"Less is more" here means above all "more dangers": glacier melt affects not only tourism but also biodiversity, the water cycle, and the energy sector — and thus important pillars of our supply security. Since the retreat can now only be partially halted, measures focusing on adaptation in these areas need to be taken.
Detailed information can be found in the sources listed below.
Why we shouldn't be indifferent to the decline in snow trends either can be read in our knowledge snack: