For climate resilient communities, environments and economies in the Greater Mekong region.
Nature-based solutions offer a wide range of benefits to growing urban communities to help build resilient urban centres and surrounds.
The Resilient Urban Centres and Surrounds Phase 1 (RUCaS 1) used water management as a catalyst to promote urban climate resilience in 4 Mekong Countries – Cambodia, Lao PDR, Thailand and Vietnam. The program showed how hybrid nature-based solutions (NbS) can complement conventional infrastructure and deliver multiple benefits for flood management, urban cooling, water quality, biodiversity, public space, liveability and social inclusion.
The program was funded by the Australian Government through the Mekong–Australia Partnership (MAP) and delivered by Water Sensitive Cities Australia at Monash University, in partnership with the International Centre for Environmental Management (ICEM).




Embedding GEDSI principles is central to valuing and scaling NbS – understanding who participates, who benefits, who may be excluded, and what design, engagement, maintenance and monitoring arrangements deliver equitable climate resilience.
Across Phase 1, we moved from broad recognition of GEDSI as a cross-cutting priority to more practical and intentional application. In the early stages, GEDSI was reflected through stakeholder mapping, inclusive participation goals, country engagement and recognition that women, people with disabilities, low-income groups and other marginalised communities experience urban climate risks differently. As the program matured, GEDSI became more deliberately embedded in problem framing, option assessment, co-design, technical review, guidance development, monitoring and scaling discussions.
This progression was supported by actions such as appointing a dedicated GEDSI Lead, convening the GEDSI Technical Advisory Group and developing the Inclusive and Equitable Urban Nature-based Solutions: A Practical Guide and the accompanying Quick Guide. The guide is structured around the NbS project cycle: planning, development, maintenance, and monitoring, evaluation and learning. The quick guide includes practical prompts for each stage, as well as worked examples for both small-scale and large-scale NbS interventions to show how GEDSI principles can be applied in different contexts.
These actions helped make GEDSI more visible and practical across the program. They also strengthened the evidence base for how inclusion can improve the relevance, safety, accessibility and long-term sustainability of hybrid NbS.

Detailed case studies will demonstrate the Integrated Urban Climate Management (IUCM) process and use the Benefit–Cost Analysis (BCA) Tool and the Value Tool to quantify market and non-market benefits of NbS in monetary terms. Starting with a desktop long list, we refined the list during missions, via site visits, and meetings with local officials and others with shared interests or concerns (such as local government, academics, non-government organisations (NGOs) and civil society coalitions).
We consider GEDSI implications and opportunities for each site, using these to start conversations, consider implications for inclusive and participatory practice, and inform upscaling options for more GEDSI-responsive NbS design.
We have selected the following case study sites and are in the process of securing governance and management arrangements.

In November 2023, the RUCaS team held a significant Regional Conference and Training event to highlight the role of nature-based solutions (NbS) in addressing urban challenges in the Mekong region. Conducted both in-person in Bangkok and online with translation in five languages, the event was co-hosted by the Thai Government Department of Climate Change and Environment. Key sessions included a keynote by Professor Tony Wong on urbanisation and climate change, a high-level panel from Mekong countries, and discussions on advancing NbS use. The conference emphasised collaboration, policy development, and community engagement.
The training sessions focused on deepening understanding and building capacity in NbS. Topics included urban NbS fundamentals, economic analysis for NbS projects, and inclusive approaches for vulnerable groups, using the On Nut Waste Transfer Station as a case study. The event attracted 460 attendees, predominantly from the government sector, and received positive feedback. Recordings of all sessions are available for those who could not attend. Special thanks to the Thai Government, the Australian Department of Foreign Affairs and Trade, and all contributors.
The program builds on previous work on NbS in the Mekong region. It responds to interest from in-country to scale up the work done in Thailand and Vietnam.
It will also scale out the work to develop projects in Cambodia and Lao PDR.
Integrated Urban Flood
Management
INFFEWS:
Value Tool
INFFEWS:
Benefit: Cost Analysis Tool
A tool tailored to assessing investments
for water sensitive cities
The CRCWSC has produced research, guidelines and
tools related to the following topics:
Climate change
mitigation
Community
engagement
Economics and
business case














