federal Territory of Putrajaya and is under the Federal Territories Ministry of Malaysia. In transforming Putrajaya into a green city, PPJ undertook 38% of its area to be developed into parks, lakes, and wetlands while the rest is reserved for government offices, commercial and residential development, public utilities, and amenities (Ref 1). Green actions involved the creation of a wetland (the largest constructed freshwater in Southeast Asia), the implementation of an Urban Farming Programme and Rooftop Farming programmes, as well as large-scale tree planting (Ref 2, 3). PPJ aims to transform Putrajaya into a green city by 2025 including Putrajaya Inter-Parks Ride, Pedestrian Walkways and Bicycle Lanes. Putrajaya’s efforts in the implementation of these green initiatives have received numerous awards & recognitions (Ref 3).

The project “Enhancing climate resilience of Gorakhpur by buffering floods through climate-resilient peri-urban agriculture” is part of the Asian Cities Climate Change Resilience Network (ACCCRN) and financed by The Rockefeller Foundation. It was implemented by the Gorakhpur Environmental Action Group (GEAG) from June 2012 to May 2016 to demonstrate how ecosystem services generated by peri-urban agriculture can positively address the impacts of climate change in Gorakhpur, a city located in eastern Uttar Pradesh, India (Ref 1, 2). To be more specific, it was set out to “demonstrate flood risk mitigation through the preservation and improved management of open spaces by strengthening agriculture-based livelihoods in peri-urban areas” (Ref 1, 2). The main project outcomes were focused on conserving peri-urban agricultural land areas as they serve to climate-proof cities and build resilience, enhance the livelihood and food security of vulnerable groups in peri-urban areas, as well as establish sustainable and climate-resilient models (Ref 1). Activities like baseline surveys, field interventions, climate resilient extension systems, the adaptation of practices and research and advocacy were carried out to achieve the project outcomes (Ref 1). Additionally, the project has successfully improved the soil and water quality and developed special measures for waste management (Ref 1, 2, 3).

A new nature sanctuary was unveiled at the Kingfisher Wetlands, Gardens by the Bay, in Singapore in 2021. Before the sanctuary was created, the original site was a popular bird-watching spot for the birding community and nature photographers. However, it was isolated and "often missed by the general public". The new Kingfisher Wetlands was thus developed with the aim of enhancing and enriching the Gardens, as well as providing new nature areas for visitors to explore. The place is a new hotspot for the flourishing diversity of exotic flora and fauna. Furthermore, the project helps in mitigating climate change through mangrove plantations. Over 200 native true mangrove trees and mangrove associates have been planted, contributing to sustainability by storing “blue” carbon. Additionally, the project actively supports research into blue carbon science. This contributes to the country's effort to transform Singapore into a City in Nature by weaving nature more intensively into the urban fabric. [1, 4]

Ecuador is considered one of the most biodiverse countries in the world (one of the 17th most diverse), due to the high diversity of their natural species. The country has around 23.056 taxonomic species of animals and plants reported, which constitutes the 6,1% of all species reported worldwide. (6) Quito, the country's capital makes no exception and is considered a biodiversity hotspot. In recent years, urban expansion has had a detrimental effect on the environment and the city’s ecology. All of these actions exacerbate the stresses on the different ecosystems, contaminate water sources and networks, and put the city’s capacity to supply ecosystem services at risk. To respond to many of these challenges the municipality of Quito initiated in 2020 a nature-based solution program under the EU framework of Clever Cities. (1) The project intends to position nature-based solutions as a means to improving public health, social cohesion, citizen security and increasing economic opportunities in those areas. (3)

The Jerusalem Forest is located southwest of Jerusalem and is the green lung of the residents of Israel's capital. The forest has a variety of trees, flowers and wildlife, remains of ancient farming implements and burial caves (2). The forest was planted in the 1950s in an attempt to increase the green cover and natural biodiversity of the area. However, due to intensive urban development including road constructions and energy grid installation and forest fires the size of the forest has been shrinking once covering 4 700 000 m2 to the current size of 1 250 000m2. In 2016, a non-governmental green organisation initiated the renewing of the Jerusalem Forest with the aim to preserve the forest, halt its decrease, secure its sustainable maintenance while involving the public in the conservation efforts increasing their environmental knowledge about their local habitat and support nature stewardship through the application of a community forest model. (1,2,8)

The Anderson Road Quarry, once a vacant 40-hectare site is getting transformed into a sustainable residential neighbourhood while ensuring climate resiliency and low environmental impact in Hong Kong. The site will supply housing for 25,000 people. In addition to this, the city is employing a wide array of adaptive and resilient approaches including saving around 3,000 metric tons of CO2 annually, helping the city live up to its 65% to 75% carbon reduction goal by 2030 set in Hong Kong Climate Action Plan. [1]

As a result of a ReefFix Project, an Integrated Coastal Zone Management (ICZM) Coral Reef and Mangrove Restoration and Watershed Management Demonstration programme, the Three Bays Marine Protected Area (MPA) and associated Integrated Coastal Zone Management (ICZM) Plan have been established in Haiti (Refs. 4, 5 and 7). Only the second MPA to be established in the country, the Three Bays MPA includes the bays of Limonade, Caracol and Ft. Liberté (the administrative capital of the Nord-East department of Haiti), as well as the Lagon aux Boeufs. As summarised by Ref. 8, the establishment of the MPA and ICZM "will help protect the mangroves, eel grass beds, reefs and habitats housing important fisheries that are crucial for providing livelihoods to nearby communities. It will also help protect the area from storm surges and provide local communities with ecosystem services such as carbon sequestration, tourism value and more". Additionally, the MPA will afford protection to numerous threatened species, "including sea turtles, whales, manatees and migratory birds" (Ref. 8).