Restore wetlands and/or coastal ecosystems to dissipate the effects of flooding and/or storms

The frequent and severe floods that many cities in Lao PDR have been experiencing are causing a significant impact on the livelihood of local and vulnerable communities. To address the issues of flood and climate events, the Green Climate Fund has provided funding for the Lao DPR government to initiate the 'Build Resilience of Urban Populations with Ecosystem-Based Solutions in Lao DPR' project. The Ministry of Natural Resource and Environment of Lao, in collaboration with other related departments, universities, and provincial governments, is leading this project. The funding was approved in 2019, and the project is set to conclude by 2025. The project consists of four sub-projects, which will be implemented in four cities, including Paksan, Vientiane, Savannakhet, and Pakse. One of the sub-projects involves rehabilitating the Nong Peung wetland in Paksan city, which currently has no management plan and is negatively impacted by human activities and has been degraded in certain aspects. Natural vegetation has been lost in parts of the wetland, invasive alien plants are encroaching, and the natural water flow has been disrupted in places. The objective of this project is to develop a comprehensive management plan for Nong Peung wetland and implement various nature-based solutions to improve the ecosystem. This will involve removing invasive alien plant species, eliminating human-made barriers that obstruct natural flow, and planting appropriate native species. Currently, the project is in the planning stage with relevant stakeholders to determine the physical implementation site. (Ref.1,2,3)

Revitalizing Informal Settlements and their Environments (RISE) is one of the pilot projects carried out in the Batua neighbourhood (1.9 km2 area) of Makassar City (119 km2 area), province of South Sulawesi in Indonesia, which was commenced in 2017 and concluded in 2022 (1,2,3). Batua neighbourhood (six settlements of around 1,600 people) was the first demonstration site for this project which was completed in 2019 (3,4,5). The main challenge was that many households who lived in informal settlements lacked access to centralized urban infrastructure and faced threats from climate change (3,4). The project was proposed to reduce the impact of climate change on marginalized communities in Makassar by providing localized, water-sensitive interventions that addressed issues related to sanitation and water management (1,2,3,4). The introduction of water-sensitive solutions enabled targeted communities to recycle wastewater and rainwater, restore natural waterways, improve water quality, and reduce vulnerability to flooding (3,4). The RISE program initiative integrated nature-based solutions like wetland restoration, bio-filtration gardens (the process of using beneficial bacteria to clean water on a molecular level to remove contaminants), stormwater harvesting, filtration paths and new sanitation structures to improve wastewater management and diversify water resources through community-driven development (1,2,3,4).

The ‘City of 1,000 Tanks’ project offers a holistic solution to the problems of floods, water scarcity and pollution in Chennai (Ref. 1). The project's primary objective is to develop a "Water Balance Model" for the city, which involves collecting rainwater, treating wastewater and runoff pollution with decentralized nature-based solutions, as well as prevent climate-change-induced droughts and saline intrusion due to sea-level rise (Ref. 1, 2). This is achieved through developing various nature-based water management solutions and improving the recharge capacity of traditional temple tanks (Ref 1).
The project began in 2018, following the call for action event of the "Water as Leverage for Resilient Cities Asia" (a bilateral program spanning several Asian countries). The Water Balance Model is developed as a strategy with an incremental implementation process (Ref 1, 2). The project started with pilot projects and then progressed to flagship projects before full city-wide implementation (Ref. 3).

Bangladesh is a country prone to floods and waterlogging, which results in two-thirds of this nation's land being transformed into wetlands each year. As such, much land becomes unavailable and the restricted access to it causes food insecurity as well as severe environmental pressure on the flora, fauna and ecosystems. The impact is even more serious as agriculture is one of the most important contributors to Bangladesh's GDP (1).
To respond to most of the climate challenges and food insecurities, in 2007 the International Union for Conservation of Nature (IUCN) and the humanitarian agency Care International, alongside other partners (including the Bangladeshi government), launched floating gardening (artificial islands, that simply rise and fall with the swelling waters) pilot project in the peri-urban area of the Gopalganj and other close by districts (1,2).
Floating gardens known locally as Baira are an old practice of crop cultivation in the wetlands of Bangladesh, the previous agricultural land, which got destroyed by the floods. The practice consists of piling together a number of dense layers of aquatic weeds like water hyacinth, duckweed, or paddy stubs and letting them decay. Afterwards, they're combined with silt and cow dung and inserted with plant/vegetable seeds left to flourish. On these beds, farmers cultivate fruits and vegetables like turmeric and ginger as well as okra, bitter gourd, snake gourd, spinach, and brinjal. In addition to veggies, rice seedlings can occasionally be raised. As a result, floating gardens are available to everyone, affordable, dependable, and completely in harmony with nature. (2,3) Furthermore, this aquatic farming practice has been shown to be highly effective in tackling the consequences of climatic variability and climate change like prolonged water-logging (3). The intervention has benefited approx. 2,000 families in the district of Gopalganj and it has opened the route for further projects that supported the practice of floating gardens (4).

The Bakhawan Eco-Park is a 220-hectare mangrove forest located in Kalibo, Aklan province, Philippines, that started as a reforestation project in 1990. It was a joint project of the local government and a non-government organization, Kalibo Save the Mangroves Association (KASAMA), with the aim of reforesting the muddy shoreline of New Buswang district to protect the community from floods and storm surges [1,2]. Aside from preventing floods, the eco-park also provides locals with livelihood opportunities, mitigates the effects of climate change, and serves as a habitat for various mangrove tree species, birds, and marine life [1,2]. The project's success is largely attributed to the active involvement and support of the local community, with some families playing an integral role in the reforestation program. [2] Notably, the involvement of local women in the NBS initiative has contributed to the success of mangrove conservation. Some women have also taken on the task of policing the mangroves to prevent illegal tree-cutting by trespassers [4]. Today, the eco-park is acknowledged as one of the most successful mangrove reforestation project in the Philippines [1]

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).

As an archipelagic state, Indonesia consists of 18,000 islands and 18,000 km of coastline, which is inhabited by more than 60% of the Indonesian population. Its geographical position exposes the island country to several climate change challenges, ranging from an increase in high temperature to a sea level rise and severe floods. One of the cities affected by flash floods, flooding, and landslides is Pekalongan City, crossed by 7 rivers and home to approx. 300,000 people. Inundations can reach 50-100 cm in many communities, causing distress, evacuations, and severe damage to infrastructure and food security as well as loss of income for the inhabitants that work in the fisheries sector, in the Batik industry (the process of traditionally dyeing fabric, performed on cotton and silk using a resist technique) or in paddy rice farming. (1)

Responding to the climate risks became of utter importance to the municipality of Pekalongan City. To help the Municipal Government of Pekalongan City to overcome the problem caused by climate change, Kemitraan (Partnership for Governance Reform in Indonesia), an implementing and advocacy NGO developed the project on Safekeeping-Surviving-Sustaining towards Resilience, a 3S Approach. The aim was to Build Coastal City Resilience to Climate Change Impacts and Natural Disasters in Pekalongan City, Central Java Province. This was approved on 29 October 2020 and is currently entering its implementation phase. The project will focus on building resilience to climate change impacts with interventions of hard and soft nature. More precisely, the project aims to build capacity and resilience through training, mangrove ecosystem restoration and enhancement of coastal protection, and development of a Local Climate Adaptation Action Plan and implementation of climate-smart actions (1,2). The project aims to reach these goals by employing a collaborative and participatory approach that is locally driven and involves those most at risk. The program is expected to end in April 2023 (1).

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)

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]

"Siargao It Up" is the mangrove conservation programme in Del Carmen, Siargao Islands of the Philippines. The municipality of Del Carmen hosts the largest mangrove forest in the Philippines – consisting of 4,871 hectares as of 2018. This mangrove forest is the habitat of rare and endangered species of flora and fauna both in marine, wetland and terrestrial areas. This ecosystem helps maintain the island's ecological balance by providing rich breeding grounds for aquatic lives. Furthermore, the forest plays a key role in capturing and storing carbon and helps the Philippines to meet its goal of carbon emission reduction. In addition to creating habitats and storing carbon, the forest also protects the community from the inevitable effects of climate change disasters. Recently, in December 2021, it was able to protect the residents from the onslaught of Typhoon Odette. [1, 2, 3]