The third workshop on water and adaptation to climate change in transboundary basins: “Making adaptation work” stressed the importance of transboundary cooperation, a key - but often overlooked - dimension of water and climate change adaptation. This was done through analysis andexchange of best practices, success factors and lessons learned from adaptation in transboundary basins, addressing all those who are responsible for the process of developing an adaptation strategyand addressing climate change impacts on water resources and other dependant sectors (such as health, agriculture, energy, navigation, development, etc), at the national and transboundary levels. The workshop was organised under the auspices of the United Nations Economic Commission forEurope Convention on the Protection and Use of Transboundary Watercourses and International Lakes (Water Convention) in cooperation with several national and international partners.