The management and utilization of water storages such as dams and reservoirs have played a central role throughout history in ensuring a steady water supply during dry periods, supporting various sectors including domestic, industrial, and agricultural needs. However, the increasing water demands due to population growth coupled with the ongoing climate extremes with their impacts on drought and precipitation patterns accentuate the crucial need for efficient and sustainable water reservoirs management. Projected global warming is expected to influence the operation and storage efficiency of water reservoirs (e.g., via intensified evaporative losses) posing serious risks to a wide range of stakeholders. Considering the intensity and frequency of recent climate extremes (drought, heatwaves, intensive precipitations), it is more important than ever to develop sustainable and effective water management as well as strategies that incorporate various environmental and socio-economic drivers and pressures affecting water reservoirs. This session solicits theoretical and experimental analyses that investigate managing both natural and human-made water reservoirs under different local and global change scenarios and identify the associated risks to sustainable water reservoirs management. The session aims to unite various contributions that present effective strategies, tools, and technologies to enhance sustainable management and implementation of freshwater storages. This includes, but not limited to, remote sensing methods, in situ measurements, AI-based approaches, and hydrological models for investigating present and future dynamics of freshwater availability, risk assessments, storage efficiency enhancement, and water allocation policies to devise the necessary action plans and appropriate adaptation schemes to cope with water scarcity in a warming climate.