New paper alert 🚨 🌊 The Southern Ocean and the Arctic are freshening. In our new paper we link, for the first time, such freshening to sea ice decline through salinity and stable oxygen isotopes observations and machine learning techniques. agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Finally, our unique dataset of combined water isotope and aerosol/INP observations from the ISLAS2021 field experiment at Andenes has been made public in the pangeaa database! Thanks to all who contributed, and stay tuned for the ISLAS2021 data paper! @erc.europa.eu doi.pangaea.de/10.1594/PANG...

Good news for the Gulf Stream! A study from @unibergen.bsky.social, the Bjerknes Centre and @ox.ac.uk indicates that the Arctic Ocean compensates for less deep water formation farther south. @mariusarthun.bsky.social @ailinbrakstad.bsky.social @jakobdoerr.bsky.social

Want to collect air with drones? Check out a "tools of the trade" article in @natrevearthenviron.nature.com by Kevin Rozmiarek www.nature.com/articles/s43... He & his fellow grad students were encouraged to write about their work by Nature editor Graham Simpkins, who visited INSTAAR this Spring 🙏🏽

Without our continued burning of fossil fuels, the current heat in London & most of the UK would not have been a heatwave: www.worldweatherattribution.org/climate-chan... Heatwaves are dangerous. Drink water, lots of it, stay cool, even if you feel invincible, you're probably not.

Wer zieht die Strippen hinter Trump und Vance, und was ist sein Plan? Sehr wichtiger und hervorragend gemachter Podcast vom Deutschlandfunk, den jeder kennen sollte: www.deutschlandfunk.de/die-peter-th...

Happy to share our paper in ‪@science.org‬ 'Observed trend in Earth energy imbalance may provide a constraint for low climate sensitivity models' | Science www.science.org/doi/10.1126/...

🚨📢 New Publication Alert Our new study shows that the #WestAntarctic #IceSheet repeatedly crossed #TippingPoint thresholds in the past, with important implications for its future stability. Press release: www.pik-potsdam.de/en/news/late... Study: www.nature.com/articles/s43... 🌊🧊⚒️🧪🥼

🧪 🎉 🎓 We are celebrating Dr. Inès Ollivier today - successfully defending her thesis "“Impact of Surface Processes on the Antarctic Water Isotope Climate Signal" Here with supervisor, Professor Hans Christian Steen-Larsen.

👏🏽 Congrats to ADAM ODORISIO & KEVIN ROZMIAREK! They're the winners of this year's INSTAAR Graduate Student Community Awards. See their commendations & our other INSTAAR award winners www.colorado.edu/instaar/2025...

🌊 Interested in a phd position in physical oceanography? Try beautiful Bergen! tinyurl.com/Phd-oceanogr...

Au revoir Paris! 🥐 Three inspiring workshop days at #LSCE and a great start for the #ISOSAM team to do a French-Norwegian comparison of our #stablewaterisotope modelling efforts in polar #snow ❄️🧊 #NFR #AURORA 🇳🇴 #CampusFrance 🇫🇷 @lsce-ipsl.bsky.social @unibergen.bsky.social

Sonja Wahl from @unibergen.bsky.social giving a crash course on the #d-excess in our lecture series on #stablewaterisotopes at #ITP in #Beijing. #CAS #ANSO-fellowship

My magnificent colleague Sonja Wahl kicking off the lecture series we will give on #stablewaterisotopes at the Institute for Tibetan Plateau Research #ITP. 🧪 Big thanks to our host Prof. Jing Gao during our ANSO visiting fellowship Chinese Academy of Science #CAS in #Beijing! 🙏

Assembling the #ISOSCAN sampling kit @bjerknes.uib.no

🧪 There is an available position as a postdoc at NORCE in paleo climate modelling in Bergen. ❄️ The focus is on investigating the Arctic region during past warm climates using NorESM, and is part of the ERC granted @i2b-erc.bsky.social Read more and apply here 👇 www.jobbnorge.no/en/available...

🧊 New ice core study of the last ice age by Chloe Brashear, Tyler Jones et al. suggests abrupt warming events were preceded by periods of unusually stable temperatures. Shifting sea ice is a potential driver of the phenomenon. Read our story: www.colorado.edu/instaar/2025...

Great news in tricky times for climate and environment! 🌱 Scandinavia's largest public transport operator #Nobina teams up with #STABL_Energy to reuse old e-bus batteries for energy storage 🔋♻️ shorturl.at/CiADb And my brother is one of the four epic #STABL co-founders! 🤩👏 stabl.com #proudsister

Let me share a picture of marvelous #Jostedalsbreen on today's #WorldDayForGlaciers. 💫 #Norway is rich in glaciers and ice caps, but their number is likely to reduce by 98% by the end of the 21st century. 👇🧵 Are Norway's #fossifuels truly a source of wealth or rather a threat to it? #ClimateAction

We have a new paper now online in the Annual Review of Earth and Planetary Sciences with a group of amazing ECR coauthors reviewing methods and applications of (offline) paleoclimate data assimilation and looking toward the future www.annualreviews.org/content/jour...

👏🏽 Congrats to grad student KEVIN ROZMIAREK & his int'l research team, for their first-of-its-kind data & analysis of atmospheric water-vapor isotopes above an ice sheet! Their work has implications for vapor transport, ice cores, & more. Read this thread from coauthor Laura Dietrich (U of Bergen)👇🏽

📚 New paper alert! 🧵 agupubs.onlinelibrary.wiley.com/doi/10.1029/... 🧪 We present a unique dataset of 465 (!) in situ measurements of the #water_isotopes in vapor up to 1500m above the #Greenland Ice Sheet. 🌍 We demonstrate the use of water isotope profiles to reveal gaps in climate model physics.

📣 New preprint out for discussion! 🤓
egusphere.copernicus.org/preprints/20...
We demonstrate that the eddy covariance method is reliable for measuring #turbulence over the #Greenland Ice Sheet in summer!
 Huge shout out to @idahaven.bsky.social for leading this paper!
 🧵(1/6)

Unprecedented attack on science www.nature.com/articles/d41...

#standupforscience ✊ Science needs reliable support and protection!

Are you attending #EGU25? Then why not try pitching your research to a panel of policymakers & #Science4Policy experts? This panel will then give you feedback on how to improve & engage with the policy community! To participate, you can submit your research topic here👇 www.egu.eu/forms/Pitchi...

Postdoc work can wait for a bit today—I'm out doing some after-work snow observations instead! ☀️❄️🏔️

🎉 Congratulations to @stefansobo.bsky.social for being selected among 1,200 nominees as one of the lead authors for the IPCCs special report on climate change in cities. “I am grateful for the opportunity to represent my community in this report", he says. 🧪 bjerknes.uib.no/en/article/n...

🧪 Dr. Margit H. Simon is awarded a prestigious ERC Consolidator Grant of 2,17 million € to lead the PIONEER project which will look at how climate and environmental changes have influenced humans. Congratulations, Margit! bjerknes.uib.no/en/article/n...

Curious about #Antarctica? Then this is the podcast for you: www.pineforestpods.com/south-pole-e.... Curious about ice shelves? Then episode 4 (with me) and 12 (with Dr Heiko Goelzer) is for you!

Faculty mentoring in academic institutions, a thread. As I advance in my academic career (read: as I keep getting more gray hair), I've come to appreciate, even more than before, the profound responsibility we (senior-ish faculty) have to support and nurture emerging talent, not diminish it.

Sund, sand and sea level change – new study from Deron Maitland and collagues at The University of the West Indies, the University of Bergen, NORCE, Nansen Environmental and Remote Sensing Center and the Bjerknes Centre.

Good bye wonderful Ærø 👋 And thanks to all participants for the inspiring, great discussions at the SNOWISO workshop!

🔎 Inès Ollivier spent a year in Antarctica where she tended instruments that gives us an understanding on how snow accumulates into the massive ice sheet. Read about the work of Laura Dietrich, Inès Ollivier and Daniel Gunning in the article. bjerknes.uib.no/en/article/n...

"Indigenous perspectives of climate change" How do the indigenous people living on Greenland perceive climate change and how does it affect their daily life and culture? 18th Of April, 18.00-19.30 Location: House of Litterature, Bergen Read more 👇 www.oneoceanweek.com/en/program-1...

Starting in 2025, March 21 becomes the #WorldDayForGlaciers 🧊. Living in Norway I know the white beauties' magic 🏔️❄️ - being German, I know how it is to lose all of them in the next decade. What are the costs of cultural and environmental heritage for our limitless emissions? #ClimateAction

We have a new doctor in the house! Many congratulations Dr. Jakob Dörr @jakobdoerr.bsky.social, who defended his thesis "Present and future drivers of Arctic sea ice variability" today! Read his latest publication here: www.researchgate.net/publication/...

I'm excited for #OSM24! If you are interested in sea-ice variability, come see my talk on Thursday at 9:36 AM about causal links between Barents-Kara sea ice and oceanic and atmospheric drivers. Preprint here: doi.org/10.22541/ess... @bjerknes.bsky.social Also happy to meet, hang out, or discuss 🙂

Who’s going to Ocean Sciences?👉 @jakobdoerr.bsky.social @xabidavila.bsky.social @inagler.bsky.social

Looking for a 3-year PostDoc to join our team at University of Bergen in the #ISLAS_project and #ISOSCAN to work at the interface between meteorology and hydrology. Use stable isotope models and data to study how Scandinavian mountains extract water from weather systems: tinyurl.com/imetb

Science academia keeps funding a ton of PhDs & post-docs (all temp labor) while its market of stable post-PhD jobs continues a long & steady collapse. Proposal reviewers still go “Oh this proposal’s really great because it funds a ton of students!” And no one reflects on that enormous imbalance.

Ever wondered what surface mass balance is? The #OceanICE and #PolarRES projects have a new series of videos where I #DescribeItIn2Ways #SMB #Greenland #Antarctica #IceSheets #EUPolarCluster #HorizonEurope polarres.eu/polarresnews...

Check out our new paper on the contribution of vapor fluxes to the surface mass balance of the Greenland Ice Sheet! 🧐🤓 tc.copernicus.org/articles/18/... We find that sublimation is a major driver of the summer SMB in the accumulation zone, removing about a third of the snowfall in June and July. 🌨️

Entschuldigt, liebe Kinder. Wir konnten die Klimakatastrophe leider beim besten Willen nicht verhindern. Wir mussten ja die Schuldengrenze einhalten. Das müsst ihr verstehen.

📣 Check out our new #AGU paper! 🧐https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL104249 We simulate how vapor exchange at the snow surface impacts the recorded climate signal in ice cores.