Melaine Le Roy
@subfossilguy.bsky.social
Assiduous dendroglaciologist, moraine lover, wandering geomorphologist, living in the Holocene, climate (and eco-) anxious, @edytem.bsky.social
https://www.researchgate.net/profile/Melaine-Le-Roy-2?ev=hdr_xprf
https://www.researchgate.net/profile/Melaine-Le-Roy-2?ev=hdr_xprf
'hydrologically absurd'... 😱
Grazalema, Spain, received over 2,000 mm (78 inches) of rain in just the last 20 days.
Over a year’s worth of rain — and it’s only early February. This is hydrologically absurd.
Over a year’s worth of rain — and it’s only early February. This is hydrologically absurd.
February 9, 2026 at 10:05 PM
'hydrologically absurd'... 😱
February 9, 2026 at 9:03 PM
Deniers:
"You know, cold balances out heat... nature balances itself!" 🤡
Reality:
"The last colder-than-average month on planet earth was in February of 1985, which means that no one under the age of forty has ever known one" 👇
billmckibben.substack.com/p/notes-on-w...
"You know, cold balances out heat... nature balances itself!" 🤡
Reality:
"The last colder-than-average month on planet earth was in February of 1985, which means that no one under the age of forty has ever known one" 👇
billmckibben.substack.com/p/notes-on-w...
February 9, 2026 at 8:46 PM
Deniers:
"You know, cold balances out heat... nature balances itself!" 🤡
Reality:
"The last colder-than-average month on planet earth was in February of 1985, which means that no one under the age of forty has ever known one" 👇
billmckibben.substack.com/p/notes-on-w...
"You know, cold balances out heat... nature balances itself!" 🤡
Reality:
"The last colder-than-average month on planet earth was in February of 1985, which means that no one under the age of forty has ever known one" 👇
billmckibben.substack.com/p/notes-on-w...
Potential glacier contributions to the 2024 La Bérarde flood! 🧊❄️🌊
Hydraulic barriers at the glacier tongue could have impounded 160×10^3 m3 of water, with the largest water pocket located beneath the depression that temporarily hosted a supraglacial lake 💧
egusphere.copernicus.org/preprints/20...
Hydraulic barriers at the glacier tongue could have impounded 160×10^3 m3 of water, with the largest water pocket located beneath the depression that temporarily hosted a supraglacial lake 💧
egusphere.copernicus.org/preprints/20...
February 9, 2026 at 8:16 PM
Potential glacier contributions to the 2024 La Bérarde flood! 🧊❄️🌊
Hydraulic barriers at the glacier tongue could have impounded 160×10^3 m3 of water, with the largest water pocket located beneath the depression that temporarily hosted a supraglacial lake 💧
egusphere.copernicus.org/preprints/20...
Hydraulic barriers at the glacier tongue could have impounded 160×10^3 m3 of water, with the largest water pocket located beneath the depression that temporarily hosted a supraglacial lake 💧
egusphere.copernicus.org/preprints/20...
Jorge Montt Glacier
2021 | 2026
2.5 km in 5 years... 🧊🔥
The demise of Patagonian tidewater glaciers is somehow spectacular! 😲
📷 @mauri-pelto.bsky.social 🙏
For a longer-term perspective on this glacier, see:
cp.copernicus.org/articles/8/4...
2021 | 2026
2.5 km in 5 years... 🧊🔥
The demise of Patagonian tidewater glaciers is somehow spectacular! 😲
📷 @mauri-pelto.bsky.social 🙏
For a longer-term perspective on this glacier, see:
cp.copernicus.org/articles/8/4...
February 9, 2026 at 12:36 PM
Jorge Montt Glacier
2021 | 2026
2.5 km in 5 years... 🧊🔥
The demise of Patagonian tidewater glaciers is somehow spectacular! 😲
📷 @mauri-pelto.bsky.social 🙏
For a longer-term perspective on this glacier, see:
cp.copernicus.org/articles/8/4...
2021 | 2026
2.5 km in 5 years... 🧊🔥
The demise of Patagonian tidewater glaciers is somehow spectacular! 😲
📷 @mauri-pelto.bsky.social 🙏
For a longer-term perspective on this glacier, see:
cp.copernicus.org/articles/8/4...
The marks carved between 1899 and 1905 by Johan Bernhard Rekstad in front of Jostedalsbreen Ice Cap outlet glaciers (western Norway) to measure glacier variations were rediscovered recently! 🧊📏❎
journals.sagepub.com/doi/10.1177/...
journals.sagepub.com/doi/10.1177/...
February 9, 2026 at 12:09 PM
The marks carved between 1899 and 1905 by Johan Bernhard Rekstad in front of Jostedalsbreen Ice Cap outlet glaciers (western Norway) to measure glacier variations were rediscovered recently! 🧊📏❎
journals.sagepub.com/doi/10.1177/...
journals.sagepub.com/doi/10.1177/...
Do you think you're experiencing a real #winter? ❄️
Since 2019, all winters have been mild in France! 🌡️
2026 will be the 9th consecutive winter with a national temp. >= 6°C, whereas before 2018, there had never been more than 3 consecutive >= 6°C (1988, 1989, 1990) 🔥
🙏 @francoisjobard.bsky.social
Since 2019, all winters have been mild in France! 🌡️
2026 will be the 9th consecutive winter with a national temp. >= 6°C, whereas before 2018, there had never been more than 3 consecutive >= 6°C (1988, 1989, 1990) 🔥
🙏 @francoisjobard.bsky.social
February 9, 2026 at 10:26 AM
Do you think you're experiencing a real #winter? ❄️
Since 2019, all winters have been mild in France! 🌡️
2026 will be the 9th consecutive winter with a national temp. >= 6°C, whereas before 2018, there had never been more than 3 consecutive >= 6°C (1988, 1989, 1990) 🔥
🙏 @francoisjobard.bsky.social
Since 2019, all winters have been mild in France! 🌡️
2026 will be the 9th consecutive winter with a national temp. >= 6°C, whereas before 2018, there had never been more than 3 consecutive >= 6°C (1988, 1989, 1990) 🔥
🙏 @francoisjobard.bsky.social
Impressive rockfalls two days ago in the SW face of Cerro Chaltén! 🏔️😰
What. A. Place! 🤩
📷 Zachary Dreher
What. A. Place! 🤩
📷 Zachary Dreher
February 7, 2026 at 10:22 PM
Impressive rockfalls two days ago in the SW face of Cerro Chaltén! 🏔️😰
What. A. Place! 🤩
📷 Zachary Dreher
What. A. Place! 🤩
📷 Zachary Dreher
February 7, 2026 at 8:49 PM
530 cm measured today at 2230 m asl in #Candanchú (W Pyrenees), just below the #TucaBlanca (2322m)! ❄️
Excavation: 2 m
Snow probe: 3.30 m
These are values not seen since 2018 in the Pyrenees, and even since 2013 in W Pyrenees.
Real winter, nothing more.
📷@meteodelnorte
Excavation: 2 m
Snow probe: 3.30 m
These are values not seen since 2018 in the Pyrenees, and even since 2013 in W Pyrenees.
Real winter, nothing more.
📷@meteodelnorte
February 7, 2026 at 7:37 PM
530 cm measured today at 2230 m asl in #Candanchú (W Pyrenees), just below the #TucaBlanca (2322m)! ❄️
Excavation: 2 m
Snow probe: 3.30 m
These are values not seen since 2018 in the Pyrenees, and even since 2013 in W Pyrenees.
Real winter, nothing more.
📷@meteodelnorte
Excavation: 2 m
Snow probe: 3.30 m
These are values not seen since 2018 in the Pyrenees, and even since 2013 in W Pyrenees.
Real winter, nothing more.
📷@meteodelnorte
How much longer will we be able to enjoy being close to the ice? 🧊
These sensations are essential, yet have become so rare... 😢
On Argentière Glacier this morning with Les Droites and Les Courtes north faces!
📷 @lomdumtblanc.bsky.social 🙏
These sensations are essential, yet have become so rare... 😢
On Argentière Glacier this morning with Les Droites and Les Courtes north faces!
📷 @lomdumtblanc.bsky.social 🙏
February 7, 2026 at 12:52 PM
How much longer will we be able to enjoy being close to the ice? 🧊
These sensations are essential, yet have become so rare... 😢
On Argentière Glacier this morning with Les Droites and Les Courtes north faces!
📷 @lomdumtblanc.bsky.social 🙏
These sensations are essential, yet have become so rare... 😢
On Argentière Glacier this morning with Les Droites and Les Courtes north faces!
📷 @lomdumtblanc.bsky.social 🙏
Amazing dendro-provenancing work on Stradivari’s violins! 🎻🌲🗺️
It shows that during his “golden age” (1700-1725), he consistently selected spruce from high-altitude forests in Trentino (IT), and most likely from the Val di Fiemme in particular! 🤩
www.sciencedirect.com/science/arti...
It shows that during his “golden age” (1700-1725), he consistently selected spruce from high-altitude forests in Trentino (IT), and most likely from the Val di Fiemme in particular! 🤩
www.sciencedirect.com/science/arti...
February 7, 2026 at 12:12 PM
Amazing dendro-provenancing work on Stradivari’s violins! 🎻🌲🗺️
It shows that during his “golden age” (1700-1725), he consistently selected spruce from high-altitude forests in Trentino (IT), and most likely from the Val di Fiemme in particular! 🤩
www.sciencedirect.com/science/arti...
It shows that during his “golden age” (1700-1725), he consistently selected spruce from high-altitude forests in Trentino (IT), and most likely from the Val di Fiemme in particular! 🤩
www.sciencedirect.com/science/arti...
Fitz Roy (Cerro Chaltén) first ascent 74 years ago! 🏔️
On 2nd Feb. 1952, a French party finally reached this iconic peak at the end of an extremely difficult expedition (one of the members, Poincenot, drowned during the approach) marked by apocalyptic storms... 🥶
Different times!
📷 G. Strouvé
On 2nd Feb. 1952, a French party finally reached this iconic peak at the end of an extremely difficult expedition (one of the members, Poincenot, drowned during the approach) marked by apocalyptic storms... 🥶
Different times!
📷 G. Strouvé
February 7, 2026 at 11:27 AM
Fitz Roy (Cerro Chaltén) first ascent 74 years ago! 🏔️
On 2nd Feb. 1952, a French party finally reached this iconic peak at the end of an extremely difficult expedition (one of the members, Poincenot, drowned during the approach) marked by apocalyptic storms... 🥶
Different times!
📷 G. Strouvé
On 2nd Feb. 1952, a French party finally reached this iconic peak at the end of an extremely difficult expedition (one of the members, Poincenot, drowned during the approach) marked by apocalyptic storms... 🥶
Different times!
📷 G. Strouvé
Mandrone Glacier (Adamello, IT)
1956 | 2023
Fate of the largest italian glacier over last few decades! 🧊😢
The change you see during this period is ENTIRELY due to human emissions! 🔥🏭
Via Servizio Glaciologico Lombardo 🙏
1956 | 2023
Fate of the largest italian glacier over last few decades! 🧊😢
The change you see during this period is ENTIRELY due to human emissions! 🔥🏭
Via Servizio Glaciologico Lombardo 🙏
February 6, 2026 at 1:03 PM
Mandrone Glacier (Adamello, IT)
1956 | 2023
Fate of the largest italian glacier over last few decades! 🧊😢
The change you see during this period is ENTIRELY due to human emissions! 🔥🏭
Via Servizio Glaciologico Lombardo 🙏
1956 | 2023
Fate of the largest italian glacier over last few decades! 🧊😢
The change you see during this period is ENTIRELY due to human emissions! 🔥🏭
Via Servizio Glaciologico Lombardo 🙏
With increase in atmo humidity, heavy snowfall can still occur as part of anthropogenic warming! 🌡️❄️
That's exactly what we are seeing in the Pyrenees! 🔥
However, seasons are far much shorter than before!
Data for 1996-2024 at Canigou (2,160 m) 👇
Now, imagine 20th c. snowpacks! 🤍
📽️Via G. Jauseau
That's exactly what we are seeing in the Pyrenees! 🔥
However, seasons are far much shorter than before!
Data for 1996-2024 at Canigou (2,160 m) 👇
Now, imagine 20th c. snowpacks! 🤍
📽️Via G. Jauseau
February 6, 2026 at 11:57 AM
With increase in atmo humidity, heavy snowfall can still occur as part of anthropogenic warming! 🌡️❄️
That's exactly what we are seeing in the Pyrenees! 🔥
However, seasons are far much shorter than before!
Data for 1996-2024 at Canigou (2,160 m) 👇
Now, imagine 20th c. snowpacks! 🤍
📽️Via G. Jauseau
That's exactly what we are seeing in the Pyrenees! 🔥
However, seasons are far much shorter than before!
Data for 1996-2024 at Canigou (2,160 m) 👇
Now, imagine 20th c. snowpacks! 🤍
📽️Via G. Jauseau
162 years later! ⏳
Here is the very promontory (foreground) on which Ruskin was standing for this view of Aiguilles de Chamonix! 🏔️🎨
Thanks @lomdumtblanc.bsky.social for finding the very spot! 🙏
Here is the very promontory (foreground) on which Ruskin was standing for this view of Aiguilles de Chamonix! 🏔️🎨
Thanks @lomdumtblanc.bsky.social for finding the very spot! 🙏
February 5, 2026 at 6:56 PM
162 years later! ⏳
Here is the very promontory (foreground) on which Ruskin was standing for this view of Aiguilles de Chamonix! 🏔️🎨
Thanks @lomdumtblanc.bsky.social for finding the very spot! 🙏
Here is the very promontory (foreground) on which Ruskin was standing for this view of Aiguilles de Chamonix! 🏔️🎨
Thanks @lomdumtblanc.bsky.social for finding the very spot! 🙏
Katunsky Glacier
1870 | 2020
This magnificent late afternoon was the first time that an Altai glacier had been captured on camera (by female photographer L. Poltoratskaya)! 📷🧊🙏
Retreat of Katunsky Gl. from LIA amounts to 2.5 km! 🔥📈
Background is Belukha east summit (4,506 m) 🏔️
2020: A. Serzhenko
1870 | 2020
This magnificent late afternoon was the first time that an Altai glacier had been captured on camera (by female photographer L. Poltoratskaya)! 📷🧊🙏
Retreat of Katunsky Gl. from LIA amounts to 2.5 km! 🔥📈
Background is Belukha east summit (4,506 m) 🏔️
2020: A. Serzhenko
February 4, 2026 at 9:09 PM
Katunsky Glacier
1870 | 2020
This magnificent late afternoon was the first time that an Altai glacier had been captured on camera (by female photographer L. Poltoratskaya)! 📷🧊🙏
Retreat of Katunsky Gl. from LIA amounts to 2.5 km! 🔥📈
Background is Belukha east summit (4,506 m) 🏔️
2020: A. Serzhenko
1870 | 2020
This magnificent late afternoon was the first time that an Altai glacier had been captured on camera (by female photographer L. Poltoratskaya)! 📷🧊🙏
Retreat of Katunsky Gl. from LIA amounts to 2.5 km! 🔥📈
Background is Belukha east summit (4,506 m) 🏔️
2020: A. Serzhenko
'Some of the Aiguilles of Chamonix' (labeled)
John Ruskin
1854
Despite this painting was considered as showing the Grandes Jorasses (like here: christies.com/en/lot/lot-5...), it rather represents the Grands Charmoz from the vicinity of Signal Forbes! 🏔️
What do you think? 🧐
John Ruskin
1854
Despite this painting was considered as showing the Grandes Jorasses (like here: christies.com/en/lot/lot-5...), it rather represents the Grands Charmoz from the vicinity of Signal Forbes! 🏔️
What do you think? 🧐
February 2, 2026 at 7:10 PM
'Some of the Aiguilles of Chamonix' (labeled)
John Ruskin
1854
Despite this painting was considered as showing the Grandes Jorasses (like here: christies.com/en/lot/lot-5...), it rather represents the Grands Charmoz from the vicinity of Signal Forbes! 🏔️
What do you think? 🧐
John Ruskin
1854
Despite this painting was considered as showing the Grandes Jorasses (like here: christies.com/en/lot/lot-5...), it rather represents the Grands Charmoz from the vicinity of Signal Forbes! 🏔️
What do you think? 🧐
Rescue workers in action high up on the Bossons glacier to find skiers descending late the Couloir des Cosmiques at the Aiguille du Midi tonight! ⛷️😰
📷 @lomdumtblanc.bsky.social
📷 @lomdumtblanc.bsky.social
February 1, 2026 at 8:07 PM
Rescue workers in action high up on the Bossons glacier to find skiers descending late the Couloir des Cosmiques at the Aiguille du Midi tonight! ⛷️😰
📷 @lomdumtblanc.bsky.social
📷 @lomdumtblanc.bsky.social
Working on this beautiful glacier subfossil Pinus cembra sample from Valais right now! 🧊🌲💍
January 30, 2026 at 5:02 PM
Working on this beautiful glacier subfossil Pinus cembra sample from Valais right now! 🧊🌲💍
Endless heatwave and fires in Patagonia! 🔥
Yesterday, El Calafate, 50°S (yes, the town near famous Perito Moreno Glacier) broke its all time record! 🌡️👇
Almost 30°C at the fronts of the Patagonian ice giants... insane! 🧊😱
Via Juan Rivera
Yesterday, El Calafate, 50°S (yes, the town near famous Perito Moreno Glacier) broke its all time record! 🌡️👇
Almost 30°C at the fronts of the Patagonian ice giants... insane! 🧊😱
Via Juan Rivera
January 30, 2026 at 11:22 AM
Endless heatwave and fires in Patagonia! 🔥
Yesterday, El Calafate, 50°S (yes, the town near famous Perito Moreno Glacier) broke its all time record! 🌡️👇
Almost 30°C at the fronts of the Patagonian ice giants... insane! 🧊😱
Via Juan Rivera
Yesterday, El Calafate, 50°S (yes, the town near famous Perito Moreno Glacier) broke its all time record! 🌡️👇
Almost 30°C at the fronts of the Patagonian ice giants... insane! 🧊😱
Via Juan Rivera
Insane conditions endured by X. Cailhol on top of Aiguille du Midi yesterday while checking temp. sensors! 😲❄️
Beautifully minimalist.
📷 Xavier Cailhol
Beautifully minimalist.
📷 Xavier Cailhol
January 29, 2026 at 7:45 PM
Insane conditions endured by X. Cailhol on top of Aiguille du Midi yesterday while checking temp. sensors! 😲❄️
Beautifully minimalist.
📷 Xavier Cailhol
Beautifully minimalist.
📷 Xavier Cailhol
Cerros de la Plaza Glacier
2013 | 2025
One more for the history books! 😢
Extinction of this glacier de la Sierra Nevada del Cocuy is imminent! 🔥🧊✝️
📷 Via Daniel Zoque
See also this timelapse:
www.planet.com/stories/cerr...
2013 | 2025
One more for the history books! 😢
Extinction of this glacier de la Sierra Nevada del Cocuy is imminent! 🔥🧊✝️
📷 Via Daniel Zoque
See also this timelapse:
www.planet.com/stories/cerr...
January 29, 2026 at 1:46 PM
Cerros de la Plaza Glacier
2013 | 2025
One more for the history books! 😢
Extinction of this glacier de la Sierra Nevada del Cocuy is imminent! 🔥🧊✝️
📷 Via Daniel Zoque
See also this timelapse:
www.planet.com/stories/cerr...
2013 | 2025
One more for the history books! 😢
Extinction of this glacier de la Sierra Nevada del Cocuy is imminent! 🔥🧊✝️
📷 Via Daniel Zoque
See also this timelapse:
www.planet.com/stories/cerr...
8200 yr-old glacier larch tree in poster! 🤩🌲💍
DM if you're interested.
DM if you're interested.
January 28, 2026 at 8:26 PM
8200 yr-old glacier larch tree in poster! 🤩🌲💍
DM if you're interested.
DM if you're interested.
Pelvoux from Sélé Glacier
1915 | 2025
One century of ice melt in Ecrins massif! 🔥
Looking NE towards Pic Sans Nom (3913 m) and Mont Pelvoux (3943 m) 🏔️
Coup de Sabre Glacier is now gone and Coolidge Couloir is totally dry in summer... 🧊💧📈
📷 Henri Ferrand and @PnEcrins
1915 | 2025
One century of ice melt in Ecrins massif! 🔥
Looking NE towards Pic Sans Nom (3913 m) and Mont Pelvoux (3943 m) 🏔️
Coup de Sabre Glacier is now gone and Coolidge Couloir is totally dry in summer... 🧊💧📈
📷 Henri Ferrand and @PnEcrins
January 27, 2026 at 4:43 PM
Pelvoux from Sélé Glacier
1915 | 2025
One century of ice melt in Ecrins massif! 🔥
Looking NE towards Pic Sans Nom (3913 m) and Mont Pelvoux (3943 m) 🏔️
Coup de Sabre Glacier is now gone and Coolidge Couloir is totally dry in summer... 🧊💧📈
📷 Henri Ferrand and @PnEcrins
1915 | 2025
One century of ice melt in Ecrins massif! 🔥
Looking NE towards Pic Sans Nom (3913 m) and Mont Pelvoux (3943 m) 🏔️
Coup de Sabre Glacier is now gone and Coolidge Couloir is totally dry in summer... 🧊💧📈
📷 Henri Ferrand and @PnEcrins