Mountain landscapes and communities are highly sensitive and vulnerable to climate change. Tourism in mountain regions is highly dependent on natural resources and attractions which are very sensitive to climatic changes. This systematic review analyzing 276 papers, provides a comprehensive analysis of scientific literature dealing with climate change impacts on mountain tourism. While the impacts on the snow season are predominantly negative, impacts to summer season activities range from positive to negative. Contradictory results and lack of research in some regions and tourism activities means the overall impact is far from clear. We identified seven key knowledge gaps: underrepresentation of studies for South America and Africa, lack of appropriate data and indicators, an all-season perspective and investigation of opportunities, economic and socio-political consequences for mountain communities, the need for better science communication, and a lack of studies addressing liability and regulatory risks. Increasing our multidisciplinary understanding of potential climate impacts on mountain tourism and engaging stakeholders to prepare for the projected changes will help local populations in mountain communities create applicable and effective climate adaptation strategies.

Winter tourism is highly sensitive to climate change. The sufficiently studied altitudinally dependent line of natural snow reliability is losing its relevance for skilift operators in Austria, where 59% of the ski area is covered by artificial snowmaking. But the diffusion of snowmaking facilities cannot be monocausally linked to climate change, as trends in tourism, prestige, and competitive advantage are important factors. Despite the fact that snowmaking is limited by climatological factors, skilift operators trust in technical improvements and believe the future will not be as menacing as assumed by recent climate change impact studies. The aim of the present study is to define reasons for the diffusion of snowmaking systems and to determine whether snowmaking can be a viable adaptation strategy despite ongoing warming, using a simple degree-day model. Results obtained with this method of assessing technical snow reliability show that current snowmaking intensity will not be sufficient to gu...