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Have you ever wondered what secrets a single drop of water from the Danube River might hold? At this year’s Long Night of Research on 24 April 2026, the ICPDR invited visitors to find out at the Vienna International Centre (VIC).

Geneva, 17 March 2012. The United Nations Economic Commission for Europe Convention on the Protection and Use of Transboundary Watercourses and International Lakes (UNECE Water Convention), adopted in Helsinki, Finland on 17 March 1992, celebrates its twentieth anniversary today. It is the only international framework agreement in force on transboundary freshwater.