400 Glacial Lakes Are About to Burst in the Himalayas — And Nobody Has a Plan
The Buried Record
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400 Glacial Lakes Are About to Burst in the Himalayas — And Nobody Has a Plan
1 347 просмотров · 3 нед. назад
The Buried Record
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1 347 просмотров · 3 нед. назад
Four hundred and ten glacial lakes across the Hindu Kush Himalaya have been classified as potentially dangerous. Not a single one has a functioning early warning system that meets the UN minimum standard. Nepal just lost over a thousand people to one lake. This video breaks down the science of glacial lake outburst floods, the three known solutions, and why none of them have been deployed at scale.
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TIMESTAMPS:
0:00 - Four hundred and ten
0:48 - How a glacial lake kills
4:30 - The physics of a GLOF
8:00 - Where the 410 lakes are
12:15 - The ones that already burst
16:30 - The Blatten solution
19:45 - Three ways to stop a GLOF
22:00 - Why nobody has built the system
25:00 - Four hundred and nine more
TOPICS COVERED:
GLOF mechanism: moraine dams, ice dams, landslide dams
Debris flow physics (3-5x denser than water)
410 dangerous lake inventory by country
Tsho Rolpa and Imja Tsho (Nepal)
Zhangzangbo 1981, Lugge Tsho 1994, Kedarnath 2013
GLOF frequency increase: 500% since 1950
Paraglacial transition period
Blatten, Switzerland: 1982 warning system, zero deaths
Three solutions: drainage, early warning, relocation
Cascading dam failure risk
Nepal hydropower dependency (97% electricity)
Funding gap: $11M budget vs $490M needed
China's 208 unmonitored lakes
Aid pledge vs disbursement history
Sources referenced: ICIMOD, Nature Communications, USGS, ESA Copernicus, NASA Landsat, United Nations
#GlacialLake #GLOF #Nepal #Himalayas #ClimateChange #GlacierCollapse #NaturalDisaster #EarlyWarning #BhoteKoshi #TheBuriedRecord