Water underpins food security, energy systems, healthy cities, industrial development, ecosystems, and economic productivity. Financing water is therefore not merely financing infrastructure; it is investing in resilience, stability, and sustainable development.
However, recognising water as an economic asset class raises a fundamental question: how can countries translate climate commitments into investment opportunities capable of attracting capital at the scale required? This question will be central to global discussions ahead of the 2026 United Nations Water Conference, where the focus must increasingly shift from ambition to implementation.
Across the Middle East, climate ambition has advanced significantly. Countries have strengthened their Nationally Determined Contributions (NDCs), developed National Adaptation Plans (NAPs), established long-term climate strategies, and integrated resilience into broader economic transformation agendas.
Water security consistently emerges as one of the region’s highest priorities. This reflects a fundamental reality: climate change is experienced largely through water. Rising temperatures, prolonged droughts, groundwater depletion, changing rainfall patterns, and increasing flood risks are already affecting economies, livelihoods, and ecosystems across the region. The challenge facing countries today is therefore not a lack of ambition. The challenge is converting ambition into investment.
The missing link between climate plans and finance
Most countries now have climate strategies, sectoral plans, and identified investment priorities. Yet relatively few of these priorities successfully progress into technically sound, financially viable, and institutionally deliverable investment programmes.
Between climate commitments and financial close lies what is increasingly recognised as the investment preparation gap middle gap. This missing middle includes climate risk assessments, feasibility studies, engineering designs, financial modelling, environmental and social assessments, institutional strengthening, legal structuring, and transaction preparation.
Although these activities represent only a small proportion of total investment costs, they largely determine whether projects can attract finance. Climate finance institutions do not finance strategies alone. Development banks do not lend against policy documents. Private investors do not invest in aspirations. They invest in programmes supported by credible institutions, clear governance arrangements, robust technical preparation and appropriate allocation of risks and returns. Bridging this gap is therefore one of the defining challenges for climate finance in the Middle East and other climate-vulnerable regions.
From financing projects to organising investment
The water sector is often described as suffering from a shortage of finance. The reality is more complex. Water is not only facing a financing gap; it is facing a shortage of investment platforms capable of organising finance around national priorities.
Many countries already have water strategies, climate plans, basin plans, and infrastructure priorities. What is often missing is a mechanism that connects these priorities into a coherent investment framework capable of aligning public finance, climate finance, multilateral development banks, development finance institutions, and private capital.
This requires a new approach for the next evolution of water-climate finance, such as the development of national water co-investment platforms. These platforms are not simply coordination mechanisms between donors and institutions; they can be government-led investment platforms designed around national priorities, bringing together different forms of capital around a shared pathway towards water security and climate resilience. The objective is not to identify one financier for one project. The objective is to create an investment architecture where different sources of finance contribute according to their comparative advantage.
Water as foundational climate infrastructure and an economic asset class
Treating water as an economic asset class represents a fundamental shift in how investment decisions are made. This does not mean commodifying water or reducing it to a financial instrument. Water remains a fundamental human right.
Rather, it means recognising that investments in resilient water systems generate measurable economic value. Reliable water supplies support agricultural productivity, protect food systems, enable industrial growth, strengthen energy security, reduce disaster losses and improve the resilience of cities and communities.
The Global Commission on the Economics of Water highlights that water must be understood as a system connecting climate, economies, ecosystems, and societies rather than as an isolated resource. Similarly, the UN World Water Development Report 2024 emphasised that water security is closely linked with prosperity, peace, and sustainable development. This broader understanding changes the investment narrative. Water infrastructure is not simply a cost to governments. It is productive infrastructure that protects economies from climate shocks and generates long-term resilience dividends.
Climate finance has a critical role in this transition. Its purpose is not simply to provide concessional resources. Its strategic value lies in addressing the barriers that prevent investments from reaching financial close.
Within a water co-investment platform, different sources of finance can play complementary roles. Governments provide policy leadership, strategic direction, and public investment. Public finance establishes enabling environments and supports essential infrastructure. Climate finance provides catalytic capital by supporting project preparation, institutional strengthening, climate risk management, and investments where commercial financing alone is insufficient. Multilateral development banks and development finance institutions provide long-term financing, technical expertise, and transaction support. And private investors contribute innovation, technology, and operational capacity where appropriate risk structures and revenue models are established.
The objective is not replacing public finance with private capital. It is creating a financing ecosystem where each source of capital performs the role it is best positioned to deliver.
Finance follows confidence; investment follows preparation
Successful water co-investment platforms must be firmly anchored in national ownership. Experience from climate finance shows that confidence is the foundation of investment. Confidence comes from strong institutions, transparent governance, credible pipelines and predictable decision-making processes.
Effective platforms should be led by governments and aligned with national climate and development priorities. They should establish clear investment pipelines linked to NDCs, NAPs, and sector strategies and provide structured project preparation support. They should combine grants, concessional finance, and commercial capital strategically, while harmonising environmental, social, and fiduciary standards across partners. And they should establish transparent monitoring and accountability systems.
National water co-investment platforms can also provide a foundation for transboundary water co-investment platforms, where countries jointly develop investment pipelines around shared climate risks and regional public goods. While regional contexts differ, countries facing interconnected climate risks can strengthen investment pipelines and mobilise finance more effectively through structured cooperation.
A new investment architecture for the 2026 UN Water Conference
The 2026 UN Water Conference provides an important opportunity to advance a new generation of water finance. The objective should not only be to mobilise more resources. It should be to improve how investment is organised. National water co-investment platforms offer a practical pathway for achieving this transformation. They provide a bridge between NDCs, NAPs, and investment decisions and they recognise water not simply as a sector, but as foundational climate infrastructure and a strategic economic asset underpinning resilient development.
The future of water security depends not only on how much finance is mobilised, but on how effectively it is organised. The countries that succeed in the next decade will not necessarily be those with the most ambitious commitments to climate. They will be those that build the institutional and financial architecture capable of turning commitments into bankable investments.
The opinions expressed in this article are solely those of the author and not Frontier25.
References
Global Commission on the Economics of Water (2023). Turning the Tide: A Call to Collective Action.
UNESCO/UN-Water (2024). United Nations World Water Development Report 2024: Water for Prosperity and Peace.
Green Climate Fund. Climate Investment Planning and Mobilisation Framework.
Green Climate Fund. Country Platforms for Climate Finance.
Green Climate Fund Project FP254. Scaling Resilient Water Infrastructure Facility.
Green Climate Fund. Regional Platform for Catalysing Resilience and Climate Action in the Caribbean.
OECD (2025). Roundtable on Financing Water.
The Water Diplomat (2026). Financing Water as Foundational Climate Infrastructure: Turning Vision into Action for the 2026 UN Water Conference.
