Dr. Tancrède Leger

@legertancrede.bsky.social

Postdoc RA at University of Lausanne, interested in glacier and ice-sheet dynamics, climatology, Quaternary glaciology, glacier/ice-sheet modelling 🏔🧊💻🧪🇫🇷 https://sites.google.com/view/tancrede-leger

Une première: des scientifiques de l'Université de Lausanne ont simulé le transport des roches à travers toutes les Alpes il y a 24’000 ans. Le but: visualiser la façon dont les glaciers ont forgé les paysages actuels!👇 www.youtube.com/watch?v=HE_i... @unil.bsky.social @legertancrede.bsky.social

Une simulation révèle le transport des roches à travers les Alpes il y a 24’000 ans

YouTube video by Université de Lausanne

youtube.com

New paper alert ! 🏔️🧪 «Topographic controls on asynchronous glacial maxima in the European Alps during the Late Pleistocene» doi.org/10.1130/G539... In this study lead by Dr. Elena Serra: we show that a major asynchrony in the local LGM of 2 major Alps glaciers does not have to be climate-related.

Topographic controls on asynchronous glacial maxima in the European Alps during the Late Pleistocene | Geology | GeoScienceWorld

Glacial records worldwide increasingly indicate that mountain glaciers and parts of continental ice sheets reached their maximum extents asynchronously

doi.org

The Central England temperature record represents the longest series of monthly temperature observations in existence. Recent temperatures there are over 1.5 degrees Celsius above the 1961-1990 average, and over 2 degrees above preindustrial values. Chart: UK Met Office.

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Drumlins, flow-sets recording shifting ice flow patterns over Scandinavia, and constraining migration of the ice sheet's main divide. Check out our new paper (Butcher et al 2026) in Boreas. Masses of data downlands available

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This seems to argue against the Hansen et al. argument for high climate sensitivity, as laid out in this paper: academic.oup.com/oocc/article...

Global warming in the pipeline

Abstract. Improved knowledge of glacial-to-interglacial global temperature change yields Charney (fast-feedback) equilibrium climate sensitivity 1.2 ± 0.3°

academic.oup.com

Jessica Tierney@leafwax.bsky.social · 6mo ago

Really excited to see this paper out!! Led by @vtcoop.bsky.social we show that if you use cold and warm paleoclimates together, you can reduce uncertainty in Earth's climate sensitivity by quantifying the pattern effect and more precisely constrain future climate change www.pnas.org/doi/10.1073/...

The new UNEP report is out with the latest estimates of 2100 warming outcomes under current policies, NDCs, and net-zero targets. Here is how it compares to both the IPCC scenarios and other estimates (CAT and IEA, who will release their own updates soon!).

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🌟 Postdoc Opportunity in Marine Biogeochemistry at CNRS-CEREGE! 🚢 Are you a passionate researcher ready to tackle climate change? Dive into the ERC-funded Deep-C project in Aix-en-Provence, France! ⬇️

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Arsine Glacier 18th Sept. 2025 Great overview of this wonderful site we spent so many time studying! 🥰 The landform bottom L is a moraine complex deposited after a large RA onto the glacier ~10.7 ka Check our freshly published TCN chronology of Arsine moraine sequence here! 👇 📷 @Meteofranz/IG 1/

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Polar #geoengineering dismissed as “unimaginably expensive” and “dangerous” Giant underwater curtains and artificial ice thickening diverts attention from cutting fossil fuel burning, climate scientists argue - but proponents disagree #climatecrisis Story by me www.theguardian.com/environment/...

Polar geoengineering dismissed as ‘unimaginably expensive’ and ‘dangerous’

Underwater curtains and artificial ice thickening divert attention from cutting fossil fuel use, says group of climate scientists

theguardian.com

I'm not sure many folks realize just how persistent the warming from CO2 is. Here is a set of 1000-year climate model runs (using FaIR) simulating one year of CO2 emissions (40 gigatons in 2020); a millennia later the world has not cooled back down!

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Les orages supercellulaires, très rares mais dévastateurs, pourraient augmenter en Europe avec le changement climatique. Une nouvelle étude révèle qu’une hausse de 3 °C suffit à accroître leur fréquence de 11 % en Europe avec un bond bien + marqué dans les Alpes Explications en GIF orages et chats ⬇️

Les Alpes, un futur foyer d'orages supercellulaires

Les orages supercellulaires, très rares mais dévastateurs, pourraient augmenter en Europe avec le changement climatique. Une nouvelle étude montre qu’un climat plus chaud de 3 °C suffirait à accroître...

radiofrance.fr

Unbelievable experience with the journal Palaeo3. Our manuscript was rejected because… they couldn’t find a second reviewer, and it had been in their system “too long” (7 weeks), according to the editor. In other words, just to preserve their review-speed metrics, they rejected our submission.