So. So, today we are going to talk about the evolution of water resources management and at the end of the class you will be able to describe paradigm shift and evolution of water resources management in general. But also you can critically evaluate the importance of IWRM for water diplomacy and also water energy food nexus and its relation with water diplomacy and also importance of water diplomacy for SCE being sustainable development goals. Today's talk is regarding a new process, recent a process of order resources management and sustainable development goals and its relation with water diplomacy. In this figure, I try to summarize from taken from this references how the water resource management has evolved throughout the time. It has four metrics. You can see that from the centralized management to decentralized management in the vertical axis. And from centralized management, it means a centralized form of governance, where a stakeholder engagement and participation is the possibility of stakeholder engagement is very low. But when it moves to the decentralized form of governance, it can include stakeholder engagement from local peoples and local participations. And in the horizontal axis, you can see from the supply side management to the demand side management. In the left upper corner, this is the traditional development of water resources management, not only water resources management