Improved air quality

Raipur city is known as the seventh-most polluted city in the world (2, 3, 4). In response to the escalating problem of air pollution and its public health effects, the state of Chhattisgarh in India has envisioned the creation of a verdant and healthy natural space for urban inhabitants in the heart of Raipur - the Oxi-zone (3).This project acts as the 'Breathing lungs for Raipur' (1, 2). Approximately 19 acres of land were allocated to create an ‘oxy-zone’, including the demolition of buildings to plant trees in their place (1, 2, 4). Inspired by the iconic Central Park of New York City, and suggested by a local citizen group, the Oxi-zone aims to transform this area into a thriving habitat for diverse species of trees and plants, which will also provide water bodies to replenish the groundwater in the vicinity (2, 3, 4). In summary, this project is an integrated green space, enabling residents to relax, meditate and exercise within the “shadow of nature” (3, 4).

Uuliin Nuur (Mountain Lake or Green Lake) is a community park located in the ger district area known as Denjin Myanga of Ulaanbaatar city. The Ger district is a term commonly used in Mongolia to refer to a type of settlement located on the outskirts of the country's capital city and characterized by traditional Mongolian gers, or yurts. The area was once a quarry for the city’s construction during the socialist regime (from 1946 to the late 1960s) and was turned into a dumping ground after its closure. In 2009, a private citizen, Ulziitogtokh Sodnomsenge, gained approval to develop Uuliin Nuur. He cleaned up the area and used his savings to turn the former dumpsite into a green garden in the middle of ger areas to create a healthy, green, public space, especially for children living in the area. He opened an ice rink in the winter of 2012 and officially opened the Uuliin Nuur park in May 2014. From 2013 to 2019, approximately 1000 trees and shrubs were planted in this park during the spring and autumn. The trees were planted by the founder of the project by locals and foreign visitors as memorial trees. Over the years, the park was equipped with various community facilities to support social interaction and educational purposes. Uuliin Nuur is one of the few public places launched and developed by an individual. It showcases how abandoned places can be transformed into valuable places and how the local community's attitudes and awareness can change. (Ref. 1, 3, 4)

The Urban Farm Office building, is a concrete-framed structure covered in a "vertical farm" of vegetables, fruits and herbs. The building was constructed by the Vietnamese architectural firm Vo Trong Nghia (VTN) Architects in early 2022 as its own headquarters in Ho Chi Minh City. It aims to promote the production of safe food while reintroducing green space to the city with a façade covered in vegetation. Furthermore, the project also seeks to address the absence of green space that contributes to a number of socioeconomic issues, including air pollution, flooding, and the heat island effect. VTN Architects' idea for the Urban Farming Office includes the area of space-efficient food production in cities through vertical urban farming in addition to the core objective of restoring vegetation to urban structures. (1, 3)

The Cultural and Recreation Center of Darkhan City is a government-led initiative that provides an environment for citizens to enjoy their leisure time. It is comprised of multiple facilities, including the "My Mongolia" Park, "Darkhan-50" Complex, Friendship Square, Morinkhuur Complex, Burhantai Tolgoi Complex, Duujin Bridge, and Suren Street, covering 43.0 hectares.

The "My Mongolia" Park, spanning 28.0 hectares, is the most significant section of the Center and boasts an 80% coverage of lush greenery. It features a recreation and leisure park centered around the twelve Western zodiac signs and two pedestrian paths that are 1.2 km long and 2.5 m wide. "My Mongolia" Park is a popular destination for Darkhan City residents seeking leisure and relaxation.

The "Darkhan-50" Complex covers 4.2 hectares of land and includes green spaces, fountains, and classical sculptures, while the "Morin Khuur" complex is adorned with a statue of a galloping horseman inspired by the legend of Khukhuu Namjil. Occupying an area of 3 hectares, the complex is surrounded by around 1200 trees and bushes. Additionally, the Burkhantai Tolgoi Complex is a memorial park established in 2003, featuring a Buddha statue. (Ref. 1, 2, 8)

To celebrate the 100th anniversary of Lumpini Park in 2025, Bangkok Metropolitan Administration initiated the extensive renovation of the park. Lumpini Park was the first public park in Thailand. It was first opened in 1925 and had been renovated once 50 years ago. The new Lumpini Park aims to enhance the history of the park, to provide space for people holding different cultural backgrounds and to create space for modern recreational activities, designed for everyone within the framework of 'climate action park' - a green area that has the ability to restore itself, promotes urban farming while also contributes to climate change adaptation through water management, air quality improvement and more. The project will promote high engagement with local people about their vision and concern for the park which will be integrated into the new design plan. The project is divided into three phases. The first phase involves renovating main infrastructures such as roads and water management systems. The second phase involves the construction of green and learning areas such as the resilient park, forest park, urban farming, learning centre and other recreational spaces. The third phase involves the development of underused areas. (Ref. 1,2,4,5,6)

Doh Eain, which means “Our Home” in the Burmese language, is a community-centred design firm that converts trash alleys in Yangon into gardens, composting stations, street markets, playgrounds, and art galleries, where community members can make memories and positive change.
As Yangon has one of the lowest public space-per-person ratios in South East Asia, Doh Eain saw a role for a social enterprise to preserve and improve heritage and urban landscapes directly with the people and communities who inhabit them. Doh Eain’s vision is to collectively make cities more vibrant, inclusive and sustainable places to live, work, and enjoy by maintaining the city's unique characteristics and creating an urban environment that enables people and society to thrive. Their mission is to preserve heritage, improve public spaces, and organise activities that connect people with places, employing a user-centred and participatory approach. In doing this, they aim to inspire and enable people to participate in reshaping their city while retaining cultural heritage (1).
The Yangon's alley gardens project started when a group of young, local and expatriate residents in Yangon decided to set up a small permaculture garden, however, they could not find a suitable plot of land for it (2). As a consequence they had to change the focus and transplant green pots filled with vegetation and vegetables into the back alleys. The implementer used an innovative technique by using bokashi composting of food waste, with around 80 households signing up to take part in the initiative. (5)
The initiative was quite successful as it helped break the cycle of throwing trash out the window into alleyways and built several elevated garden beds. (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).

Mue Yen Mueng Yen (Cool Hands Cool City) is the name of a green community as well as their first project that aims to plant more trees in Chiangmai city, Thailand. Volunteers of Mue Yen Mueng Yen are concerned about the pollution and extreme climate issues in the city. They gathered around the belief that healthy green space can help mitigate these issues and make their city more livable. (Ref. 1,2,3,4)
The first phase of the Mue Yen Mueng Yen project consists of three main activities. The first one is a tree-planting challenge: when 1 person plants a tree, they challenge 3 other friends to do the same. The second activity is offering 5,000 native saplings to anyone interested in planting trees for free. The third one is to plant 800 trees around the old moat in Chiangmai inner city as a green corridor. (Ref. 1,2,3,4)
Besides this initial project, the Mue Yen Mueng Yen community also works on various environmental projects. For example, spreading the tree-planting challenge to other parts of the country, and organising workshops about tree planting, maintenance techniques, native species and on rice growing (Ref. 6 ).

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].