Improving physical health

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).

The Community Garden Project was proposed in 2018 by Samyuktha Kannan (a resident of Chennai City) to the Resident Welfare Association (RWA), which is a non-governmental organization (NGO) of Kasturba Nagar (1,2,3). The RWA uses the community hall of a public park of Kasturba Nagar to host meetings and community events, but the area was surrounded by open dry land and an unmanaged field (1,2). This open area surrounding the community hall was then assigned to develop a community garden of 1500 square feet (1,2,3). This project aimed to serve as a shared garden place to bring along residents of all age groups to enjoy gardening and simultaneously create opportunities to learn and share knowledge through social engagement and reconnect with nature (1,2). Although implemented and completed in 2019, the project still continues to contribute towards sustainability through further development and introduction of eco-friendly elements and activities, as well as the involvement of various stakeholders for support (3,4).

In 2005, a constructed wetland was established in Barangay Villareal, Bayawan City in order to improve a peri-urban settlement and promote domestic wastewater treatment with reed beds. The wetland covers an area of 2680 square metres and comprises two reed beds, with the first bed utilizing perforated pipes beneath a sand and gravel substrate for vertical flow filtering, and the second bed utilizing horizontal flow for biological filtering. The roots of the Phragmites karka reeds, which are used in the system, act as a natural filter, removing microorganisms and pollutants. The treated effluent is reused for various purposes, such as watering plants, firefighting, and irrigating ornamental plants and agricultural crops. The overarching objective of the initiative is to safeguard coastal waters from pollution caused by domestic wastewater and enhance residents' quality of life by providing safe sanitation and wastewater treatment facilities. Furthermore, the initiative seeks to showcase the effectiveness of constructed wetlands, encourage the use of locally available reeds for wastewater treatment, and conserve water and nutrients by reusing treated wastewater. [1,2].

As an industrial development practice that involves a symbiotic connection between materials, energy, natural systems and local communities, the concept of green industry has become a point of focus for a factory in Rangapur, Karupannya Rangpur Ltd., designed by Architect Bayejid Mahbub Khondker and his team. The factory has become a pioneering example in the "green industry" initiatives in Bangladesh (2).
The factory has a green façade of climbing plants, as well as a green rooftop and integrated green elements, designed specifically to incorporate a once extinct industry, the Shataranji (weaving style). The intervention was designed to respond to human and enviornmental needs (2,7). From a human perspective, the intervention responds by improving work conditions for the workers by introducing green spaces that help with local temperatures and relaxation. From an environmental perspective, the project responds to challenges related to energy efficency (3,4).
The factory architecture incorporates cultural and indigenous knowledge with the utilization of natural light, wind, water, and flora while maximizing the use of natural elements and the idea of "Reuse and Recycle." The factory's roof features the Nandini Park, where employees can relax and eat lunch. The Nandini Park is surrounded by flowering plants and vegetation. (1, 2, 4, 6)

Rajshahi is a Bangladeshi metropolitan city located on the north bank of the Padma river. The city has seen, throughout the years, an increase in greenhouse emissions and maximum temperatures as well as a decrease in open spaces from 11.09% to 4.5%. To counteract many of these challenges, the Rajshahi City Corporation (RCC), with support from ICLEI South Asia and UN-Habitat implemented an initiative called the Urban-LEDS II, which was designed to help cities to adopt a low-emission development approach. (Ref 2)

The project's approach included support for better management and maintenance of Rajshahi's open green spaces, as well as an objective of raising awareness among stakeholders about the region's biodiversity and the ecosystem services it provides and promoting outdoor activities. (Ref 1)

The activities included in the approach were two-folded. One of them targeted the greening of the Rajshahi’s Kolpona-Talaimari river embankment through tree plantations on the slopes and was seen as a demonstration pilot for a bio-diverse plantation scheme. The project implemented a pilot-scale plantation employing native and introduced plant species, as well as maintenance, contracting out to a nearby nursery (Ref 1, 2). The other approach included an increase in public awareness and advanced conservation, hence common trees were identified and documented in a graphic guide. Mapping of the trees of Rajshahi called the Natural Asset Map, and a Pictorial Tree Handbook for its citizens in order to improve and better manage their urban green spaces and biodiversity were conducted. Maps of Rajshahi's natural resources have been created for the entire city as well as for each of its 30 administrative zones. ( (Ref 1, 2)

It was expected that through these actions, Rajshahi would contribute to Aichi Targets 1, 2 and 17; and Sustainable Development Goals (SDGs) 11, 14, and 15 (Ref 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 roof garden is one of the most distinguishing features of JEG Tower @ One Acacia, a 22-storey commercial tower in Cebu City. [1] Featuring the purely endemic flora of Cebu, the roof garden offers a dedicated green space in the middle of the cityscape to tenants and visitors of the buildings. The project was created to contribute to the preservation of Cebu's Biodiversity, combat air pollution and improve the mental and physical well-being of residents and visitors. [1] It also includes an events space that people or companies could hire [4].

The Adopt-a-Park project is an urban re-greening and renewal program. The Metro Manila Development Authority (MMDA), working together with the 17 Metro Manila local government units (LGUs), has launched the initiative to address rapid urbanization and urban decay by creating new green areas and renovating existing but underutilized or derelict neighbourhood spaces [4]. The project is part of the "I ♡ Metro Manila" advocacy program of the MMDA, which was launched to "uplift the spirits of the residents recovering from the impact of the COVID-19 pandemic as well as to strengthen initiatives on urban renewal that aims to transform the metropolis to be a more livable, greener, and resilient region"[1].

The Misheel Botanical Garden is a large park located in Ulaanbaatar, Mongolia, established in 2021 along the Tuul River. The project was carried out by "Misheel Group" LLC in cooperation with public actors and more than 100 customer organisations, within the framework of social and environmental responsibility. The project cost 2.1 billion MNT and covers 110,000 square meters of green space, which was beautified without disturbing the native vegetation. The center aims to maintain and restore the ecological balance of flora and fauna, increase the flow of the Tuul river basin by planting trees each year, and provide citizens with more leisure and recreation opportunities. The botanical garden includes a combination of green-blue infrastructure and offers the opportunity for people to relax and expand their knowledge about a healthy environment. The center features a laboratory for students of natural sciences, a basketball court, a sand volleyball court, leisure areas for the elderly and infants, a dedicated sand area, and access for strollers and people with disabilities. The center also includes a terrace with a view of the Tuul River, where visitors can relax, and host events and activities throughout the year, including the winter.
[Source: Information provided by the management team of this project, Ref. 1, 5]

Mérida city developed a Municipal Green Infrastructure Plan (Plan Municipal de Infraestructura Verde), in order to "strengthen the green infrastructure system through planning, design and implementation of urban strategies at different scales of actions and projects that contribute to enriching ecosystem services in the public and private space of the Municipality of Mérida" (Ref. 1). The plan has four axes, providing a comprehensive and transdisciplinary approach to integrating nature-based solutions into city planning and the design of public spaces in order to provide climate change adaptation and mitigation benefits (Ref. 1).
The Mérida Green Infrastructure Plan shares strong ties with a state-wide strategy, 'Arborizando Yucatán', which promotes reforestation efforts across the 106 municipalities of the state in order to "help reduce the effects of climate change, have more areas green and a better climate for the benefit of current and future generations of Yucatecans" (Refs. 3 & 4). At both the municipal and state level, the relevant administrations (Mérida City Council and the State Government, respectively) have signed an agreement (Declaration for Mérida 2050), whereby both pledged to plant at least 200,000 native trees in the City of Merida, running alongside both the Mérida Municipal Green Infrastructure Plan and the Aborising Yucatán Strategy (Ref. 2).