Himalayan snow at 23-year low, threatening 2 billion people: report https://phys.org/news/2025-04-himalayan-year-threatening-billion-people.html

Snow in Himalayas Reaches Lowest Level in 23 Years, Threatening Water Supply for Nearly 2 Billion People: Report https://www.ecowatch.com/snow-himalayas-water-climate-change.html

Die #Schneedecke im #Himalaya erreicht ein 23-Jahres-Tief. Das ist nun das dritte Jahr in Folge mit drastisch geringen Werten.

Rund zwei Milliarden Menschen sind auf das #Schmelzwasser angewiesen. Forschende warnen vor wachsender #Wasserknappheit und fordern bessere #Dürrevorsorge, regionales #Wassermanagement und Zusammenarbeit entlang der großen #Flusssysteme Südasiens.

https://www.n-tv.de/wissen/Himalaya-Schneedecke-auf-bedenklichem-Tiefstand-article25717283.html

Forscher schlagen Alarm: Die Schneedecke im Himalaya ist auf einem 23-Jahres-Tief! Fast 2 Milliarden Menschen sind von der Wasserversorgung bedroht. Klimawandel zeigt dramatische Folgen. Mehr dazu: https://www.n-tv.de/wissen/Himalaya-Schneedecke-auf-bedenklichem-Tiefstand-article25717283.html #Klimawandel #Himalaya #Wasserkrise #newz

Avalanche Debris Detection From Sentinel-2 Data Using Fuzzy Machine Learning And Colour Spaces For The Indian Himalaya
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https://doi.org/10.1080/2150704X.2025.2488532 <-- shared paper
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#GIS #spatial #mapping #snowavalanches #snow #avalanches #machinelearning #fuzzyclassification #SVM #AI #randomforest #model #modeling #forecasting #risk #hazard #massmovement #engineeringgeology #remotesensing #earthobservation #imagery #spatialanalysis #spatiotemporal #change #debris #detection #satellite #sentinel #Himalaya #Himalayas #performance

From #Himalaya to #Arctic - #GlaciersAtRisk: A Wake-Up Call on #WorldWaterDay

Story by Namrata Dadwal, March 21, 2025

"This year on World Water Day on March 22, the UN is highlighting '#GlacierPreservation'. Why? Because these frozen reservoirs that supply freshwater to nearly two billion people are disappearing at an alarming rate due to #ClimateChange.

"According to the #Copernicus Climate Change Service (#C3S), Earth's #glaciers have lost over 8,200 gigatonnes of ice since 1976, leading to #RisingSeaLevels and #WaterScarcity concerns. Nearly 6,000 gigatonnes were lost between 2000 and 2023, with the 2010s being the worst decade on record for glaciers almost the annual ice loss was more than double that of the 1980s, with an average of 370 gigatonnes of ice vanishing each year."

Read more:
https://www.msn.com/en-in/news/India/from-himalaya-to-arctic-glaciers-at-risk-a-wake-up-call-on-world-water-day/ar-AA1Bqrlg
#WaterSecurity #WaterIsLife #OceanWarming #OceansAreLife

The unique Pan-#Himalaya flora is crucial for understanding the #evolutionary history of mountainous #biodiversity. Liu et al. propose a phylogenetic regionalization of the Pan-Himalayan vascular flora. https://doi.org/10.1111/jse.13166
@WileyEcolEvol
#PlantSci #systematics #evolution #JSE #Botany

In #Kaschmir ist eine berühmte #Quelle erstmals ausgetrocknet – ein Warnsignal für die Region.

Extreme #Trockenheit und fehlende #Niederschläge bedrohen #Landwirtschaft, #Trinkwasserversorgung und #Tourismus.

Experten sehen den #Klimawandel als Ursache und warnen vor einer neuen Normalität mit häufigeren #Wetterextremen.

https://www.n-tv.de/panorama/Alte-Quelle-in-Kaschmir-trocknet-erstmals-aus-article25588055.html

Sekong lake by Wim van de Meerendonk, back home!

https://tmblr.co/Z7VXvxh6aaigqm00

Durch das #Schmelzen der #Gletscher entstehen weltweit neue Seen.

Eine Studie der Universität #Potsdam zeigt jedoch, dass sich vor allem kleinere #Gletscherseen entleeren und nicht zwangsläufig größere #Fluten drohen.

Besonders in den #Alpen, #Peru und #Norwegen wurden Seen künstlich stabilisiert, während in Regionen wie dem #Himalaya oder #Alaska das #Gefahrenpotenzial wächst.

https://doi.org/10.1038/s44221-025-00388-w

The Pan-#Himalaya region is home to several #biodiversity hotspots. Yang et al. review #plant #diversity surveys in the region and propose special focus be given to northern Myanmar and Yarlung Zangbo–Brahmaputra.
https://doi.org/10.1111/jse.13161
@wileyplantsci
#ecology #PlantSci #flora #botany

Découvrez le mystérieux coquelicot bleu de l’Himalaya ! Une fleur rare et envoûtante qui semble tout droit sortie d’un rêve.

En savoir plus : https://www.2tout2rien.fr/le-coquelicot-bleu-de-lhimalaya-pavot-bleu/

#Nature #FleursRares #Himalaya #PavotBleu #Insolite #BeautéNaturelle

Sports d'hiver. « Une neige insuffisante » : sur l'Himalaya, les championnats d'Inde sont reportés

https://www.ledauphine.com/skichrono/2025/02/18/les-championnats-nationaux-d-inde-reportes-en-raison-d-une-neige-insuffisante

Mountain climbers often succumb to altitude sickness — the body's reaction to a significant drop in atmospheric pressure, which means less oxygen is taken in with each breath. Yet, in high altitudes on the Tibetan Plateau, where oxygen levels in the air people breathe are notably lower than lower altitudes, human communities thrive. @ScienceAlert tells us how:

https://flip.it/g-IWfR

‘Catastrophic’ 2023 lake outburst in India driven by glacial melt and permafrost thaw

#ClimateChange played a key role in the “catastrophic” 2023 floods in the Himalayan state of Sikkim in #India, a new study says.
The breach of one of the “largest, fastest-growing and most hazardous” glacial lakes in Sikkim, the South #Lhonak lake, led to cascading floods that killed 55 people and washed away a 1,200 megawatt (MW) #hydropower dam.
The event was identified as a glacial lake outburst flood (#GLOF), which is a sudden release of water from a lake fed by glacial melt.
#Sikkim is a small Himalayan state in north-east India, bordering #China in the north, #Bhutan in the east, #Nepal in the west and the state of West #Bengal in the south.
Part of the eastern #Himalaya, Sikkim is host to more than 90 #glaciers and #Kanchenjunga, the world’s third-highest peak. Sikkim serves as the origin and upper river basin for the #Teesta river, one of the largest tributaries of the #Brahmaputra river system.

https://www.carbonbrief.org/catastrophic-2023-lake-outburst-in-india-driven-by-glacial-melt-and-permafrost-thaw/