The document outlines a research initiative by ETH Zurich and PRIO focusing on quantitative and qualitative analyses of water-related events in 35 Mediterranean and Sahel countries from 1997 to 2009. The study aims to collect and code data on cooperative and conflictive water events, employing a new event data set to explore socio-political and climate factors influencing water conflicts and cooperation. It also discusses the methodology used for data collection, coding procedures, and plans for future qualitative case studies to further understand the dynamics of water-related issues.