Lowered local temperature

Clifton Urban Forest was initiated by an individual named Shahzad Qureshi after Karachi witnessed its first “official” heat wave in 2015. More than 2000 people died in the region when temperatures reached over 120 degrees Fahrenheit in Karachi (Ref: 1,4). The major culprit for this heat wave was the ‘Urban heat Island’ effects, resulted from the congested concrete build-up and less green cover. At that time everybody started realizing the non-existence of green cover in the city is the reason behind the city being very hot. Qureshi saw a TED talk about the Miyawaki Method, a quickly growing dense urban forest and decided to give that a try. He believed that the Miyawaki Method, which promised a fast and sustainable forest within three years without using any pesticides and chemicals, could transform Karachi (Ref: 4,7).

Therefore, in December 2015, he and his team planted the first pilot forest covering about 300 square meters based on Dr Akira Miyawaki’s Methodology in a city-owned site in the Clifton area of Karachi. The area previously was used as an open dumping site. The project landscape design was developed by a German-trained landscape architect on 3 acres area and turned into an urban forest park (Ref: 6, 9). When the project became successful, they expanded the forest to the whole park, which is almost 12,000 square meters. The current project envisions increasing the green cover to restore Karachi's degraded environment by creating evergreen and sustainable forests. It targets to feature 50,000 trees, more than 50 native species, 1.2 km of nature walkways, vegetable gardening, community composting, a butterfly garden, a children's natural playground, a fruit forest, a central lake and a skywalk (Ref: 2, 4).

The created forest is self-sustaining with recycled wastewater. It has an organic vegetable garden that provides food for the community, a natural playground for kids, a lake for excess water storage, and a composting and recycling area that absorbs waste from 100 households around the park. Multiple school field trips have been arranged in the park to create awareness among the children about biodiversity and the natural ecosystem (Ref: 5, 6). Moreover, people have been actively visiting the Urban Forest and enjoying the interaction with native plants, and biodiversity and spending some peaceful time for relaxation and leisure (Ref: 9).

The project has received a lot of national and international recognition and funds from Sugi Projects, the Rotary club and crowd-sourced from various corporations and individuals (Ref: 7). Since then, Qureshi and his team have created 24 more forests in Pakistan (Ref: 5, 6).

Asia is one of the fastest economic growing regions and so are many cities on the Asian continent. Economic growth brings forward many challenges including intensive urban development, loss of natural features, increased urbanization, and high levels of air pollution, just to name a few. One of these cities is Ho Chi Minh where it was assessed that only 0,25% of its area is covered with vegetation, and in addition to this, there is traffic congestion and air pollution (3).
In an effort to rectify some of these transgressions, a private initiative developed a house called the House of Trees, located in Tan Binh district, one of the most densely populated residential areas in Ho Chi Minh City, where many small houses are crowded together (2).
The green features of the house include five roofs that function as gardens thanks to a layer of earth substratum, from which tall tropical trees grow (3). The aim of the project is to bring green space back into the city, accommodating high-density dwellings with big tropical trees. Five concrete boxes are designed as "pots" to plant trees on their tops. With a thick soil layer, these pots also function as storm-water basins for detention and retention, hence contributing to reducing the risk of flooding in the city. The project has been conducted by Vo Trong Nghia Architects, a leading Vietnamese firm in building green architecture in urban Vietnam. (1)

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 ).

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].

Wajre Urban Forest is Maharashtra state's first urban forestry project developed on the outskirts of Pune city (1, 2). This project was done in a collaboration involving the public, corporate, NGOs and governmental actors (3). A barren land of 16 hectares, also used as a dump yard by the nearby residents, belonging to the Maharashtra Forest Department, was taken by the TERRE Policy Centre in association with support from TATA Motors and Persistent Foundations as CSR Partners (1,3). The project was targeted to reduce air pollution and provide a site for the recreation and relaxation of urban residents of the city (4).
A total of 9500 plants belonging to 23 indigenous plant species of 6-8 ft were planted (1,2). The plants have now transformed into trees 9-10 feet in height (1, 5). The park also provides the opportunity to engage citizens by the provision of adopting specific plants in your name (5). The park is frequented by morning and evening walkers, with approx. 1000-1500 people per day (1,3).

Penang is a state located in north-western Peninsular Malaysia with an area of 1,049 km2. It comprises two local authorities, Penang Island and the mainland. The former is further divided into five administrative districts which are further divided into mukims (sub-districts). Two urban mukims located on the island – George Town and Bayan Lepas – are the focus of the proposed nature-based solutions (NBS) climate adaptation programme. The programme was launched in 2022 by UN-Habitat in collaboration with the Ministry of Environment and Water (KASA) of Malaysia, Penang Island City Council (Majlis Bandaraya Pulau Pinang - MBPP), Department of Irrigation and Drainage (Jabatan Pengairan Dan Saliran - JPS) and Think City (a wholly-owned subsidiary of Khazanah Nasional Berhad (the sovereign wealth fund of the Government of Malaysia)). (Ref 1)

The implementation of the project responds to several challenges posed by climate change including heatwaves and flooding (Ref 4). The main goal of the programme is to enhance urban resilience and reduce human and ecosystem health vulnerability to climate change impacts and extreme weather events by implementing nature-based solutions (NBS) such as tree-lined streets, pocket parks, green parking spaces, green facades and rooftops, urban agriculture and blue-green corridors to reduce surface temperatures and stormwater runoff, as well as to increase social resilience and build institutional capacity (Ref 1, 3).

Food safety has come a long way and today it is one of the biggest challenges globally, especially in the developing world. According to the World Bank, Viet Nam is one of the countries prone to food-borne illnesses and food safety is a major concern for the public there (1). Increased droughts, floods and salinization have further enhanced and endangered food supplies. Access to healthy food is not optimal. To solve this issue, some Vietnamese private companies came up with a solution. In 2013, a shoe factory in the city of Dongnai (located around 30 km away from Ho Chi Minh City) established a welfare facility for the factory's employees, called Farming Kindergarten. The building was designed with the idea of serving 700 children of the workers by providing healthy food, as well as environmental education. The design includes a green roof where vegetables are cultivated alongside playgrounds for the children. The roof is designed in such a way that it is the perfect environment where children learn about the importance of agriculture and strengthen their connection with nature (2, 4, 6). The harvests from the garden are distributed to the children's families, contributing to a rather small family budget of Vietnamese workers (the average income of Vietnamese workers is just 180 USD per month) (7).

The green infrastructure master plan of Udon Thani aims to prepare the city for the future development challenges by offering a new infrastructure network that can mitigate flood and drought while enhancing community and public space within the municipality. Udon Thani is an important economic city in the northeastern part of Thailand and is growing rapidly. With urbanization and climate change trends, the city is experiencing water supply and flood challenges. The masterplan consists of four main design strategies including canal restoration, green streets, retention parks and wetland areas. All four mains strategies create multi-functional spaces that promote environmental and social benefits together. Aside from slowing water flow which allow infiltration and retaining water, these spaces act as park and community garden which offer passive and active recreational activities. In total, 14 sub-projects were proposed together with cost-benefit analysis. (Ref. 1,2,3,4) Currently, the first project is under construction, which is a canal restoration (Huay Mak Khaeng). The construction is expected to finish in 2024. (Ref. 6,7,8)

To build "[a] airport in the forest, and [a] forest in the airport", a Jungle Broadwalk was created inside the Kuala Lumpur International Airport (KLIA) between 2004 and 2009. KLIA is one of the world's largest airport sites, spanning over 100 square kilometres of land, and it is located in the Malaysian state of Selangor. The Jungle Boardwalk is a miniature tropical rainforest, recreated inside the airport grounds between the main terminal building and the contact pier, and in the central garden in the centre of each satellite building. Though the airport is functioning since 1998, the Jungle Boardwalk was implemented only in 2004 and is home to 3,660 trees of more than 39 species, serving almost 14 mils. passengers every year. The mini forest is home to an impressive variety of trees such as the Medang, Kelat, Tukas and Penaga lilin trees that are indigenous to Malaysia.
The intervention provides many benefits such as a cooling temperature level inside the airport, a space for passengers to decompress, and an exploration of the relationship between nature and humans. This project creates a miniature Indonesian rainforest inside the airport to keep alive the heritage of the country's nature. The implementer had in mind "the vision to share a piece of Mother Nature’s tropical heritage with our passengers through the refreshing experience of walking through our natural forest reserve.” This and the fact that the airport is Green Globe Certified makes the intervention unique. (1,2,3,4)

The Central Forest Corridor surrounds the capital of Honduras, Tegucigalpa, and provides various ecosystem services to the population, with a particular emphasis on providing water for communities within both the corridor and Tegucigalpa (Ref. 3). However, limited access to water is common across Honduras, attributed to the degradation of watersheds as a result of deforestation and pollution of both ground and surface water (Ref. 1). Climate scenarios further "indicate that existing water scarcity will be exacerbated by climate change and increasing variability"... with "the main urban areas (Tegucigalpa and San Pedro Sula) and several agricultural areas (Patuca basin)...fac[ing] increased water scarcity in the near future" (Ref. 1).