The International Symposium on Integrated Water Resources Management (IWRM) is a regular symposia organized by the International Commission on Water Resources Systems (ICWRS) of IAHS. The 6th Edition is co-organised with EGU and will focus on the topic Evolving Water Resources Systems- Understanding, Predicting and Managing Water-Society Interactions. The conference aims to bring together experts from different countries and expertises in a stimulating environment to present research ideas and results to bring hydrology into the future by reaching an improved connection with society. Therefore, the conference will represent a key step to provide a first summary of the relevant research activity that is being carried out on the theme of hydrology and society and will be an opportunity to discuss the next editorial activities planned on the subject. The hydropwer plant of the Aswan Dam The conference is framed within the Panta Rhei research initiative of the International Association of Hydrological Sciences and will constitute an important benchmark for water resources management during the Scientific Decade 2013-2022. The symposium will focus on water resources assessment and management in a changing environment and therefore will particularly concentrate on the two ways interaction between water and society. Water resources systems, catchment hydrology, eco-hydrology, groundwater hydrology, water security and socio-hydrology will be the driving themes. The conference will host the first Peter Loucks Lecture, a distinguished presentation given by a renowned scientist on water reources management. The Lecture is promoted by the International Commission on Water Resources Systems of IAHS. The first lecturer will be Peter Loucks himself, who will deliver the lecture during June 5, in Bologna.