 The article discusses the importance of mountains as sources of fresh water for our world, but how climate change could alter their role in global water resources. The authors examine 11 case study regions to provide a global overview, identify research gaps and formulate recommendations for research, management, and policy. They focus on highland lowland areas, including mountain areas and adjacent lowland areas, and identify research priorities such as precipitation, snow water equivalent, soil parameters, evapotranspiration, sublimation, groundwater, and enhanced warming and feedback mechanisms. The authors recommend advancements in the management of mountain water resources under climate change through improved interaction between researchers, managers, and policymakers, as well as more detailed regional studies and reliable scenario projections. They conclude that effective management of mountain water resources requires integrative research and continuous interaction between stakeholders. This article was authored by D. Viviroli, D. R. Archer, W. Bittart, and others. We are article.tv, links in the description below.