Improved stormwater management

The municipal government of the Yiwu city in China has launched the Green Lungs of the City Project (GLCP) in 2019. The overarching goal was to build a green lung, which will create more green spaces for residents in Yiwu, mitigate environmental pressures and improve the city's resilience to climate change. Under the project, a green corridor was created to reconnect the roads, rivers, ponds and lakes where different tree species were planted. Additionally, wetlands were constructed and restored to improve resilience against climate change disasters. The project is still in the ongoing phase, and a forest-wetland ecological park is under development in the city's central area. The GLCP aims to use different types of NBS elements to promote sustainable urban development and to provide multiple ecosystem services to the citizens in a highly urbanised area. [1]

One of the first public institutions to rise to the climate change challenge in the Philippines is the LLDA, which unveiled a two-wing, four-story green building in Quezon City to mark its 48th anniversary in 2014.
Reflecting the critical mandate of the LLDA to protect the country’s largest freshwater lake, the LLDA building features its own water treatment facility, material recovery facility, and a rain collection system that can hold 60,000 gallons of water. In order to be certified by the Building for Ecologically Responsive Design Excellence, several greened areas have been installed in the building: two “pocket gardens” on intermediate levels and a green roof (Bio Roof) which covers an area of 208 m2. The Bio Roof is integrated within the building’s structure. Its vegetative layer protects the waterproofing membrane from climatic extremes, which allows for the reduction in maintenance and the reduction in the size of stormwater handling facilities. [1]

Park Podnikolie, with an area of about 100 hectares, is part of the water-green frame of the city and is included in the conservation zone of the historical and cultural value of the city of Mogilev [4,11]. Since olden times on the territory of Podnikol, there were up to 400 manor plots, occupied mainly by vegetable gardens. Now Podnikolie is a large park, which has become a favourite place for residents and guests of the regional centre [1]. More than 1125 tree saplings have been planted on the territory of Podnikolie to preserve the integrity of the historical ground, the historical territory [1,9,10,11]. Thus, the park is also called the "green heart" of Mogilev city. The densely planted area is officially a quiet recreation area where people "merge" with nature [1,2,6,10]. The project's goal is to improve the urban management system, promote the implementation of the principles of green urban planning, and improve citizens' quality of life through effective cooperation between local authorities and the population [2,9,10].

As a solution to the increasing population, pollution and high energy consumption, the municipal government of Shiraz has launched the Green City project in 2008. The main aim of this initiative is to reforest the city's periphery and encourage citizens to plant gardens on rooftops and the private sectors to adhere to the city’s development plan with all construction projects. [1]

The intervention targeted a section of the Dominguez Creek for restoration, with the aim of achieving a "multi-benefit project [which] creates passive and active recreation opportunities for park-poor communities, reestablishes native riparian plantings and captures stormwater before entering the channel along the Dominguez Creek in cities of Gardena and Hawthorne" (Ref. 2). Previously being characterised by the local community as a “Triple U” (Undesirable, Unsafe and Unusable) area, the project aimed to support a variety of environmental, sustainability, and humanitarian activities (Ref. 1). The nature-based solution interventions which were implemented as a result of the project mainly pertained to the planting of in situ trees, shrubs and groundcover plants; restoration of the riparian habitat; temporary installation of a "mini-urban forest for a shaded respite from the harsh downtown streetscape"; aiding in stormwater capture; conservation of water resources through using native plant species; and creating "watershed awareness" (Refs. 1, 2, 4, 5 and 8).

Senegal, like many other West African countries, is in an unprecedented position when it comes to the threats climate change poses. Climate scientists predict that the country will likely experience increased temperatures, decreased annual rainfalls, a rise in sea levels, and an increased frequency of heavy rainfall events. Automatically these events will change drastically the social and economic structures of the country and are reasons for concern for the people of Senegal and their government. For example, the city of Thiès is in an area where environmental degradation is very advanced. The tree cover is in a situation of extreme fragility due to tree ageing or abusive tree cutting. To address many of these concerns, the city of Thies is trying to become sustainable through the development of green spaces that are expected to restore the city's ecological dimension and contribute to the reduction of greenhouse gases and the improvement of the living environment. (1,2)

The City of Fort Collins is "taking steps to restore flows, fish passage, and ecological function" of Colorado's Cache la Poudre River (Ref. 6). The river was "heavily manipulated for irrigation and mining" throughout the early 20th century (Ref. 6), and today continues subject to the impacts of gravel mining, agriculture and urbanisation (Ref. 1). Regional climate change predictions further complicate our ability "to understand how the river’s hydrology and ecology may respond to warming climate scenarios" (Ref. 1).
The City of Fort Collins was, therefore "invested heavily in this urban river through extensive planning efforts, purchase of approximately 700 hectares of lands within the river’s floodplain, projects to address stormwater control and conveyance, water quality management, and acquisition of in-stream flow water rights", and in 2011, the City’s Natural Areas Department published the Cache la Poudre River Natural Areas Management Plan which outlined "opportunities and challenges in supporting the river’s ecological function and reducing risks to life and property during significant flood events", particularly through the implementation of nature-based solutions (Ref. 1). A suite of nature-based solutions has since been proposed and implemented by the City of Fort Collins, two of which are the Sterling Pond Ecological Restoration (also referred to as North Shields Ponds), and the McMurry Natural Area Ecological Restoration (Refs. 1 and 2).

Ecosystem-based adaptation planning in Osh will support the Government of the Kyrgyz Republic in establishing its National Adaptation Plan (NAP) process and is consistent with the government’s strategic vision for climate change adaptation. Additionally, this project also contributes to the Green Climate Fund (GCF) and UNDP’s objectives by increasing resilience for the most vulnerable people, communities, and regions, by strengthening institutional and regulatory systems for climate-responsive planning and development, and by strengthening adaptive capacity and reducing exposure to climate risks. The priority sectors for the project are: (1) disaster and emergency management; (2) health; (3) biodiversity conservation; (4) and agriculture and irrigation water. The relevant agencies and stakeholders of these four sectors will be key to ensuring these plans catalyse investments to enhance adaptive capacity in the city. [1, 2]

Eco-district creation in Ulaanbaatar comes under the Ulaanbaatar Green Affordable Housing and Resilient Urban Renewal Project (AHURP). The planned development areas are hotspots of greenhouse emissions and air pollution, mainly due to the widespread use of coal for heating and cooking. The project will transform the highly climate-vulnerable and polluting "ger" areas (traditional Mongolian tents) into zones that are low-carbon emitting, climate-resilient and affordable. This will be done through low-cost urban infrastructure, public facilities, and social housing units. The project's five phases will deliver about 20 eco-districts or sub-projects, with each covering an average of 5 ha. The project is a large-scale demonstration initiative that will leverage private sector investment to deliver affordable and green housing stock, and redevelop "ger" areas into urban areas that are resilient to climate change, contribute to decreased air and soil pollution, and will provide a liveable urban environment to "ger" area residents. It will also establish policies, mechanisms, and standards for sustainable affordable housing and green urban redevelopment. [1, 2, 3]

Uruguay is highly vulnerable to climate change and its cities particularly vulnerable to the adverse effects of climate change, including extreme events such as droughts, floods, heat and cold waves, strong winds, tornadoes, hailstorms, frosts, heavy rains and severe storms. According to the latest census in Uruguay, more than 93 per cent of its population lives in urban areas. Montevideo is one of Uruguay's cities most affected by the changing weather. In 2014 most of the city has been left underwater after suffering its worst flooding in 50 years so much so that the city was declared a multi-hazard risk zone. Thousands of homes and businesses have been damaged in the process. This has been described as the worst flooding in almost a century. In 2018 the municipality developed the idea of rain gardens to counteract heavy rains and flooding effects. Initially, it was adopted in a number of neighbourhoods but over the years it has been extended to the entire area of Montevideo (1,2,3)