Melting Permafrost Threatens Iconic Swiss Alpine Huts

Switzerland's iconic Alpine huts, long a cornerstone of the country's mountain culture and tourism, are facing an existential threat from climate change. The Schweizer Alpen-Club (SAC), which manages many of these structures, reports that rising global temperatures are causing widespread damage and disruption across the high Alps.

Originally built in the late 19th and early 20th centuries as refuges for scientists and explorers, these huts now serve as vital waypoints for hikers. Most are anchored in permafrost, a layer of permanently frozen ground that acts as a natural concrete foundation, keeping the steep terrain stable. However, as temperatures climb, this permafrost is thawing, destabilizing the ground beneath an estimated 40 percent of the huts.

The impact is already visible. Philippe Wager, head of huts and environment at SAC, pointed to one shelter that had to be closed after the shifting ground caused severe cracking. "You try to have it together stable with steel, but it didn't work anymore," he said, noting that the Alps are warming at roughly twice the global average rate.

Beyond structural damage, the huts are facing a growing water crisis. They depend on winter snowpack and summer glacial melt for their water supply, but warmer winters and retreating glaciers are reducing both. Hut operators are witnessing the change firsthand. "Every year, the glaciers in front of us keep melting and are becoming smaller and smaller," one operator said.

Scientists predict that most of Switzerland's glaciers could vanish by the end of this century, a prospect that would fundamentally alter the landscape and the experience these huts offer. Meanwhile, the thawing ground is also increasing the frequency of geological hazards like rockfalls and mudflows, posing additional risks to both the structures and the hikers who seek shelter in them.