RT Report T1 Transboundary Water Assessment Programme (TWAP) Vol. 6: Crosscutting Analysis - Transboundary Waters Systems: Status and Trends A1 United Nations Environment Programme, SN 978-92-807-3531-4 YR 2016 FD 2016 LK https://wedocs.unep.org/handle/20.500.11822/7663 UL https://wedocs.unep.org/handle/20.500.11822/7663 NO This volume of the TWAP reports presents a unique and first global overview of the contemporary risks that threaten international water systems in five transboundary water system categories, building on the detailed quantitative indicator-based assessment conducted for each water category. DS UN Environment Document Repository RD Sep 22, 2026