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Keep It Wool Glacier Covers

PR Campaign
Thursday 17th September, 2026

The Summit Foundation and University of Lausanne tested sheep’s-wool blankets on Switzerland’s Tsanfleuron Glacier, where they reduced summer melt about as effectively as conventional synthetic covers. The hook was a biodegradable alternative that also puts discarded Swiss wool to use; the small trial is still at an early stage.

Why it worked: It won coverage by pitting a tactile, biodegradable fix (wool blankets cutting melt 50–70%) against polluting plastic tarps during a record-melt season.

The lesson: Consider staging a head-to-head field test of a low-tech, circular-material swap and publish simple, jaw-drop metrics from a real site.

Summit Foundation University of Lausanne Fisolan
9 Sources:

Coverage over time

How this story spread across the media

Publication Headline Date
economictimes.com Switzerland glacier: Switzerland is putting sheep’s wool on a melting glacier to fight climate change — here’s why scientists think it could work as results start coming in - The Economic Times Thursday 3rd September, 2026
indiatimes.com Scientists covered 200 square metres of a Swiss glacier with sheep’s wool; early tests found it protected the ice about as well as plastic sheets, but only 0.02% of Swiss glacier ice is covered - The Times of India Monday 7th September, 2026
economictimes.com Blanket for ice cover? Scientists wraps Swiss glacier with sheep’s wool to protect it from melting; early tests found it protected the ice about as well as plastic sheets - The Economic Times Tuesday 8th September, 2026
the-ski-guru.com Could Sheep’s Wool Replace Plastic Glacier Covers? Swiss Trial Shows Early Promise Tuesday 8th September, 2026
indiatimes.com Swiss scientists covered part of an Alpine glacier with sheep's wool, but the natural material slowed melting almost as well as synthetic covers | - The Times of India Thursday 17th September, 2026
theweather.com Wool blankets to save glaciers: Switzerland is testing a curious technique to slow melting Tuesday 22nd September, 2026
theindependent.com Can sheep save the glaciers? Swiss scientists put wool to the test Friday 25th September, 2026
futura-sciences.com Four students wrapped part of an alpine glacier in sheep's wool in June — and cut summer melt in half by September - Futura-Sciences Saturday 10th October, 2026
earth.com Glaciers get wrapped in plastic each summer to slow the melt, but now Swiss researchers seem to have a much cleaner option Tuesday 13th October, 2026
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