Sun, Jun 01, 2025 page5

• Swiss glacier collapse a global warming warning

  • AFP, DUSHANBE
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  The collapse of the Swiss Birch glacier serves as a chilling warning of the escalating dangers faced by communities worldwide living under the shadow of fragile ice, particularly in Asia, experts said.

  Footage of the collapse on Wednesday showed a huge cloud of ice and rubble hurtling down the mountainside into the hamlet of Blatten.

  Swiss Development Cooperation disaster risk reduction adviser Ali Neumann said that while the role of climate change in the case of Blatten “still needs to be investigated,” the wider impacts were clear on the cryosphere — the part of the world covered by frozen water.

  

  Water from the Lonza river flows over mud and stone to form a lake flooding the last houses of the village of Blatten, Switzerland, on Friday. A large part of the Blatten village was buried under masses of ice, mud and rock on Wednesday after the Birch Glacier collapsed.

  Photo: EPA-EFE

  “Climate change and its impact on the cryosphere will have growing repercussions on human societies that live near glaciers, near the cryosphere, and depend on glaciers somehow and live with them,” he said.

  The barrage largely destroyed Blatten, but the evacuation of its 300 residents last week averted mass casualties, although one person remains missing.

  “It also showed that with the right skills and observation and management of an emergency, you can significantly reduce the magnitude of this type of disaster,” Neumann said at a UN-backed glacier conference in Tajikistan.

  World Meteorological Organization director for hydrology, water and cryosphere Stefan Uhlenbrook said it showed the need for vulnerable regions such as the Himalayas and other parts of Asia to prepare.

  “From monitoring, to data sharing, to numerical simulation models, to hazard assessment and to communicating that, the whole chain needs to be strengthened,” Uhlenbrook said. “But in many Asian countries, this is weak, the data is not sufficiently connected.”

  Swiss geologists use various methods, including sensors and satellite images, to monitor their glaciers.

  Asia was the world’s most disaster-hit region from climate and weather hazards in 2023, the UN said last year, with floods and storms the chief cause of casualties and economic losses.

  However, many Asian nations, particularly in the Himalayas, lack the resources to monitor their vast glaciers to the same degree as the Swiss.

  A 2024 UN Office for Disaster Risk Reduction report said that two-thirds of countries in the Asia and Pacific region have early warning systems, but the least-developed countries, many of whom are in the frontlines of climate change, have the worst coverage.

  “Monitoring is not absent, but it is not enough,” International Centre for Integrated Mountain Development geologist Sudan Bikash Maharjan said. “Our terrains and climatic conditions are challenging, but also we lack that level of resources for intensive data generation.”

  That gap is reflected in the number of disaster-related fatalities for each event.

  While the average number of fatalities per disaster was 189 globally, in Asia and the Pacific it was much higher at 338, according to the Centre for Research on the Epidemiology of Disasters’ Emergency Events Database.

  Geoscientist Jakob Steiner, who works in climate adaptation in Nepal and Bhutan, said it is not as simple as just exporting the Swiss technological solutions.

  “These are complex disasters, working together with the communities is actually just as, if not much more, important,” he said.

  Himalayan glaciers, providing critical water to about two billion people, are melting faster than ever due to climate change, exposing communities to unpredictable and costly disasters, scientists warned.

  Hundreds of lakes formed from glacial meltwater have appeared in recent decades. They can be deadly when they burst and rush down the valley. The softening of permafrost increases the chances of landslides.

  The Asian Development Bank’s Climate Change and Sustainable Development Department economist Declan Magee said that monitoring and early warnings alone are not enough.

  “We have to think... about where we build, where people build infrastructure and homes, and how we can decrease their vulnerability if it is exposed,” he said.

  Nepalese climate activist and filmmaker Tashi Lhazom described how the village of Til, near to her home, was devastated by a landslide last month. The 21 families escaped — but only just.

  “In Switzerland they were evacuated days before, here we did not even get seconds,” Lhazom said. “The disparity makes me sad but also angry. This has to change.”
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