The innovation is transferred to new initiative(s) without substantial adaptation

Due to the growing population density and extreme climate events in Bangkok, Thailand, food security has become a more and more pressing issue for urban people. As a response, the Bangkok City Farm project was launched in 2010 by the Food and Nutrition Programme of the National Health Promotion Foundation. Implemented in collaboration with the Sustainable Agriculture Foundation Thailand (SAFT), the project aims to encourage and enable people in urban areas to grow their own food. The project offers financial support to anyone who wishes to start their own urban agricultural project, as well as training courses, access to food markets and knowledge sharing platforms. The implementation sites of the farms varies from private house gardens, community gardens, areas in informal settlements, school gardens and institutional green areas (such as hospitals and factories).(Ref. 1,2) The Bangkok City Farm's role in promoting food self-reliance and food security grew further during the COVID-19. As a result of the pandemic, many people in Bangkok - especially from underprivileged communities lost their jobs and their livelihood and access to sufficient and health food was threatened. Thus, as part of the project, green areas on vacant sites of the city were also created to support the out-of-work people with enabling them for self cultivation of their food. (Ref.6) As of 2022, there are 165 farms in Bangkok created through the project. Given the success and importance of the project, the project was scaled up into a nation-wide initiative called ‘Thai City Farm’. 'Thai City Farm' expanded the network to five other cities in Thailand. (Ref. 1,2)

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).

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).

Nazarbayev University (NU) launched the Green Campus (GC) project in 2016 to promote environmental sustainability (2). The GC concept is based on principles of the sustainable development and aims to focus on the greenhouse gas emissions reduction and waste management processes (1, 5). The university has established a Green Campus office, a Green Campus University Committee and the NU Green Society for the implementation of the project (2).

One of the main activities of the Green Campus is organizing tree-planting events on campus. To date, more than 1000 trees have been planted, with funds donated by university sponsors or raised via the collection and recycling of campus wastepaper [3, 4]. Additionally, the initiative also implemented a separate waste collection process for six types of waste: paper, plastic, glass, metal, batteries, and light bulbs. The collected waste is sent for recycling to selected companies [2].

Before Earth Day, NU also hosts an annual Green Week in April, to promote sustainability practices within its community. The Green Week program typically includes eco-talks by experts, workshops, garage sales, vegetarian food fairs, eco-trips, art exhibitions, and environmental movie screenings [2, 4, 5]. Climate Week, training courses, and Climate Launchpad are also part of the university's green initiatives to educate students on environmental practices [5].

In 2021, the local municipal government of Navi Mumbai City and a local NGO converted a neglected urban space used as a dump yard in Nisarg Udyan into a healthy and dense forest (Ref 1,2). The aim of the project was to improve biodiversity and complement the local ecosystem, choosing specifically native species from the local area for plantation (Ref 3). By applying the Miyawaki forest technique, the project was able to transform the wasteland into a 3-acre mini-forest quickly. A civic officer on behalf of the Navi Mumbai Municipal Corporation (NMMC) drove the re-forestation project jointly with the support of Green Yatra, a local NGO, and corporate social responsibility (CSR) funding support from Sony Music Entertainment (Ref. 1, 3).

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 2010, to revamp the Raja Musa Forest Reserve (RMFR), a rehabilitation project was initiated by the Friends of North Selangor Peat Swamp Forest Association (a local NGO) in collaboration with governmental and non-governmental stakeholders. As part of the largest peat swamp forest complex on the West Coast of Peninsular Malaysia, the Raja Musa Forest Reserve (RMFR) is an important home to many threatened species, as well as a valuable ecosystem in the fight against global warming. Despite this, over the years the forest has been subjected to fires and illegal encroachment which severely reduced its area (1). The project was considered unique as it was an innovation aimed to enhance and strengthen the capacity of the local community in peatland water management and forest rehabilitation works (3,5). Activities included among others rehabilitation of the degraded peat forest through the plantation of new seedlings, demonstration of, and provision of a documentary model for community-based peat swamp forest rehabilitation, as well as the creation of an awareness programme with the local community and dissemination of educational materials (2).
The importance of the intervention consists not only in the implementer's approach in regard to nature-based solutions but also in its aim of documenting a "model of low-cost hydrologic restoration of peat swamp forest" which ultimately should be replicated in similar conditions but in various locations (2).

Bangladesh is a country prone to floods and waterlogging, which results in two-thirds of this nation's land being transformed into wetlands each year. As such, much land becomes unavailable and the restricted access to it causes food insecurity as well as severe environmental pressure on the flora, fauna and ecosystems. The impact is even more serious as agriculture is one of the most important contributors to Bangladesh's GDP (1).
To respond to most of the climate challenges and food insecurities, in 2007 the International Union for Conservation of Nature (IUCN) and the humanitarian agency Care International, alongside other partners (including the Bangladeshi government), launched floating gardening (artificial islands, that simply rise and fall with the swelling waters) pilot project in the peri-urban area of the Gopalganj and other close by districts (1,2).
Floating gardens known locally as Baira are an old practice of crop cultivation in the wetlands of Bangladesh, the previous agricultural land, which got destroyed by the floods. The practice consists of piling together a number of dense layers of aquatic weeds like water hyacinth, duckweed, or paddy stubs and letting them decay. Afterwards, they're combined with silt and cow dung and inserted with plant/vegetable seeds left to flourish. On these beds, farmers cultivate fruits and vegetables like turmeric and ginger as well as okra, bitter gourd, snake gourd, spinach, and brinjal. In addition to veggies, rice seedlings can occasionally be raised. As a result, floating gardens are available to everyone, affordable, dependable, and completely in harmony with nature. (2,3) Furthermore, this aquatic farming practice has been shown to be highly effective in tackling the consequences of climatic variability and climate change like prolonged water-logging (3). The intervention has benefited approx. 2,000 families in the district of Gopalganj and it has opened the route for further projects that supported the practice of floating gardens (4).

In 2017, the city of Jakarta initiated a peri-urban farming program under its Urban Agriculture Program that aimed to achieve sustainable agricultural production, rural economic sustainability and long-term environmental sustainability (1,4).
South Jakarta is one of the five administrative units that form Jakarta is a prosperous city with more than 2.2 mils. inhabitants. Industrial production as well as urbanization developed quickly in the city, leading to a steep increase in population. Meanwhile, the city experiences a reduction in agricultural land converted into settlements and industrial land, as well as soil deterioration. The city needs agricultural land for production and to establish food security. Furthermore, it needs to improve air pollution as well as oxygen provisioning. As such a solution had to be found (1).
To implement the program a total of 12 communities in the South Kebayoran Lama subdistrict of South Jakarta participated in implementing and operating urban farms. One of these communities has been the Kebayoran Lama Selatan Urban Village managed by Seruni Indah Farmers Group (Kelompok Tani Seruni Indah) which is a very successful example of sustainable organic urban farming supporting more than 3500 residents. The engagement consisted in using vacant and private yard land for horticultural crops (vegetables, fruits and ornamental plants), spices, medicines, herbs etc. through hydroponic and conventional practices that could benefit the community and the general public. 15 gardens have been implemented with funding provided by the Indonesian government (3, 7).

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)