Development Banks Pour $19.6 Billion Into Global Water Projects, Raising Stakes and Questions
Ten of the world’s most influential multilateral development banks (MDBs) have committed a record $19.6 billion (€17 billion) to water-related projects in 2024, according to their first Joint Annual MDB Water Security Financing Report. This surge of financing was announced during the 4th International Conference on Financing for Development in Seville and follows a pledge these banks made last December at the One Water Summit in Riyadh to ramp up water sector support through 2030.
The MDBs behind this push include the African Development Bank, Asian Development Bank, Asian Infrastructure Investment Bank, European Bank for Reconstruction and Development, European Investment Bank (EIB), Inter-American Development Bank, Islamic Development Bank, New Development Bank, World Bank Group and the Council of Europe Development Bank. Their joint report reveals that nearly three-quarters of 2024’s water funding will flow into low-, lower-middle- and upper-middle-income countries, with projects ranging from modern drainage systems to advanced wastewater treatment.
The EIB alone accounted for more than a quarter of this year’s MDB water investments, underlining Europe’s financial muscle in this domain. Its soon-to-be-launched Water Resilience Programme is expected to raise EIB water lending by 50 percent to €15 billion from 2025 to 2027, potentially mobilising up to €40 billion worldwide over three years. EIB Vice-President Ambroise Fayolle framed the effort as a “shared priority” among MDBs to pair funding with technical know-how and long-term partnerships.
But these headline figures also mask deeper questions. MDBs present water infrastructure investment as critical for addressing an urgent global crisis. Around half of humanity already lives in areas grappling with water scarcity. Climate change is worsening droughts, floods and rainfall unpredictability, while outdated networks crumble under growing stress. A World Bank study estimates closing the global funding gap for universal water and sanitation would require annual spending to nearly triple, with even sharper hikes needed in Africa and fragile states.
The case for MDB involvement sounds compelling: big, experienced financiers backing underfunded governments to build climate-resilient water systems, driving social equity and public health. Yet what is often left unsaid is how these deals also position international banks, private investors and engineering giants to secure decades of returns through water tariffs, long-term maintenance contracts and debt repayments.
For international investors, water represents both a moral calling and a lucrative frontier. As populations swell and fresh water becomes scarcer, well-managed utilities and water infrastructure promise stable, often inflation-linked income streams. This is especially attractive in a world of low interest rates and volatile markets. Funds specialising in sustainable infrastructure are eager to co-finance MDB-led projects, which typically offer strong legal safeguards and government guarantees that reduce investment risk.
Meanwhile, MDBs benefit by locking in future influence over water sector reforms, tariff structures and regulatory frameworks in borrower countries. This soft power can sometimes lead to tensions when the need for private capital collides with the principle that water should remain a universally accessible public good. Who ultimately gains depends heavily on how contracts are written, how transparent procurement is, and whether tariff increases hit vulnerable households.
European involvement is particularly pronounced. The EIB has an extensive water portfolio that includes efforts like shielding Cotonou in Benin from devastating floods, carried out alongside the African Development Bank and World Bank. In Mongolia, the EIB is helping fund new wastewater facilities and drainage upgrades with the Asian Development Bank. In Cyprus, it has spent two decades co-financing nationwide water and sewerage improvements. These examples illustrate how MDBs blend European technical standards and local capacity building—though also how they tie recipient nations into long-term financial and regulatory commitments.
Critics caution that while such projects promise resilience, the historical track record of large-scale water initiatives is mixed. Past investments have sometimes failed to deliver anticipated benefits, run massively over budget, or even exacerbated inequality by prioritising industrial or urban users over poorer rural communities. Others argue that the profitability requirements attached to MDB-backed projects can discourage truly charitable models of water provision.
Still, few dispute that the world’s water systems are under enormous strain and that multilateral action is needed. With climate impacts accelerating, the MDBs’ collective move to publish an annual water financing report aims to enhance transparency and accountability. Whether this unprecedented wave of capital truly builds sustainable, equitable water access—or simply sets the stage for new financial dependencies—will hinge on careful oversight and whose interests ultimately guide the flow of investment.