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polarobs.bsky.social
Polar Observer
@polarobs.bsky.social
Promouvoir la connaissance des régions #australes et #polaires | Promoting knowledge of #austral and #polar regions #Arctic #Antarctica #TAAF

Compte maintenu par @thalassarche46.bsky.social
Reposted by Polar Observer
The European #Arctic is shifting from a peripheral region to a strategic priority for Europe 🌎 ❄️

The #HighNorth will be shaped less by cooperation alone and more by security, infrastructure, and #geopolitical competition ⚓ @csis.org

👉 Full report below ⬇️
www.csis.org/analysis/nor...
Northern Connections: The European Arctic by 2035
As the rules-based order unravels in the European Arctic, experts examine three critical dimensions shaping the region by 2035: Europe's strategic vision, Greenland's future, and the role of military ...
www.csis.org
February 12, 2026 at 5:30 PM
Davie Defense will build two #Arctic Security Cutters at Helsinki Shipyard and three in Texas, completing Coast Guard awards for 11 new medium polar icebreakers under the ICE Pact framework.

gcaptain.com/u-s-coast-gu...
U.S. Coast Guard Awards Arctic Security Cutter Contracts to Davie Defense, Closing Out 11-Ship Program
The U.S. Coast Guard awarded Davie Defense a contract for up to five Arctic Security Cutters, completing an 11-ship icebreaker program with first delivery in 2028.
gcaptain.com
February 11, 2026 at 11:57 PM
Reposted by Polar Observer
Des centaines de séismes ont été détectés à proximité du « glacier de l’apocalypse » en Antarctique
Des centaines de séismes ont été détectés à proximité du « glacier de l’apocalypse » en Antarctique
Longtemps insaisissables, des séismes glaciaires ont été détectés pour la première fois en Antarctique. Ils pourraient aider à comprendre le rôle du glacier de Thwaites dans la montée du niveau de la mer.
theconversation.com
February 11, 2026 at 4:20 PM
Reposted by Polar Observer
Australia’s toxic legacy in Antarctica - and the push to clean it up. www.abc.net.au/news/2026-02...
Australia's frozen ghost town leaves behind a toxic legacy
The ABC has been given rare access to an abandoned Australian base in Antarctica that continues to pose a threat to the environment.
www.abc.net.au
February 11, 2026 at 9:03 PM
Reposted by Polar Observer
Scientists often test climate models using the climatic conditions of the past. New research on North Atlantic circulation during the Last Glacial Maximum provides another benchmark to use.
The AMOC of the Ice Age Was Warmer Than Once Thought - Eos
An analysis of sediment cores indicates that North Atlantic waters were relatively warm and continued to circulate even under major climate stress during the Last Glacial Maximum.
eos.org
February 11, 2026 at 5:25 PM
Reposted by Polar Observer
[1/3] PHOTO - Ragnar Axelsson documente depuis plus de 40 ans les sociétés de l’Arctique. Son livre "Where the World is Melting" montre, de l’Islande à la Sibérie, des territoires polaires profondément transformés par un réchauffement climatique rapide.
#geography #photography #Arctic
'Where the World is Melting' Documents Communities Amid Indelible Changes in the Arctic
Ragnar Axelsson's book applies journalistic rigor to a personal project documenting the indelible impacts of a warming planet.
www.thisiscolossal.com
February 8, 2026 at 8:41 AM
Reposted by Polar Observer
[1/8] Kong Fan analyse la surinterprétation occidentale de la présence chinoise en Arctique. Les accusations de militarisation relèvent, selon lui, d’une lecture héritée de la guerre froide, sans preuves tangibles, dans un espace devenu stratégique. #HGGSP #geography #China #Arctic
“Sortir des mentalités de guerre froide” : la Chine veut montrer patte blanche dans l’Arctique
Accusée par Donald Trump de menées militaires dans l’Arctique, la Chine investit au contraire la région de manière parfaitement pacifique, entre recherche scien...
www.courrierinternational.com
February 10, 2026 at 5:44 AM
Reposted by Polar Observer
[1/8] Des chercheurs britanniques ont mis au point une IA capable de reconstituer les "arbres généalogiques" des icebergs. En reliant chaque fragment à son iceberg d’origine, cet outil renouvelle l’observation des régions polaires et comble un angle mort majeur des sciences du climat. #geography
Climat: grâce à l'IA, des scientifiques reconstituent les «arbres généalogiques» des icebergs
Des scientifiques britanniques ont mis au point un nouveau système d'intelligence artificielle capable de retracer l'origine des petits icebergs jusqu'à leurs icebergs parents. Ce nouvel outil peut ai...
www.rfi.fr
February 10, 2026 at 6:17 AM
Reposted by Polar Observer
[1/6] Des archéologues montrent que des communautés paléo-inuites atteignaient régulièrement des îles isolées du Groenland il y a 4500 ans, révélant une maîtrise maritime avancée et une occupation structurée des milieux polaires. #geography #history #settlement #Arctic
The Arctic's first inhabitants shaped thousands of years of ecological development
Archaeologists have uncovered evidence for repeated prehistoric occupation in the remote island cluster of Kitsissut, north of Greenland, indicating the first people in the High Arctic were skilled se...
phys.org
February 10, 2026 at 6:24 AM
Reposted by Polar Observer
Sur environ 14 millions de kilomètres carrés, un peu moins du double de la superficie des États-Unis, l’Antarctique est recouvert de calotte glaciaire
Antarctique: une carte révolutionnaire dévoile des milliers de reliefs cachés
l.geo.fr
February 10, 2026 at 7:32 AM
Reposted by Polar Observer
[1/8] La juriste Maria Mut Bosque (Universitat Internacional de Catalunya) analyse la "crise du Groenland" de 2025. Elle montre que la rivalité entre États masque l’enjeu central. Le territoire arctique est habité par un peuple inuit doté de droits politiques reconnus. #geography #indigenous #Arctic
La crisis de Groenlandia y el actor olvidado: el pueblo inuit frente a la rivalidad entre Estados
La crisis de Groenlandia revela los límites del análisis geopolítico: el derecho a la autodeterminación y al consentimiento del pueblo inuit debe guiar cualquier influencia externa.
theconversation.com
February 10, 2026 at 6:39 AM
Reposted by Polar Observer
🌊 An important new study led by ACEAS PhD researcher Annika Oetjens from @imas-utas.bsky.social at @utas.edu.au shows the Southern Ocean may be storing 40 to 60 per cent less carbon at certain depths than many climate models assume.

Learn more ▶️ antarctic.org.au/southern-oce...
Southern Ocean may store less carbon than climate models assume - ACEAS
New research led by ACEAS PhD researcher Annika Oetjens and colleagues at the University of Tasmania reveals that the Southern Ocean may be storing less carbon than climate models assume – with import...
antarctic.org.au
February 10, 2026 at 5:30 AM
Reposted by Polar Observer
"The stability of Greenland is of huge importance to the world, not for minerals, oil or to stroke the ego of a megalomanic, but for the stability of the planetary systems and the climate we all rely on."

Greenland ice-melt impacts on sea level & ocean currents pose a global existential threat.
Whilst US attacks on Greenland's sovereignty are creating dangerous geopolitical instability, the island's ice is rewriting the rules of global climate. New evidence shows it is no longer just a victim of warming, but an active participant in it.

drtomharris.substack.com/p/the-unstab...
#Greenland
The Unstable Giant: New Evidence of Greenland’s Fragile Future
Whilst US attacks on Greenland’s sovereignty create geopolitical instability, the island’s ice is rewriting the rules of global climate. No longer just a victim of warming, its an active participant.
drtomharris.substack.com
January 28, 2026 at 11:55 AM
Reposted by Polar Observer
Just out today: The report “A Nordic Perspective on AMOC Tipping” reviews the current state of science on the risk of Atlantic Meridional Overturning Circulation (#AMOC) shutdown. 🌊
Conclusion: it's "a serious risk which requires a dedicated risk management framework".
pub.norden.org/temanord2026...
A Nordic Perspective on AMOC Tipping
This report is the outcome of the Nordic Council of Minister’s sponsored workshop arranged in October 21-24, 2025 in Helsinki and Rovaniemi, Finland as part of Finland’s council presidency theme resil...
pub.norden.org
February 5, 2026 at 10:46 AM
VIDÉO 1er volet des chroniques polaires et australes #TAAF - #Crozet 1964 : l'incendie.

www.youtube.com/watch?v=A1yD...
Crozet 1964 : l’incendie – Témoignage d’un hivernant
YouTube video by Terres australes et antarctiques françaises TAAF
www.youtube.com
February 8, 2026 at 1:21 PM
Reposted by Polar Observer
Donald Trump shocked Europe when he threatened the continent with tariffs to support his right to own Greenland.

But while the U.S. President has aborted his threat to take the Arctic island by force — online, the war is just getting started.

🔗 www.politico.eu/article/dona...
February 5, 2026 at 6:29 PM
Reposted by Polar Observer
Canada plants a flag in Greenland
Canada plants a flag in Greenland
Foreign Affairs Minister Anand insists Nuuk is a long-term Arctic play — with Anchorage up next.
dlvr.it
February 6, 2026 at 9:05 PM
Une semaine après leur retour en France et après un périple assez fou de trois mois sur les glaces de l' #Antarctique, la glaciologue Heïdi Sevestre et l'explorateur Matthieu Tordeur racontent leur expédition hors du temps, "Under Antarctica".

www.tf1info.fr/environnemen...
"On a encore tous nos doigts !" : ils ont parcouru 4.000 km au cœur de l'Antarctique en 80 jours | TF1 Info
[VIDÉO] La glaciologue Heïdi Sevestre et l'explorateur Matthieu Tordeur viennent de boucler une traversée de l'Antarctique en 80 jours. Les deux aventuriers ont pu effectuer des relevés cruciaux pour ...
www.tf1info.fr
February 7, 2026 at 2:53 PM
La station polaire Tara est de retour à Cherbourg après un voyage test de 8 mois. Elle doit subir plusieurs modifications à Constructions Mécaniques de Normandie, avant de partir pour l'expédition Tara Polaris à l'été prochain @fondationtaraocean.bsky.social

www.tendanceouest.com/actualite-43...
Sciences. "C'est l'aventure d'une vie" : la station polaire Tara de retour à Cherbourg avant sa grande expédition
La station polaire Tara est de retour à Cherbourg après un voyage test de huit mois. Elle doit subir plusieurs modifications à Constructions Mécaniques de Normandie, avant de partir pour l'expédition ...
www.tendanceouest.com
February 7, 2026 at 2:50 PM
Reposted by Polar Observer
Des scientifiques britanniques ont annoncé jeudi avoir développé un nouvel outil fondé sur l'intelligence artificielle pour suivre la dérive des icebergs et potentiellement combler un "angle mort" dans la prévision du changement ⤵️
L'IA, nouveau compagnon des scientifiques dans la chasse aux icebergs
l.geo.fr
February 6, 2026 at 8:28 PM
Researchers at the @bas.ac.uk have developed a new AI tool that can, for the first time, automatically track the lifecycles of icebergs as they drift, melt and fragment across the world's oceans – reconstructing detailed "family trees" of these massive ice formations.

www.bas.ac.uk/media-post/s...
Scientists use AI to track icebergs from birth to break up for the first time   - British Antarctic Survey
Scientists use AI to track icebergs from birth to break up for the first time.
www.bas.ac.uk
February 7, 2026 at 2:44 PM
Reposted by Polar Observer
Rothera’s off to a flying start in 2026. The new Discovery Building is open and the community on station is keeping everything running smoothly!

If you fancy the full story, modernisation progress, heritage moments and collaboration then our latest Postcard update has you covered ❄️📬
January 30, 2026 at 5:05 PM
Hugh Broughton Architects completes a new facility for the British Antarctic Survey @bas.ac.uk at Rothera Research Station in #Antarctica #AIMP via @archpaper.com

www.archpaper.com/2026/02/hugh...
February 7, 2026 at 2:40 PM