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Kempegowda International Airport Bengaluru (KIAB)'s new terminal 2 is an environmentally friendly initiative that uses innovative methods to maintain ecological sustainability using native plants (Ref 1, 2). The terminal was built on four guiding principles: technology leadership, being a terminal within a garden, environmental and ecological stewardship, and a celebration of Karnataka’s rich heritage and culture. Through the "terminal within a garden" project, the aim was to create a calming and relaxing space for passengers using greenery for visual appeal as people pass through the airport (Ref 1). Hanging gardens, trees, and green walls are the primary nature-related features included in the terminal and an outdoor greenbelt around the terminal. The airport uses native plant species, including trees, flowering plants, and shrubs (Ref. 2).
The terminal area also includes water bodies, cascades, and miniature waterfalls to maintain the natural atmosphere. The terminal also has extensive rainwater harvesting and groundwater recharge facilities (Ref 1). Other sustainable goals in the terminal area include energy saving, water conservation, waste management, and pollution control measures (Ref 2).

The Rajakori lake rejuvenation project aimed at reviving an existing lake using a natural and sustainable treatment system, the "Scientific Wetland with Active Biodigester (SWAB)". SWAB technology uses a two-step process involving (i) a sedimentation tank equipped with a biodigester and (ii) a constructed wetland system. The untreated sewage waste is passed through this two-step process that uses microbes and plants to reduce pollutant levels. The project also involved redeveloping the public space around the lake for community use (Ref 1,2). Before 2017, the lake was overfilled with sewage and waste from nearby neighbourhoods due to a lack of proper sewage management. Initiated by the Delhi Government, the project aimed at using low-cost natural methods rather than conventional techniques involving concretized bases and chemicals to treat water (Ref 1, 4). Due to its success and cost-effectiveness, this project now serves as an excellent example for other projects within Delhi (Ref 5).

In 2008, Mahidol University in Thailand announced its revised five-year Green Campus master plan titled 'A Promised Place to Live and Learn with Nature' for its main Salaya Campus. The scheme aimed to promote a green conscience and lifestyle for its students and faculty through sustainable campus developments that consider social and environmental aspects. The university's objectives were to achieve energy conservation, environmental sustainability, and social cohesion and well-being. The main features of the master plan included the creation and maintenance of green open spaces covering at least 70% of the campus premises, optimization of land use, transformation of infrastructure to encourage cycling, creation of outdoor learning, recreational and research areas, and enhancement of local biodiversity. The master plan also covered guidelines and targets for energy consumption, waste, and water management in the campus buildings. The Siri Ruckhachati Nature Park, the university's arboretum, was also redesigned with green and blue areas playing a role in flood management. Following the 'Green Campus' master plan, Mahidol University developed its existing mission further and became an 'Eco University' in 2012 and a 'Sustainable University' in 2021. These two missions focus primarily on reducing energy consumption and waste management.
(Ref.1,2,3,12)

The Kota Damansara Community Forest Reserve is a forest located 10 km west of Kuala Lumpur in the state of Selangor and is the oldest managed forest reserve in Peninsular Malaysia. As the reserve was threatened over the years by plans for clearing and housing development, the community located in the township close to the forest sprang into action to salvage the forest. As early as 2003 an organization called Friends of Kota Damansara was formed to lead a diverse group of concerned individuals, organisations and communities to rally together to vocally defend the forest (2, 3). Efforts to protect and conserve the forest focused on a series of activities such as the development of a biodiversity management plan, awareness-raising activities, educational activities, building capacity activities, and the creation of an ethnobotanical garden to showcase Temuan (local indigenous people) knowledge of plants (1). These efforts were funded with the help of the UN's GEF's Small Grants Programme and led to the reserve being officially gazetted as of 18 February 2010 (Sel GN 398/2010) and being classified as amenity forest, education forest and research forest, making up 3% of land area in the state of Selangor (1, 2). Nowadays, the Kota Damansara Community Forest Reserve Trails is a popular weekend destination for mountain bikers, trail runners and casual hikers (3). Furthermore, the KDCFP has become much more accessible and utilizable by visitors from various categories of societies, besides researchers discovering and documenting a number of species of flora and fauna unique or endemic to the park (1).

To address the mismanagement and illegal deforestation in the Changa Manga forest, the Punjab Government in Pakistan initiated strict actions with the help of the Forest Department between 2014 and 2017. Activities included planting new trees and taking action against illegal deforestation. Over the years, mismanagement and illegal deforestation decreased this woodland by 75% (measured in 2012) (2). The Government of Punjab approved the “Afforestation in Blank Areas in Changa Manga Plantation” project for the duration of three years from 2014 to 2017 aimed at the afforestation of a total area of 200 acres on flow irrigation during 2014-15 and maintenance of afforestation during the two subsequent years (2015-17) (4). Changa Manga Forest is one of the world’s oldest hand-planted forests, dating back to 1866 in Chunian City. It spreads over about 5065 hectares and hosts a wide variety of flora and fauna. The forest is home to 14 species of mammals, 50 species of birds, six species of reptiles, two species of amphibians, and 27 species of insects (1). Some exquisite tree families, such as Sheesham (rosewood). white mulberry and Kikar trees are found in this woodland (2). It also includes a wildlife preserve, which was launched in 2005 by the World Wildlife Fund (WWF) Pakistan to protect white-backed vultures and ensure their captive breeding in the forest (3). Currently, Pakistan is losing forests at thrice the rate of the other South Asian countries. One of the major benefits of the Changa Manga Forest afforestation project was that it increased honey production by 70% in the different areas of the forest park (5).

The United Nations High Commissioner for Refugees (UNHCR) and its partners collaborated in 2018 to develop an ecosystem restoration project in the Rohingya Camps of Ukhiya, near Cox's Bazar. The main objective of this project was to mitigate the increased risk of landslides, slope instability, and flooding caused by flash floods and the vicinity of the Bakkhali River. The intervention included the planting of quickly growing native trees, shrubs, and grass species. Additionally, the project encompassed other measures such as vegetable cultivation on stream beds, biological soil stabilization methods, and plant-based wastewater treatments. To ensure the sustainability of the project, a network of future practitioners from the Bangladeshi and Rohingya communities was created. Moreover, environmental education and awareness activities were undertaken to complement the efforts of the project, with a particular focus on engaging young people from both the host and refugee communities to maximize its impact. The area where the project was implemented has been significantly affected by land and forest degradation over the last few decades, which has been exacerbated since the arrival of Rohingya refugees in 2017. Therefore, the project also involved other stakeholders such as the International Center for Conservation of Nature (IUCN), the Danish Refugee Council, the World Food Programme, the International Organization for Migration, and the Bangladesh government, each contributing in various capacities to achieve the project's objectives. (1,2,3,4)

18 km southwest of Karachi City (Sandspit area), the World Wildlife Fund Wetland Center (an NGO subsidiary of the WWF) started a project in 2011 called Nurturing Young Sapling with a grant from the Mangrove for the Future organization. The project aimed to increase the mangrove forest cover near Karachi as to restore the ecosystem and improve the habitat for local and migratory birds, crabs and other fauna. In this way, the project sought to improve biodiversity and therefore the availability of livelihood resources to the local community, as well as to enable ecotourism. It also focused to enhance the awareness of school children on the importance of a mangrove ecosystem and advocating for its sustainable use (1).
The project benefited local fishing communities, school children and their families as well as local and international visitors to the Sandspit area. The project resulted in the mangrove plantation at 4.5 hectares area, the establishment of a mangrove (Avicennia Marina) nursery, the plantation of 5000 mangrove saplings, awareness raising of 200 school children, two-day awareness conference, the celebration of significant environmental days at the Wetland Centre to promote conservation awareness among school children (1, 2, 3).
After the successful completion of the project in 2012, WWF Pakistan has been actively involved in the management and plantation of mangroves in the Sandspit area. Multiple campaigns and awareness-raising programs for coastal protection are conducted by WWF in their Sandspit office with multiple partnerships to plant and educate students and communities about the importance of mangrove trees. (5)

To address the increasing pressure on urban green spaces, Buku Jalanan Chow Kit, an NGO in Kuala Lumpur initiated a green project where the local community could thrive, learn about the benefits of nature and use their ethnobotanical heritage. The project provided a way to enrich biodiversity and enhance the sustainability and resilience of the local communities (1).
Kuala Lumpur, the Capital and the largest city in Malaysia is home to 1.8 mils. people. Due to its growing population, the city experiences a steep decrease in existing green spaces, increasing urban heat effects and air pollution (4). Furthermore, privatizing public spaces led to a loss in biodiversity throughout the city and severely affected the environment. The current project will focus on creating ~2500 sq ft (~232.2576 sq m) rooftop urban farm, biodiversity garden and playground on an existing building. This space will be a habitat for urban wildlife, as well as a space for food production and recreation (1). The project benefits from funding through the UN's GEF Small Grants Programme and aims to provide a community capacity-building space to engage and host activities to empower the Chow Kit community. (1,2)

Since 2012, the Municipality of Ipoh continued the revitalization and rehabilitation of the D.R. Seenivasagam Recreational Park (TDRS) under the Malaysian National Urbanisation Policy, which suggests that for every 1,000 inhabitants, there should be public green open spaces of 2 ha. Through this intervention, the Ipoh municipality tried to address several sustainability challenges, which are usually a result of the lack of green open spaces. Some of the challenges addressed were the urban heat island effect, soil erosion resulting from improper drainage, and noise pollution. Ultimately, the municipality aimed to provide a convenient setting for a variety of leisure and recreational activities in addition to enhancing the civic values of the community. The intervention consisted of several tree-planting actions organized by the Ipoh Council in collaboration with the Perak Government (a Malaysian state that has its capital in Ipoh).
D.R. Seenivasagam Recreational Park was built in the 1950s and is one of the largest urban parks in Ipoh. It has become a favourite among locals as well as an example of good practice for integrating green open spaces in addressing sustainability challenges over the years. Located in the vicinity of the Kinta River, during the early days of its opening, it was a mini botanical garden which eventually transitioned to a full-scale park, one of not too many in Ipoh. The park also includes a lake with wooden bridges that contributes to the diversity and habitat of the place. The DR Park, as it is known to the locals, has entertained many families for more than 25 years, starting as a mini-theme park during its formative years, much to the delight of many children. To date, the park has remained a popular spot with abundant greenery and attractions, an oasis within Ipoh’s city life. (1,2,3,4)

A community gardening pilot project was launched in Lahore by the Institute for Art and Culture (IAC) as a part of its mission and outreach programme to develop sustainable communities. Created in 2020, the project was developed in the Government Girls High School located in the vicinity of IAC in the low-income Sher Shah Colony in Raiwind Road. Various other organisations, including Gardening for All, The Little Arts and Adventure Foundation Pakistan also provided support to the project (1,2,3).

The project aimed to involve 70 students and 10 teachers from grades 7 to 10 via a series of workshops (3, 9) and provide hands-on training to the girls and their teachers (2). A trainer provided information on relevant topics in the workshops and also taught students of ideal and efficient planting practices (6).

The representatives of IAC and Gardening for All selected the ideal space for carrying out the community garden project in the school playground (4). The total area of the community garden is not revealed but proper raised beds were created for students (2). The students participated in the development of the community garden and took care of their dedicated garden beds (3, 6). The representatives of IAC had a keen interest to ensure the long-term continuity of this project by providing appropriate training and involving the schools together with the communities they represent (3).