Explore a comprehensive conference session from the 2011 AGU Fall Meeting focusing on the evolution of water management paradigms. Delve into seven presentations covering crucial topics in hydrology and water resources management, including the role of hydrology in decision-making, integrated research needs, social disparities in drinking water quality, water rate structures, social sustainability in small-scale water systems, watershed management, and complex adaptive systems in urban water resources management. Gain insights into the challenges facing water management, such as hydrological uncertainty, over-utilization of sources, climate change impacts, and declining water quality. Understand the importance of hydrology in analyzing and organizing uncertain data for effective decision-making in water resource management.