“…In this context, snowmaking is able to increase the number of skiable days, reducing, by contrast, the vulnerability of the ski resorts [20,24]. The same studies, however, assert that the concurrence of several factors [11], including the location and above all the economic and environmental stress deriving from the intense use of snowmaking, will pose a critical threat to the economic sustainability of several ski resorts in the coming years [5,25]. As Abegg et al [26] point out, the costs of snowmaking are important, especially for the small and medium-size installations, and can be divided into three different factors: investment, operational, and maintenance costs.…”