Increase or improve urban vegetation cover to help reduce outdoor temperature

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]

Climate change has become a constant topic for the administration of Israel, mainly due to the country's exposure to the effects of climate change. These include water shortages and pollution, the shrinking of the Dead Sea, waste production and disposal, air pollution and increased population density. Haifa is no stranger to these changes and the administration of the city is trying to align itself with international organisms that can help it to overcome such critical situations. The City of Haifa’s leadership strives to join the capitals of the world, share knowledge and establish operative cooperation. In December 2020 it joined the Paris Agreement, and in July 2021 signed the Urban Nature Declaration pledging a greener and more sustainable city with the 40C Cities Climate Leadership Group, an international organization of about 100 major cities worldwide. On a local level, the city initiated Haifa2030, a program that aims to prepare for global warming and to develop strategies for urban resilience. Among the actions taken into account by the municipality refers to green roofs, which the city intends to transform into an overall city program. Two demonstration roofs have been erected on municipal buildings, and additional roofs are planned. (2,3)

The Armenia Tree Project is a national initiative founded in 1994. The project engages in involving different community members in an urban planting program, environmental education and outreach. ATP has targeted the most vulnerable communities with the most need for greenery. The focus and attention that is given to these areas help trees to grow and flourish but also creates a stronger bond between the inhabitants and the land they live on. Major greening sites are typically public parks, schools, kindergartens, cultural centers, military bases, churches, historical monuments and other significant landmarks. ATP also focused on Yerevan, the capital of Armenia which has become the "theatre" of many planting campaigns. From a climate change perspective, the project addresses issues of clean air and temperature regulation, as Armenia confronts a frequency of extreme weather events, worsening desertification and land degradation. From a biodiversity perspective, the project aims to conserve the country's rich biodiversity and to restore its ecosystems. (1,2,3)

Kibera is Nairobi's largest slum/informal settlement. Kibera houses about 250,000 people and is the biggest slum in Africa and one of the biggest in the world. The Government owns all the land in this settlement. 10% of people are shack owners and many of these people own many other shacks and let them out to tenants. The remaining 90% of residents are tenants with no rights. Most of the inhabitants confront themselves with a food crisis. The project at Kibera is a recent initiative of the National Youth Service (NYS), a government agency that promotes youth affairs through the ministry of devolution and planning. The approach is seen as a cheap and healthy solution to food insecurity and runaway unemployment in Nairobi’s slum. The project also addresses climate change as food insecurity is related to an intense period of droughts: longer periods of drought (likely a result of climate change) in sub-Saharan Africa, meant the farmers had to depend on rainfall to water their crops. From a biodiversity point of view, the project will help with the urban biodiversity restoration (1,3)

Kampala called ‘The Green town’ its capital and the most important city in Uganda. The town nearing the Lake Victoria into the South, depicts both colonial and contemporary architecture and has a population of approximately 2 million people, spread over 21 slopes. The city also has a continuous flux of human capital (caused by the effects of climate change- e.g. droughts, erratic rains) from the country's rural regions which puts a tremendous amount of pressure on the environment, through inefficient resources and unstastainable settlement patterns. As a response, the city of Kampala tried to address climate change mitigation by initiating a large tree planting project in Kampala and its outskirts. (1,2) The plan identified “proper management of urban natural assets” and the planting of 500,000 trees as ways for Kampala to become a lower carbon and more climate-resilient city. One of its desired impacts was “increased green spaces and trees in households for improved health and income”. (3)

As part of the "Urban Forest Policy", the first Miyawaki urban forest was created in an area of 2,850 square meters in Lahore, Pakistan. The initiative was a result of a public-private partnership between Lahore Development Authority (LDA) and Restore Green. The project was carried out under the PM Khan 10 billion tree plantation drive. Miyawaki is a technique pioneered by Japanese botanist Akira Miyawaki, which helps build dense, native forests. The approach is supposed to ensure that plant growth is 10 times faster and the resulting plantation is 30 times denser than usual. It involves planting dozens of native species in the same area and becomes maintenance-free after the first three years. [1, 2, 3]

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 Urban Micro-Lungs is an Urban Living Lab project in the East of Amman, Jordan that applies the Miyawaki methodology for afforestation to create new green spaces. As part of the project special urban forests were created with the aim to improve the quality of life in dense and deprived urban areas, tackle climate change caused problems such as the urban heat island effect while also supporting local biodiversity. The project was initiated by the Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) on behalf of the German Federal Ministry for Economic Cooperation and Development (BMZ) in cooperation with the Ministry of Environment and the Greater Amman Municipality, TAYYUN Research Studio (1,3,4). While the project was just completed in 2021, "the Urban Living Lab has shown the feasibility of creating green spaces even in adverse conditions characterised by dense construction, high degree of surface sealing and lack of open spaces." (1)

Recognising the benefits which urban forests bring to its citizens, Salvador has committed to protecting and restoring the Atlantic Forest, and has developed its own local framework which goes beyond national requirements (Ref. 1). The city has launched several programmes under its 'Salvador, Capital da Mata Atlantica' initiative, which together aim to restore the forest which has "suffered from severe deforestation" (Ref. 1). Included under the umbrella initiative are programmes such as the "'Delivery of trees', recovery of parks and collective planting" (Ref. 4).

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).