The Alps are finally getting some snow these days. With several skiing competitions cancelled earlier (lack of snow and frost, or excess of rain), the ski station authorities were getting a bit nervous about the late start of the skiing season.
I asked European experts on Alpine climate change if the white slopes will melt entirely in the coming decades, and wrote this feature about it in the science section of De Standaard (you can go to the pdf to see the entire double page).
In November and the first half of December, snow cover has always been uncertain, claims Andrea Fisher from the University of Innsbruck. Ski stations are trying to open the season early for commercial reasons, but snow in the first part of December is a matter of luck, according to statistics of the past century. Only by the end of December, snow is guaranteed.
Still, there is a c lear trend. Ten of the last eleven autumns in France where the hottest in the past century, as Pierre Etchevers of the Centre d’Etudes de la Neige in Grenoble points out. The temperature has increased with 2° C in the Alps in the last 120 years and the warming is expected to accelerate. Regional precipitation patterns are changing as well. Moreover, warmth and rain are increasing the disappearance of the glaciers, and the melting of the high altitude permafrost could make mountain slopes unstable.
Climatologists like Wolfgang Seiler (Karlsruhe) predict a lot of trouble for the Alpine villages, with landslides, flash floods and dry summers. The disappearance of the glaciers and the short winters are already affecting the electricity supply in countries like Switzerland, where hydropower is a significant source of energy, warns Heinz Wanner of the University of Bern.
And skiers will have to move uphill, because positive winter temperatures make snow canons useless. The lack of snow is likely to put skiing stations at low altitude (up to 700 meter), like in Bavaria, out of business.
So, let’s have some fun in the snow while we still can…
Kim