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!).

🌟 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! ⬇️

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/

Are you a #geoscientist looking to transition to an #editorial career? Our #Earth team in Nature Communications is hiring, take a look here. www.nature.com/naturecareer...

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/...

Canicules, sécheresses et incendies. Après cet été brûlant, la climatologue Valérie Masson-Delmotte déplore que le gouvernement se cantonne à de la gestion de crise. « On n’a aucun cap au-delà de 2030 », résume-t-elle. Lire l'article ➡️ https://l.reporterre.net/xWS

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!

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 ⬇️

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.

🌎 Professor of Glaciology, @iceybethan.bsky.social has been selected as a lead author on @ipcc.bsky.social's Report 7 - regarded as the world's most authoritative source of information on climate change. ✍️Find out how Bethan will be involved in this major report >> bit.ly/4mUcoQ1

🔥 New paper out! 🔥 A highly detailed TCN-based glacier chronology in the Alps: providing age constraints for a series of late glacial and Holocene glacier and RA events ! Congrats @subfossilguy.bsky.social et al! Thrilled to have been part of this project! authors.elsevier.com/a/1lYtM-4PSD...

🔥 New paper out! 🔥 So thrilled (that's an understatement) to see this one out after so many yrs in the making! authors.elsevier.com/a/1lYtM-4PSD... Big shoutout to my coauthors, especially Irene and Philip! 🙏 We produced the most detailed TCN-based glacier chronology at a single site in the Alps!

New paper alert! Holocene glacier and climate changes in central Patagonia. Led by Carly Peltier. Also with @rlsoteres.bsky.social , and others... authors.elsevier.com/c/1lN53-4PSD...

Le vide argumentaire du grp macroniste #LoiDuplomb pourrait être risible s'il n’était que politicard. Mais il est terrifiant de cynisme&irresponsabilité car il compromet tout simplement santé publique, partage des communs... Il acte aussi +largement une certaine vision politique/rupture démocratique

Who could have predicted? 🙃 Marseille, France's 3rd largest city threatened by huge wildfires after the hottest June on record and a Mediterranean Sea +7°C >normal in early July! 🔥🔥🔥 People have to shut themselves away in their homes! 😱 Do you like the new normal? 🎥 © Jean-Baptiste Rivoallan

I’m delighted to share that our new paper is now out in @natclimate.nature.com! Our long-term, monthly Antarctic-wide dataset of surface meltwater shows that the East Antarctic Ice Sheet is becoming increasingly prone to surface meltwater ponding.

A little preview of the 3D topo of the Swiss alps with our LGM-to-future glacier simulation movie projected onto : and which will soon depart for the Universal exhibition in Osaka (Swiss pavillon)! Currently in the Geopolis of University of Lausanne for those who want to check it out !

Delighted to announce that we will present modelling results from our study on the last glaciation of the Alps at the Osaka Universal Exhibition this summer! LGM-to-future evolution of glaciers projected on 3D wood-carved topo of the Alps ! Details: www.unil.ch/news/fr/1750... #OsakaWorldExpo

Le tableau de bord des indicateurs clés de l'état du climat et de l'influence humaine a été réactualisé, il est à votre disposition ici : climatechangetracker.org/igcc

Final study of my PhD is out! www.science.org/doi/10.1126/... www.nytimes.com/2025/05/29/c... Our multi-model, multi-millennial glacier study shows: Every 0.1°C less warming preserves ~2% more mountain glacier mass; long-term impacts are much larger than 2100-only projections suggest.

Some thoughts on the #Blatten landslide, drawing heavily on the vital and excellent updates from @subfossilguy.bsky.social and @davepetley.bsky.social www.antarcticglaciers.org/2025/05/birc...

Scientists show that +1.5 °C is far too warm for Earth's ice sheets and will result in several metres of sea-level rise over the coming centuries, extensive loss and damage to coastal populations and will challenge the implementation of adaptation measures www.nature.com/articles/s43...

Model suggests impact of global warming on AMOC has led to increased flooding along US Northeast Coast phys.org/news/2025-05...

#Communiqué 🗞️ Le supercalculateur Jean Zay multiplie sa puissance de calcul par 4, ce qui en fait l’un des supercalculateurs les plus puissants et le plus utilisé en France et en Europe dans le domaine de l’intelligence artificielle. 💻 👉 www.cnrs.fr/fr/presse/su...

J’espère que ces films seront montrés à Nice a l'#UNOC en Juin. Tout acte manqué, toute négociation frileuse, toute manipulation pour faire croire que l'on protège alors que l'on tolère ce genre de pratique, est pris en conscience & connaissance, celles de la destruction du non-humain, a terme nous.

Nice views from the train of Cumulonimbus clouds over the alps : as I make my way to @egu.eu 2025 ! Looking forward to catching up with folks there this week :)

📣 Our new paper is out in Nature Communications! Subglacial water—often overlooked—can change sea-level rise projections by up to a factor of three. Big implications for how we model Antarctica. 🔗 www.nature.com/articles/s41...

Mapping changes in temperature: every decade from the 1850s to 2020s

Living near Zürich and interested in the paleo glacier history of your region? I've now added to our @igm-model.bsky.social youtube playlist new videos of our model simulation published in @naturecomms.bsky.social (doi.org/10.1038/s414...) but zooming in on the Reuss glacier during the LGM:

Important paper in Nature today about collapse of the West Antarctic Ice Sheet. There is a positive isotope anomaly at Skytrain Ice Rise during the last interglacial, consistent with what we found in our high-resolution water-isotope simulations when WAIS collapses. www.nature.com/articles/s41...

So nice to see such high resolution data from @legertancrede.bsky.social LGM modelling. Including the smaller local glaciers (red square) of the Venetian Prealps in Lessinia, Carega, Pasubio, Asiago Plateau and Monte Grappa 😍 Paper: www.nature.com/articles/s41... Videos: doi.org/10.5281/zeno...

We have a paper out today in @naturecomms.bsky.social on modelling the last glaciation of the European Alps, resulting in a substantial decrease in long-standing model-data misfits ! doi.org/10.1038/s414...

Plus que demain, date de clôture de l’enquête publique!

„The latest science published by the International Cryosphere Climate Initiative (ICCI) shows 1 metre of sea level rise is now inevitable within a century or so and could come as early as 2070 if ice sheets collapse and emissions are not curbed. „ www.theguardian.com/environment/...

"2023-24 was the 28th year in a row where the Greenland ice sheet has lost mass overall" This is a nice summary of how the #Greenland ice sheet fared during 2024