The year 2025 marks the 50th anniversary of the Intergovernmental Hydrological Programme (IHP) and 60 years of UNESCO's dedication to water sciences. Since its inception, UNESCO has contributed to advancing water research and management, addressing global water challenges through international cooperation and scientific excellence. The IHP, as UNESCO's flagship water science programme, has played a pivotal role in fostering scientific knowledge, technical innovation, and education in water resources management. This anniversary represents not just a celebration of past achievements but also highlights UNESCO’s ongoing commitment to ensuring water security for future generations in an era of unprecedented environmental change and growing water demands. Learn more: unesco.org/en/ihp #ScienceForWater