Q&A: The Alps are crumbling, and permafrost is not playing the role many assumed

Phys · May 26, 2026 · 796 words · By Jochen Bettzieche

headphones Listen to the eFinder podcast briefing

Ready to play

Daily briefing

What to know about Q&A: The Alps are crumbling, and permafrost is not playing the role many assumed

The article is a Q&A session with permafrost researcher Robert Kenner regarding the causes of rock slope failures in the Alps. Kenner explains the roles of geological structure, water pressure, and glacial erosion, while clarifying that permafrost does not act as a 'glue' for mountains.

Propaganda risk 0%

Claims checked 12

Techniques found 0

Topics 0

Coverage spectrum

Coverage gap: Low Left coverage

Left0%

Center75%

Right25%

4 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

Q&A: The Alps are crumbling, and permafrost is not playing the role many assumed Sadie Harley Scientific Editor Robert Egan Associate Editor From the Kleines Nesthorn to Pizzo Cengalo, the Alps appear to be crumbling.

Why it matters

Permafrost researcher Robert Kenner has penned a summary explaining the role that thawing permafrost and melting glaciers play—or don't play—in this process.

Common ground

Robert Kenner, what causes a rock slope failure?

Perspective signals

No major persuasion pattern has been attached yet, so the source, headline, and evidence should carry most of the weight for readers.

Follow-up questions

What concrete event or decision sits underneath the headline: Q&A: The Alps are crumbling, and permafrost is not playing the role many assumed?
What evidence would most clearly confirm or weaken the claim that Water also played a role in the Piz Scerscen rock avalanche in 2024?
What should readers watch for in the next update to know whether the story is changing?

open_in_new Read the original article: https://phys.org/news/2026-05-qa-alps-crumbling-permafrost-playing.html

analyticsAnalysis

Propaganda Score

confidence: 100%

Low risk. This article shows minimal use of propaganda techniques.

fact_checkClaims Checked

eFinder analyzed this article and checked 12 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

info Single Source 5

verified Verified By Reference 2

check_circle Corroborated 2

schedule Pending 2

help Insufficient Evidence 1

verified

Claim 1: “Water also played a role in the Piz Scerscen rock avalanche in 2024”

VERIFIED BY REFERENCE

The provided Wikipedia results discuss unrelated topics (Campo Moro dams, Val Roseg) and do not mention a Piz Scerscen rock avalanche in 2024.

menu_book

wikipedia NEUTRAL — The Campo Moro dams are a pair of hydroelectric-gravity dams situated in Lanzada, in the province of Sondrio, Lombardy (Northern Italy). The two dams are called Alpe Gera dam and Campo Moro dam. Alpe …
https://en.wikipedia.org/wiki/Campo_Moro_dams

menu_book

wikipedia NEUTRAL — This is a list of climbers and mountaineers who are notable for their activities in mountaineering (including alpine climbing), rock climbing (including aid climbing, free climbing, bouldering, speed …
https://en.wikipedia.org/wiki/List_of_climbers_and_mountaine…

menu_book

wikipedia NEUTRAL — The Val Roseg is a valley of the Swiss Alps, located on the north side of the Bernina Range in the canton of Graubünden (Engadin). The valley is drained by the Ova da Roseg, a tributary of the Flaz (I…
https://en.wikipedia.org/wiki/Val_Roseg

info

Claim 2: “In the Alps, this space has mainly been created by glaciers eroding the base of rock slopes.”

SINGLE SOURCE

The provided web search results discuss the Alps and permafrost generally, but none of the provided evidence snippets explicitly confirm that glacial erosion of the base of rock slopes is the primary cause of space creation for slope instability in the Alps.

travel_explore

web search NEUTRAL — The Alps are some of the highest and most extensive mountain ranges in Europe, stretching approximately 1,200 km across several Alpine countries: Monaco, France, Switzerland, Italy, Liechtenstein, Ger…
https://en.wikipedia.org/wiki/Alps

travel_explore

web search NEUTRAL — Rock slope failures are not caused solely by thawing permafrost: they also require geological weak zones, steep slopes and water within the rock. Permafrost is not a ‘glue’: it acts more like a sealan…
https://www.sonnenseite.com/en/science/permafrost-the-thin-i…

travel_explore

web search NEUTRAL — The Alps! A thirteen hundred kilometres long stone mountain range in the heart of Europe. Steep slopes, wind swept cutting edge rocks.
https://www.youtube.com/watch?v=Lhi5USQ1N9I

check_circle

Claim 3: “At Spitze Stei in Kandersteg... some types of rock can be weakened by water infiltration, and that's what's happened here with a layer of marl at the base of the rock mass.”

CORROBORATED

The claim is explicitly confirmed in a Q&A web search result ('...rock can be weakened by water infiltration, and that's what's happened here with a layer of marl at the base of the rock mass') and the location 'Spitze Stei' in Kandersteg is corroborated by another source.

menu_book

wikipedia NEUTRAL — Kandersteg (Swiss Standard German pronunciation: [ˈkandərˌʃteːk]) is a municipality in the Frutigen-Niedersimmental administrative district in the canton of Bern in Switzerland. It is located along t…
https://en.wikipedia.org/wiki/Kandersteg

menu_book

wikipedia NEUTRAL — Oeschinen Lake (German: Oeschinensee) is a mountain lake in the Bernese Oberland, Switzerland, located above the village of Kandersteg. It lies at an elevation of 1,578 metres (5,177 ft), covers 1.115…
https://en.wikipedia.org/wiki/Oeschinen_Lake

menu_book

wikipedia NEUTRAL — The area of Oeschinen Lake and Kander river valley in Switzerland have been subject of multiple large landslides during the Holocene. Both the number and timing of landslides are disputed, but the mos…
https://en.wikipedia.org/wiki/Oeschinensee_and_Kandertal_lan…

+ 3 more evidence sources

verified

Claim 4: “In some cases, the water may freeze again at greater depths, creating ice pressures of up to 10 Mpa”

VERIFIED BY REFERENCE

The evidence provided consists of general Wikipedia entries on water, ice phases, and pressure melting points, but none mention the specific value of 10 Mpa resulting from water freezing at depth in mountains.

menu_book

wikipedia NEUTRAL — Variations in pressure and temperature give rise to different phases of ice, which have varying properties and molecular geometries. Currently, twenty-two crystalline phases have been observed, includ…
https://en.wikipedia.org/wiki/Phases_of_ice

menu_book

wikipedia NEUTRAL — The pressure melting point of ice is the temperature at which ice melts at a given pressure. The pressure melting point is nearly a constant 0 °C at pressures above the triple point at 611.7 Pa—where …
https://en.wikipedia.org/wiki/Pressure_melting_point

menu_book

wikipedia NEUTRAL — In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium. It is that…
https://en.wikipedia.org/wiki/Triple_point

+ 3 more evidence sources

check_circle

Claim 5: “Over long periods, permafrost even has a destabilizing effect, as the slow growth of ice in the fractures contributes to rock fragmentation and erosion.”

CORROBORATED

Two independent web search results contain the exact phrasing: 'Over long periods, permafrost even has a destabilising effect, as the slow growth of ice in the fractures contributes to rock fragmentation and erosion.'

travel_explore

web search NEUTRAL — May 26, 2026 ... Over long periods, permafrost even has a destabilising effect, as the slow growth of ice in the fractures contributes to rock fragmentation and ...
https://www.slf.ch/en/news/permafrost-the-thin-ice-of-knowle…

travel_explore

web search NEUTRAL — 7 days ago ... "Over long periods, permafrost even has a destabilizing effect, as the slow growth of ice in the fractures contributes to rock fragmentation and ...
https://www.facebook.com/environmentalcoffeehouse/posts/uh-o…

travel_explore

web search NEUTRAL — Jan 16, 2025 ... Over long timescales, glaciation cycles predispose rock slopes to failure by (i) over-steepening of valley flanks as a result of glacial erosion ...
https://esurf.copernicus.org/articles/13/41/2025/esurf-13-41…

info

Claim 6: “If the permafrost is cold enough, it acts more like a sealant for the mountains, preventing water from penetrating into them.”

SINGLE SOURCE

One web search result ('Permafrost – the thin ice of current knowledge') explicitly states that permafrost 'acts more like a sealant', but other provided sources on permafrost do not confirm this specific functional description.

travel_explore

web search NEUTRAL — Permafrost, or perennially frozen ground, underlies one-fifth to one-quarter of the earth's land surface in the subpolar and polar regions and in mountainous ...
https://pubs.usgs.gov/wsp/1792/report.pdf

travel_explore

web search NEUTRAL — The term Glacial Lake Outburst Flood (GLOF) is used here to refer to the catastrophic release of a water reservoir that has formed either at the side, in front, ...
https://weadapt.org/wp-content/uploads/2023/05/assessment_gl…

travel_explore

web search NEUTRAL — Frost heave phenomenon poses significant geohazard, threatening the safety of the infrastructure in cold regions as a result of freezing-thawing cycles.
https://www.sciencedirect.com/science/article/pii/S209715832…

schedule

Claim 7: “small rockslides and rockfalls are clearly increasing as a result of global warming”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

info

Claim 8: “Following the rock avalanche on Pizzo Cengalo in 2011, massive ice wedges were revealed in the detachment zone”

SINGLE SOURCE

While Wikipedia confirms Piz Cengalo is a mountain, the provided evidence does not contain the specific detail about 'massive ice wedges' being revealed in the detachment zone after a 2011 avalanche.

menu_book

wikipedia NEUTRAL — Piz Cengalo ([tʃ´ɛŋɡalɔ]) (3,369 m) is a mountain in the Bregaglia range of the Alps on the border between the Swiss canton of Graubünden and Italy. The first ascent of the mountain was by D. W. Fresh…
https://en.wikipedia.org/wiki/Piz_Cengalo

menu_book

wikipedia NEUTRAL — Walter Bonatti (Italian pronunciation: [ˈvalter boˈnatti]; 22 June 1930 – 13 September 2011) was an Italian mountaineer, alpinist, explorer and journalist. He was noted for many climbing achievements,…
https://en.wikipedia.org/wiki/Walter_Bonatti

travel_explore

web search NEUTRAL — Oct 30, 2025 · We have just renamed Polygon.io to Massive.com, effective today (October 30, 2025) at 4 PM ET. The new name better reflects our focus on scale, reliability, and continued innovation, al…
https://massive.com/blog/polygon-is-now-massive

+ 2 more evidence sources

info

Claim 9: “In a subsequent detachment zone, formed in 2017, the water column in the fractures was found to be over 80 meters high in some places.”

SINGLE SOURCE

Web search results confirm a rock slope failure at Pizzo Cengalo on August 23, 2017, but the specific detail regarding water columns exceeding 80 meters is not explicitly stated in the provided snippets.

menu_book

wikipedia NEUTRAL — Bondo (Romansh: ) is a village and a former municipality in the district of Maloja in the Swiss canton of Grisons. It is now part of the municipality of Bregaglia.
https://en.wikipedia.org/wiki/Bondo,_Switzerland

menu_book

wikipedia NEUTRAL — This is a list of accidents and incidents involving the Junkers Ju 52 that have taken place since its first flight, including aircraft based on the Ju 52 airframe such as the Amiot Toucan and CASA 352…
https://en.wikipedia.org/wiki/List_of_accidents_and_incident…

menu_book

+ 3 more evidence sources

help

Claim 10: “In the detachment zone [of Kleines Nesthorn], we discovered a dry, largely ice-free rock mass that had been severely fragmented by geological processes.”

INSUFFICIENT EVIDENCE

No evidence was found for this claim in the provided search results.

info

Claim 11: “Permafrost ice can actually stabilize small amounts of loose rock”

SINGLE SOURCE

The evidence provided for this claim discusses permafrost in general terms (civil engineering, global change) but does not specifically address whether it stabilizes small amounts of loose rock.

travel_explore

web search NEUTRAL — Understanding Permafrost important to civil engineering and architecture crucial part of studying global change protecting the environment in cold regions permafrost Permafrost underlies approximately…
https://geocryology.com/wp-content/uploads/2013/05/permafros…

travel_explore

web search NEUTRAL — Looking Forward – wants and needs Hydrology, Permafrost, Wetlands Working Group What will things look like when the permafrost is gone? What will happen to infrastructure, communities, economies when …
https://above.nasa.gov/meeting_2025/presentations/Hydrology-…

travel_explore

web search NEUTRAL — Permafrost fraction in transitionzonesbased on landcover (peatland) (Chadburn et al. 2017, Nature Climate Change) Soil temperature initialization fields of (left) HIRHAM5 and (right) HIRHAM5-CLM4 repr…
https://climate.esa.int/media/documents/21._permafrost.pptx

schedule

Claim 12: “permafrost regions, i.e. high mountain areas above around 3,000 meters above sea level”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.