During the return journey of an Antarctic expedition in the Bellingshausen Sea geoscientist Johann Klages threw a message in a bottle into the water. He has now received an email from Tasmania: Toby Ray found the bottle on the west coast of Tasmania - it has travelled around two-thirds of Antarctica

Türchen 19: Drei Wochen, dreimal in „Region 3" gemessen – ein Meilenstein! Zum zweiten Mal überfliegt #Polar 6 (von Station Nord auf Grönland) die #Polarstern. Messungen aus der Luft lassen sich mit unseren Daten verknüpfen. Wir sind auf dem Weg nach Osten. Jetzt heißt es Endspurt. #CONTRASTSXMAS

Attacking NCAR is enormously self-destructive for America. NCAR is the leading centre in weather and climate research in the world. We Europeans often travel to NCAR to collaborate, discuss and learn. Hurting the centre will cause damage that is irreversible for years to decades with global impact.

Beyond fucked up…

Oh no... Seeing the direct tweet is even more frightening. Every day is a new crisis, and the repercussions are unimaginable.

We’ve got a piece in The Conversation about the 2025 Arctic Report Card and the implications of 20 years of tracking rapid Arctic change. #Arctic #akwx #Climate theconversation.com/from-record-...

The 2025 #Arctic Report Card is out! #AGU25 🧪🌊🦑🐻‍❄️ Check out the executive summary by the editors M.L. Drunkenmiller, R.L. Thoman, and T.A. Moon. @alaskawx.bsky.social arctic.noaa.gov/report-card/...

The 2025 Arctic Report Card is out. This is the 20th annual edition, having been issued every year since 2006. Highlights of this year’s report in the latest from the Alaska and Arctic Climate Newsletter. #Arctic #Climate #akwx @climatologist49.bsky.social alaskaclimate.substack.com/p/arctic-rep...

2025 Arctic Report Card #AGU25 arctic.noaa.gov/report-card/ #Arctic #Climate

This photo was taken during our #fieldwork in #Qaanaaq this year, which saw the earliest break up in our record of sea ice. The melting of the Greenland ice sheet has a global impact, but there are big local impacts too. Full details of this year's melt season in @carbonbrief.org now

An important new paper for all involved with #Arctic sea ice research - highlighting indigenous #seaice knowledge and needs for co-production

Our icebreaker Polarstern sets off today from Namibia toward Antarctica. The research expedition to the Antarctic Weddell Sea will conduct long-term studies of Antarctic biodiversity. www.awi.de/en/about-us/... Photo: Tim Kalvelage

Das geht gerade alles in die richtige Richtung beim AfD #Verbotsverfahren, die Länder machen sich auf den Weg. Und das ist gut so. #AfDVerbot www.butenunbinnen.de/nachrichten/...

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New paper about Russian subversive activities on Svalbard after 2014 is published by the European Centre of Excellence for Countering Hybrid Threats (Hybrid CoE). Written by the two UiT professors @kariagam.bsky.social & @stianbones.bsky.social and Barents Observer editor @thomasnilsen.bsky.social

#Bremen: Neue Innensenatorin #Högl unterstützt AfD-Verbotsverfahren www.weser-kurier.de/bremen/polit... "Ich bin dafür, alles zu unternehmen, um einen solchen Antrag beim Bundesverfassungsgericht einzureichen."

"climate science"

New PhD Opportunity in Ocean dynamics and climate impacts from high-resolution models and observations! A fully funded 4-year PhD position is now open at the Delft University of Technology in collaboration with the Alfred Wegener Institute. careers.tudelft.nl/job/Delft-Ph...

"EPA erases references to human-caused climate change from websites" "The agency modified sections of its website by deleting information about human-created greenhouse gases and the role they play in warming the planet. It also removed links to scientific data and information."

And now a look at December temperatures in the #Antarctic when averaged by decade... Data from @copernicusecmwf.bsky.social ERA5 reanalysis.

Our friends and @oceaniceeu.bsky.social collaborators in #Ukraine are featured in this documentary (that looks wonderful, alas this is only the trailer) about their work in #Antarctica. (Enable auto-translate on sub titles to appreciate in full). youtu.be/eG5xYx11hh8?...

Una webcam in diretta dal Mare di Ross! A questo link le immagini dalla rompighiaccio italiana Laura Bassi, impegnata nella spedizione del Programma Nazionale di Ricerche in Antartide laurabassi.ogs.it/lb_snapshot....

Türchen 3: Da ist es – unser erstes #Meereis! Am 6. Juli um 9:00 Uhr Bordzeit haben wir unsere erste Eisscholle aus dem Weg geschoben. Nun kann unsere eigentliche Arbeit beginnen. Unsere ersten Messungen zeigen: das Meereis ist zwischen 0,90 und 1,20 m dick. Auf geht’s zu Station 1! #CONTRASTSXMAS

Huge fractures opening at the Thwaites Glacier Eastern Ice Shelf grounding line

The study, led by Dr Ariaan Purich (SAEF/Monash) with collaborators from across Australia’s climate and Antarctic science communities, finds that if greenhouse gas emissions continue to rise, this positive state is expected to persist through the 21st century.

🌊 www.geomar.de/en/karriere/...

🚨 Monday ice update - #Arctic sea ice extent is currently the lowest on record (JAXA data) • about 1,110,000 km² below the 2010s mean • about 1,600,000 km² below the 2000s mean • about 2,310,000 km² below the 1990s mean • about 2,810,000 km² below the 1980s mean More: zacklabe.com/arctic-sea-i...

Imagine the image below fits into 1-2 pixels of this animation. #AntarcticaDay

The Antarctic Treaty, signed on this day in 1959, protects the entire continent for peace & science (like @awi.de‘s Polarstern here), banns military activity, and preserves the fragile environment. It is our global promise to keep Antarctica a peaceful and cooperative place. Happy #AntarcticaDay 1/2

From January 1st 2026, the CNRS will cut access to one of the largest commercial bibliometric databases, Clarivate Analytics' Web of Science, along with the Core Collection and Journal Citation Reports.

www.zeit.de/2016/51/meer... Mal wieder passend, nur 2016 gegen 2025 tauschen. @cerlin.bsky.social

Die Demonstrierenden von #Gießen haben den Rechtsstaat und die Demokratie verteidigt. Sie haben sich dabei massiver Polizeigewalt und öffentlicher Diffamierung aussetzen müssen. Respekt vor so viel Mut und Zivilcourage!

Wir kennen das alles: die Ignoranz gegenüber der #Polizeigewalt, die Gleichsetzung von rechts und links, die öffentlichen Diffamierungen von Menschen, die sich den Nazis entgegenstellen. Esther Bejarano hat recht: "Wer gegen Nazis kämpft, kann sich auf den Staat nicht verlassen."

Second, this generates a huge & increasing drain. A drain of money, but also of time, control, and trust. It's like a bubble -- and if it bursts, the trust in the publication system will be gone. Everybody watering down their wine on their side, till no-one trusts no wine vendor, ever, anywhere.

and remember: the reputation isn't gone until it's *common knowledge* that it is gone. As long as people think there might be others thinking X is a good enough journal, or think they have plausible deniability of not knowing better, submissions will flock in. Grey-zone authors just need cover.

Since AI slop is again all over Scientific Reports, a thread on the economics of grey-zone publishing. Why does slop keep getting published? What does it mean for science? How can we stop this? Background readings: Understand the strain: tinyurl.com/2b6wxx5r Stop the drain: tinyurl.com/3jfscscy

October 2025 was the warmest October on record for the #Arctic. Arctic sea-ice extent is currently the lowest on record for late November. My newest 'climate viz of the month' summarizes some of this latest data: zacklabe.com/climate-viz-... #ClimateChange #SciComm #OpenScience #OpenData #DataViz

🚀 LIFTOFF! ESA's HydroGNSS along with #IrideSpazio and #iceye satellites for Greece are on their way to orbit on a SpaceX Falcon 9.

We expect our #CM25 Press Conference livestream to now begin at 12:30 GMT13:30 CET. Thank you for bearing with us during this slight delay!

Arctic sea-ice extent just passed the border into the "record-low" domain. Same for Barents, Baffin, Hudson, and Svalbard regions. Second-lowest globally. 🌊❄️🥼🧪📉

The Arctic has just set a new record low for this time of year. As of 26 November 2025, sea ice extent is the lowest on record for the date based on OSI SAF sea ice climate data (1978–2024). Image from @osi-saf.eumetsat.int cryo.met.no/en/sea-ice-i... #Arctic #Climate

Ministers and high-level representatives from across Europe and from Canada kicked-off @esa.int’s Council at Ministerial level in Bremen yesterday to define the Agency’s budget and programmatic priorities for the coming 3 years–decisions that will shape Europe’s role in space for the decade ahead.

🚀 It's launch day for @esaearth.esa.int's HydroGNSS satellite along with #IrideSpazio and #Iceye satellites. Tune in today, 26 November, from 18:01 GMT/19:01 CET, to watch the liftoff live on #ESAwebTV. 📺 watch.esa.int @ukspaceagency.bsky.social

Sentinel-1D delivers first images: from #Antarctica to #Bremen www.esa.int/Applications...

13th International Workshop on Sea Ice Modelling, Assimilation, Observations, Predictions, and Verification 9 – 11 June 2026, Copenhagen, Denmark Hosted by the Danish Meteorological Institute iicwgda2026copenhagen.wordpress.com

🇨🇦 🇦🇹 🇱🇻 🇵🇱 🇩🇰 🇨🇭 🇫🇮 🇬🇷 🇪🇪 🇫🇷 🇳🇱 🇸🇪 🇧🇪 🇩🇪 🇷🇴 🇪🇸 🇮🇹 🇵🇹 🇬🇧 🇨🇿 🇳🇴 🇭🇺 🇸🇮 Welcome to #Bremen! #CM25 Livestream starts at 13:30 watch.esa.int/two/ 🤞

What's interesting as the Thanksgiving Holiday arrives? The first @bgc-argo.bsky.social profiling floats begin to emerge from under Antarctic sea ice each year. Float 5905383 is the first @soccomproject.bsky.social float for 2025/26. It has spent 7.9 years operating under ice. #argofloats #oneargo