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DUSHANBE, Tajikistan: 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 say.
Footage of the May 28 collapse showed a huge cloud of ice and rubble hurtling down the mountainside, into the hamlet of Blatten.
Ali Neumann, disaster risk reduction adviser to the Swiss Development Cooperation, noted that while the role of climate change in the specific 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.
“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 an international UN-backed glacier conference in Tajikistan.
Stefan Uhlenbrook, Director for Hydrology, Water and Cryosphere at the World Meteorological Organization (WMO), said it showed the need for vulnerable regions like 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 United Nations said last year, with floods and storms the chief cause of casualties and economic losses.
But many Asian nations, particularly in the Himalayas, lack the resources to monitor their vast glaciers to the same degree as the Swiss.
According to a 2024 UN Office for Disaster Risk Reduction report, 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,” said geologist Sudan Bikash Maharjan of the Nepal-based International Center for Integrated Mountain Development (ICIMOD).
“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 Belgium-based Center 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 nearly two billion people, are melting faster than ever before due to climate change, exposing communities to unpredictable and costly disasters, scientists warn.
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.
Declan Magee, from the Asian Development Bank’s Climate Change and Sustainable Development Department, 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.
Nepali climate activist and filmmaker Tashi Lhazom described how the village of Til, near to her home, was devastated by a landslide earlier in May.
The 21 families escaped — but only just.
“In Switzerland they were evacuated days before, here we did not even get seconds,” said Lhazom.
“The disparity makes me sad but also angry. This has to change.”

SINGAPORE: Australian Defense Minister Richard Marles on Saturday urged greater transparency from China over its military modernization and deployments as Pacific nations brace for a more assertive Chinese presence.
Speaking to Reuters on the sidelines of the Shangri-La Dialogue defense meeting in Singapore, Marles said that while China remains an important strategic partner to Australia, more open communication between the two nations is key for a “productive” relationship.
“When you look at the growth in the Chinese military that has happened without a strategic reassurance, or a strategic transparency....we would like to have a greater transparency in what China is seeking to do in not only its build up, but in the exercises that it undertakes,” said Marles.
“We want to have the most productive relationship with China that we can have ... we hope that in the context of that productive relationship, we can see greater transparency and greater communication between our two countries in respect of our defense.”
Both Australia and New Zealand raised concerns in February after three Chinese warships conducted unprecedented live-fire drills in the Tasman Sea.
Both nations complained of late notice over the drills by China, which led to the diversion of 49 commercial flights.
Marles said that while the drills were in accordance with international law, China should have been less disruptive.
He also said Australia was able to closely scrutinize the Chinese task-force.
“It’s fair to say that this was done in a bigger way than they have done before, but equally, that was meant from our point of view, by a much greater degree of surveillance than we’ve ever done,” he said.
“From the moment that Chinese warships came within the vicinity of Australia, they were being tailed and tracked by Australian assets ... we were very clear about what exercises China was undertaking and what capability they were seeking to exercise and to build.”
Chinese officials have signalled that more such exercises could be expected as it was routine naval activity in international waters. Defense analysts say the exercises underscore Beijing’s ambition to develop a global navy that will be able to project power into the region more frequently.
Australia has in recent times pledged to boost its missile defense capability amid China’s nuclear weapons buildup and its blue-water naval expansion, as the country targets to increase its defense spending from roughly 2 percent of GDP currently to 2.4 percent by the early 2030s.
The nation is scheduled to pay the United States $2 billion by the end of 2025 to assist its submarine shipyards, in order to buy three Virginia-class nuclear-powered submarines starting in 2032 — its biggest ever defense project.