This Dialogue will be interesting to all water managers, environmental practitioners, decision makers, researchers, and activists alike. While the O2 2015 Event focus is on topical environmental issues, the DWG 2015 focuses on water issues in depth and can offer some insights into other natural resources and social systems at play. Attending these discussions will offer a unique opportunity to interact with many scientists and researchers from several regions of the world, with confirmed participation of specialists and leaders from the North, Central, and South America, Africa, Europe, Asia, and Australia. Also, the UN and OAS systems will be participating in the Dialogue. Thus, you should be part of this interesting dialogue on water, because water matters!