Water security is emerging as one of the defining investment and policy challenges of the coming decades. Yet despite growing financing needs, sustainable investment in water and freshwater ecosystems continues to fall short. Bond markets could help close this gap by mobilising long-term capital at scale.

While green, sustainability and blue bonds have expanded rapidly in recent years, their use for water security and freshwater investments remains limited. At the same time, new financing approaches, including sustainability-linked, municipal and impact bonds, are creating opportunities to leverage capital markets to support sustainable water investments.

Which bond instruments hold the greatest potential for freshwater-related investment? How can blue and water-related bonds evolve beyond marine conservation? What policy, regulatory and market reforms are needed to attract institutional investors? What is preventing bond markets from financing water security at scale?

Join us at the next OECD Green Talks LIVE webinar on 9 July 2026 from 15:00 to 16:00 CEST as we discuss these questions during the launch of a new OECD report Financing Water Security: Models and Approaches for Investments that Last. The discussion will explore how bond finance can be scaled to support water security, examining the role of governments, public financial institutions and private capital in building stronger pipelines for investment and increasing the attractiveness of water-related assets.

Following a presentation of the report’s key findings, a panel of experts and policymakers will share their reflections and country insights.