Professor Maciej Zalewski (seated, right), Director, ERCE, Polish Academy of Sciences (Poland), and Robert Pietrowsky (seated, left), Director, USACE IWR & ICIWaRM, under the auspices of UNESCO (USA), signing a MOU in Beijing China on 17 May 2016, with Dr. Blanca Jimenez-Cisneros, Director, UNESCO Division of Water Sciences and Secretary, International Hydrological Programme (standing, right) and Giuseppe Arduino, Chief, Ecohydrology, Water Quality & Water Education Section, IHP Secretariat (standing, left).