Melaine Le Roy
@subfossilguy
Assiduous dendroglaciologist, moraine lover, wandering geomorphologist, living in the Holocene, climate (and eco-) anxious, @edytem_fr
Still at #merdeglace for Day 6 of #7daysoffieldwork to celebrate 10 years of sampling and ~400 subfossil wood samples retrieved from this single moraine ! 🌲💍 #treerings #fieldwork #chamonix
Chamonix 'icescape' is nothing like it was a century ago... or even 30 years ago! 😰 ALL this melt and landscape alteration is due to anthropogenic action! 🔥📈 This is not an Opinion. This is Science. agupubs.onlinelibrary.wiley.com/doi/10.1029/20… 📷 Pierre Jeanneret / IG
The tongue of the largest glacier in the Alps from Belalp tonight (6:20 pm)! 😍 Anytime soon the front will not be visible anymore from this famous belvedere... 😰 🙏 @ABettmeralp for today's pic and comparison!
INSANE...! World record hottest day above 72°N ! 32,1°C max 21.5°C min 😨🥵😱
🌡️EXCEPTIONAL HEAT IN THE ARTICS 35C/95F at 68N latitude in Siberia 32.8C/91F at 71,5N at Tyumyati Insane day at Habarova lat 72N MINIMUM 21.5C/71F MAX 32.1C/90F It's arguably the WORLD RECORD HOTTEST DAY ABOVE 72 LATITUDE
In contrast to many other European countries, the wearing of Nazi symbols has not yet been banned in Switzerland! 😲 One of the reasons right-wing extremists repeatedly held meetings there in recent years and you can cross them hiking in mountains! 🤬🤮 srf.ch/news/schweiz/i…
Melting point reached in Svalbard in winter...! 😰 nature.com/articles/s4146…
So far in 2025, wildfires have burned more than 450 km² of land across the UK, surpassing anything seen in recent years by a wide margin.
Mt Blanc from Chamonix this morning! 😍 Almost 4km vertical distance! 🏔️ This seemingly unchanging glacial landscape recently undergone huge changes due to recent summers record-breaking ice melts 🔥 Never thought I'd witness such a rapid collapse! 📷@lomdumtblanc.bsky.social
Aiguiile Verte and (former) Mer de Glace bed from La Flégère this morning! 😍 Here are the biggest glaciers of the rest of your life! 🙃 📷 @lomdumtblanc.bsky.social
Impressive rock avalanche on the Aiguille Noire de Peuterey (3773 m, Italian side of Mont Blanc) on 17th July! 😲🔥 Via MeteoValledAosta / IG
Great story about a major research conducted at @edytem_fr revealing how long man has been impacting the soil through livestock farming in the Alps! ⛰️🐑🌊 The onset of a 'pedological Anthropocene' ~3.8 ka ago!
Grazing livestock and farming over the past 4000 years have rapidly accelerated the rate of soil loss in the Alps, jeopardising the ecosystem and putting the mountains at risk of further erosion newscientist.com/article/248876…
Blatten, yesterday! 😰 2 MONTHS after the disaster, incredible pics of what the valley looks like from slightly W of the collapsed Birch Glacier! 🧊🌊 Lonza starts braiding on deposit, new roads have been blazed, and lake level has not dropped much 📷 F. Magnin @edytem_fr
Saas Valley from Lagginhorn (4010 m), yesterday! 😍 Weissmies and Trift Glacier (L), Mattmark dam (center), Monte Rosa (4634 m, background), Fee Glacier (R) and Saas Fee (bottom R) Enjoy, as no ice will be left in 50 yrs! 🔥 Thanks @maitepariente 🙏
Blatten, yesterday! 😱 2 months after the disaster, this is what the valley looks like from slightly west of the former Birch Glacier that collapsed... 😭 📷 Florence Magnin
Les Aiguilles de Chamonix are blazing tonight! 🔥😍 📷 @lomdumtblanc.bsky.social
On 12th July, a 5,000 m3 rockslide occurred near Grande Dixence dam in Valais! 🪨🌊 rts.ch/info/regions/v… The press release from the local authority from yesterday states continuing instability and that the area is still closed! 🚫 heremence.ch/data/documents…
Dating of the Tödi summit ice core (3570 m) reveals persistent glaciation since early Holocene and prolonged neg. MB during HTM (9-6 ka)! 🏔️🧊 This is 1st time such old ice is dated at such low elevation in the Alps! 👏 ui.adsabs.harvard.edu/abs/2024AGUFMC… 📷 @matthias_huss (09.07.2008)
