(TibetanReview.net, Sep02’26) – The glacial collapse that tore through Nepal’s borderlands may have originated on the Nepali side of the Himalayas. But that does not give China a clean chit for the scars its infrastructure push is leaving across the same fragile mountain system, said an indiatoday.in report Sep 1. It noted that last year, the Stockholm Center, a Sweden-based think tank, warned that the Tibetan Plateau was undergoing a rapid but largely overlooked ecological transformation.
And the Aug 26 flash floods have brought that warning back into focus, the report warned.
The devastating Aug 26 floods have killed at least 1,114 people in Nepal while 3,916 are missing, a week after the disaster, Nepal’s disaster authority said this morning. On the Tibetan side, the figures of 16 killed and 546 people missing have remained unchanged since they were last updated on the third day. These take the total toll till this morning to 1,130 dead, and 4,462 missing.
India Today said its OSINT team had traced at least 90 Chinese infrastructure assets across the Himalayan belt in the Tibet Autonomous Region (TAR): 27 air assets, 17 railway assets, 33 mountain tunnels, and 13 dams, reservoirs, and hydropower projects, using publicly available information and official records. (OSINT is South Asia’s first dedicated open-source intelligence and visual investigations newsroom unit that uses public data, satellite imagery, and digital forensics to report on national security, geopolitics, and online disinformation.)
The team’s review has prioritised projects showing visible post-2020 activity — newly built, expanded, operational or under construction. Together, they trace an infrastructure arc from the Karakoram near Ladakh to the eastern Himalayas facing Arunachal Pradesh.
The team has said that for years, researchers had warned that blasting, tunnelling, excavation and slope-cutting can compound instability in mountains already being reshaped by rising temperatures, retreating glaciers and thawing permafrost.
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The team has noted that more than half of the air facilities mapped by it, including the Aksai Chin heliport at approximately 4,876 metres, and the Jiareke and Rutog lying above 4,500 metres, are aviation infrastructure carved into terrain defined by thin air, severe cold and unstable slopes.
Their functions vary, with Ngari Gunsa, Lhasa Gonggar and Nyingchi Mainling being dual-use airports, combining civilian connectivity with potential military logistics, surveillance and combat roles.
Their expansion accelerated after 2020: 14 of the 27 air assets were upgraded, expanded or became operational during this period. In Jul 2021, defence and OSINT analyst Damien Symon tracked runways emerging at Burang (Purang) and Tingri. Longzi later emerged with a 4,500-metre runway, entering service towards the end of 2022.
Burang faces the Lipulekh region near the India-Nepal-Tibet tri-junction; Tingri faces Nepal and the central Himalayas; Longzi sits near the Arunachal frontier.
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Regarding the water footprint, there are six reservoirs, five hydropower stations and two major water-conservancy hubs, which are spread across the Sutlej basin, Karnali-Ghaghara headwaters, southern Shigatse and the Yarlung Tsangpo, which enters Arunachal Pradesh as the Siang before becoming the Brahmaputra.
The report notes that while a project hundreds of kilometres away cannot, by itself, explain a glacial collapse, the concern is cumulative: dams, blasting, tunnelling and slope-cutting unfolding across terrain already losing stability.
Since Mao Zedong made the famous quip that “There is more water in the south and less water in the north. If possible, it is okay to borrow a little,” China has built more than 80,000 dams and over 98,000 reservoirs, according to a 2025 CSIS (Center for Strategic and International Studies) report.
And the most consequential of these projects now lies on the lower Yarlung Tsangpo near the Great Bend in Medog. Construction began in Jul 2025 on five cascade hydropower stations costing an estimated 1.2 trillion yuan. Here the river falls nearly 2,000 metres over just 50 kilometres, creating enormous hydropower potential, in one of the Himalayas’ deepest and most geologically unstable gorges, the report said.
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The report said railways and tunnels reveal the same pattern of infrastructure moving deeper into difficult terrain. The India Today team has mapped 17 rail assets: 11 corridors and six stations, freight yards or logistics nodes. Only the Lhasa-Shigatse and Lhasa-Nyingchi lines are operational backbones.
Construction on the Bomi–Nyingchi stretch of the Sichuan–Tibet Railway began in 2021, with Chinese state media reporting dozens of active construction sites along the route. Farther east, work has also begun on the 134-km Bomi–Ranwu railway. What makes this line significant is the terrain it has to cross: more than four-fifths of the route will run over bridges or through tunnels, with nearly 95 km of tunnelling planned, according to Chinese government and railway documents, the report noted.
The combined length of the 30 tunnels is roughly 370.5 km. Yigong alone stretches roughly 42.4 km; Layue, Zilashan, Guolashan and Haizishan run for around 30 km apiece.
And the wider 1,500-km long Sichuan-Tibet Railway has to cross more than 40 major fault lines, more than attempted by any previous rail project. Engineering studies of the Ya’an-Nyingchi section describe extreme ground stresses, unstable geology, geothermal heat and other hazards as defining challenges, the report noted.
The report said that a 2022 peer-reviewed study in Communications Earth & Environment, a Nature Portfolio journal, found that nearly 40 per cent of the Tibetan Plateau’s permafrost is already warm and unstable. As permafrost thaws, slopes weaken. Excavation, blasting, spoil dumping and reservoir loading can then add local stresses to terrain already in motion.
While Nepal’s disaster was not made in Medog, it is certainly a warning of what can happen when one of the world’s most aggressive infrastructure pushes meets one of the world’s fastest-changing mountain systems — with consequences that do not stop at China’s borders, but flow downstream towards India, the report warned.
But the report does not appear to have focussed on China’s massive, environmentally devastating mining activities across the Himalayan Tibet, which has yielded it world-class reserves and mineral types that include precious metals and rare-earth elements.