The Water Tribune, whose role it is to provide the intellectual foundations for Expo Zaragoza 2008 will provide a platform for more than 2000 international experts in the field of water, over ten Themed Weeks divided into 25 major themes. Scientists, technicians, administrators and users, entrepreneurs, politicians, philosophers, academics, researchers, communicators, intellectuals and students will put forward their proposals for public policies, some of which will be new, and others which will recall the valuable knowledge gained in the past.
 
 Climate change, the geopolitics of water, health and education will all be elements which are present in the Themed Weeks. This is not only meant for debate, but also as a vehicle to find solutions to the new paradigm for water in the 21st Century. The work sessions, in which experts and members of the public will participate, will take place from 10.00 am to 4.00 pm in the Water Tribune Pavilion. In the final days of Expo Zaragoza 2008, and as a culmination to the Themed Weeks, the International Symposium on Water and Sustainable Development will take place on 11th September. This event will synthesize and bring coherence and meaning to the results and proposals which will be fully documented and publicly announced at the reading of the Zaragoza Charter.

 The Themed Weeks will be broadcast to the five continents, in collaboration with the World Bank, through several videoconference sessions which will allow the dialogue on water to be carried beyond the banks of the River Ebro.