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Vietnam's capital, Hanoi, is the second largest city in the country and is one of the most vulnerable to climate change. The city is located on the western bank of the Red River, the principal river of northern Vietnam. Throughout the centuries authorities in Hanoi built dykes to protect the city from the instability of the Red River. Though these dykes were built at a high altitude, the floods became more intense due to the huge amount of alluvium that rests in the middle of the river and that could not continue to consolidate on the banks and making water levels higher and more dangerous. Furthermore, outside the dykes, in the riverine zones (which play a role as green corridors to connect the city and the river) economically disadvantaged people built settlements contributing to soil erosion (caused by illegal construction and excessive sand exploitation), subpar soil quality, and poor waste management. (1,2)

The Red River Zoning Plan (RRZP) came as a solution to address the issues before mentioned and has been promoted by the Hanoi People’s Committee. The plan is encompassing an area of about 11,000 hectares in 13 districts. The plan was approved by the Hanoi People's Committee in March 2022 at a size of 1/5000 section from Hong Ha Bridge to Me So Bridge. (1,4)

According to the concept, a 40-kilometre-long new metropolitan area would be created on both banks of the Red River. This urban space would be a flood drainage area for downtown. It will be designed with a green landscape including public spaces for cultural and tourism purposes. For this, the city would invest in a network of transport and technical infrastructure to bolster connectivity in terms of roads and waterways with neighbouring areas. Particularly, the RRZP is building three types of new parks near the riverbanks, including a nature conservation park, an agricultural park, and an urban park to improve climate change adaptation and bring more natural elements to the city. (1, 4)

Lahore University of Management Sciences (LUMS) is a private research university located in the main residential area of Lahore City and is spread over a 100-acre area and hosts various plant and bird species. The Life Sciences Department of LUMS collaborated with the Botany Department at the Government College University to plant some rare species of endangered trees at LUMS. The project aims to preserve the ecosystem on the LUMS campus and develop an inventory of plants and animals commonly found on the campus. Taxonomic expertise and the modern science of DNA sequencing are used in the analysis and identification of plants. Additionally, LUMS aims to be the first University in Pakistan to set up a national biosurveillance system that would track biodiversity at all documented sites with their GPS coordinates across the whole campus. It envisions creating knowledge and awareness about the importance of the diverse biodiversity found on campus. It will enhance the effective management of present resources to preserve them for future generations. These findings may potentially serve numerous disciplines from other departments and also increase information and effective management of wildlife on campus. (Ref: 1, 2, 3)

The International Institute of Rural Reconstruction (IIRR) Myanmar and its local collaborative organizations developed a community garden at Inn Dein village to ensure access to diverse and safe food amidst the current internal crisis in Myanmar. The community garden is a part of the wider research project “Climate-smart villages as platforms for resilience building, women empowerment, equity, and sustainable food systems”, funded by the International Development Research Centre (IDRC). The expected outcomes are to benefit over 4,200 internally displaced persons (IDP) (due to COVID-19 and internal conflict) in Inn Dein and the Yangon Monastery Camp in Nyaungshwe. The community garden was established in the close vicinity of the Internally Displaced People (IDP) camp. The garden area is about 1.5 acres and rented for three seasons from the owner. Saplings were supplied for agroforestry purposes and a community support fund has also been provided for income generation and livelihood activities. Sprinkler irrigation has been installed to cover the whole land area, and 20 types of crops, including several legumes crops and vegetables such as mustard, radish, carrot, coriander, okras, eggplant and pumpkin are being cultivated. This project is particularly important in the current situation "[because of the lack of opportunities to direct support to IDP camps and the risky situation in food supplies, access to food and nutrition for IDPs is critically important." This project benefits both addressing food insecurity and increasing green space in the neighbourhood of the IDP camps. (Ref 1).

Bangladesh Forest Department (BFD), as a part of its annual development programme, has been leading the coastal afforestation programme to stabilize Bangladesh’s coastline and create green belt. In order to establish mangrove forests in coastal areas, specifically chars in the southern coastal zone, the Forest Department undertook an afforestation project in the new deltas developed in the Bay. Afforestation is being used in vulnerable coastal areas, where the initiative brought mangrove species to the region in order to act as shelters for the exposed coastal communities subject to powerful cyclones, tidal surges, coastal erosion, and other disasters. In terms of the severity of the effects of climate change, Bangladesh is at the forefront, especially for coastal populations, as their livelihoods are wrecked by storms. Nature-based Solutions (NBS) are emerging as significant instruments for coping with climate change, while traditional methods of prevention, such as hard flood defence, have proven to be impractical and unsustainable. Additionally, the project includes greening of the whole coastal regions including creation of strip gardens and home gardens to improve the biodiversity of the area and to stabilize the newly found land. Furthermore, the coastal afforestation project will also help to develop newly accreted land of an island (char) in the Bay of Bengal, which is being included with Bangladesh's mainland from 2021. [Ref 1,3,4,6]

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 Neela Hauz lake, part of the Neela Hauz biodiversity park, is a natural depression that was once a major source of drinking water for south Delhi, India (Ref 1). Due to nearby road construction and neglect, the lake was filled with solid waste and construction debris for many years. In 2015, based on the request of neighbourhood colonies, the Delhi High Court ordered the restoration of the lake. The Delhi Development Authority (DDA), in collaboration with the Centre for Environmental Management of Degraded Ecosystem (CEMDE) of the University of Delhi, carried out the restoration and revival of the lake using a Constructed Wetland System (CWS). Using the help of natural landscaping composed of oxidation ponds, pebble beds, and furrows having aquatic plants, now the sewage from nearby residential colonies is treated before passing it to the lake (Ref 2). The wetland now converts approximately 1 million litres of sewage per day which has resulted in satisfactory water quality levels (Ref 1). The lake, along with the surrounding biodiversity park, attracts many migratory birds and is also a tourist attraction point in the city. The success story of the lake now has become a model case for the revival of other lakes in the city (Ref 1).

The project “Enhancing climate resilience of Gorakhpur by buffering floods through climate-resilient peri-urban agriculture” is part of the Asian Cities Climate Change Resilience Network (ACCCRN) and financed by The Rockefeller Foundation. It was implemented by the Gorakhpur Environmental Action Group (GEAG) from June 2012 to May 2016 to demonstrate how ecosystem services generated by peri-urban agriculture can positively address the impacts of climate change in Gorakhpur, a city located in eastern Uttar Pradesh, India (Ref 1, 2). To be more specific, it was set out to “demonstrate flood risk mitigation through the preservation and improved management of open spaces by strengthening agriculture-based livelihoods in peri-urban areas” (Ref 1, 2). The main project outcomes were focused on conserving peri-urban agricultural land areas as they serve to climate-proof cities and build resilience, enhance the livelihood and food security of vulnerable groups in peri-urban areas, as well as establish sustainable and climate-resilient models (Ref 1). Activities like baseline surveys, field interventions, climate resilient extension systems, the adaptation of practices and research and advocacy were carried out to achieve the project outcomes (Ref 1). Additionally, the project has successfully improved the soil and water quality and developed special measures for waste management (Ref 1, 2, 3).

APEC Park is located on the banks of the Han River, in Binh Hien Ward, Hai Chau District, Da Nang City. At first in 2017, the APEC Park was constructed as a cultural work preserving the unique cultural features of 21 economies of the Asia-Pacific Economic Cooperation. In 2020, The Danang local government decided to expand the park as an effort of the city to increase trees and green space in public parks and residential areas to achieve the “green and smart city” goal by 2030 (1,4).
The new APEC Park comprises a public park, a stroll garden associated with an existing sculpture garden, a main stage, a water fountain, a stage for organising cultural events, a playground for children, green areas, a parking space, a lake and underground public toilets ( 1,4). The park is built in an area of more than 8,600 m2, next to the Da Nang Museum of Cham Sculpture. The brickyard and footpath have 25% of the area (752 sqm), and the rest of the land is planted with green trees, grass and statues representing 21 economies of APEC 2017 members in Vietnam (2,4).
Since its inauguration in January 2022 until now, the APEC site has become an ideal place to organize many cultural, artistic and other activities in the Hai Chau district (2).

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).

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).