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polarobs.bsky.social
Polar Observer
@polarobs.bsky.social
700 followers 340 following 1.2K posts
Promouvoir la connaissance des régions #australes et #polaires | Promoting knowledge of #austral and #polar regions #Arctic #Antarctica #TAAF

Compte maintenu par @thalassarche46.bsky.social
Posts Replies Media Videos
Reposted by Polar Observer
arcticinstitute.bsky.social
📘 New Open Access Book on Arctic Security! ❄️🌍

TAI’s Andreas Østhagen & Andreas Raspotnik have co-edited a new open access volume: “The Nordic States, #NATO and the EU 🇪🇺 in #Arctic #Security” through @fridtjofnanseninst.bsky.social

🔗 Book page: www.e-elgar.com/shop/gbp/the...
The Nordic States, NATO and the EU in Arctic Security
This timely book explores the nuances of the Nordic states’ approach to security in the Arctic and their relationships with NATO and the EU. Challenging generalisations of the Arctic as peaceful and s...
www.e-elgar.com
November 27, 2025 at 2:09 PM
Reposted by Polar Observer
thebarentsobserver.com
The additional warming in the Eurasian Basin originates from the Greenland Basin, which, due to rapid warming, is no longer functioning as a cold source for the Eurasian Basin as it did in the past. #climatechange
The deepest parts of the Arctic Ocean are warming now too
While it is well documented that global warming is heating the world's oceans, there is now further evidence that even the deep waters are being affected.
www.thebarentsobserver.com
November 26, 2025 at 1:10 PM
polarobs.bsky.social
The USCGC #PolarStar (WAGB 10) departed Seattle on Thursday commencing its 29th deployment to #Antarctica in support of Operation Deep Freeze.

www.news.uscg.mil/Press-Releas...
USCGC Polar Star (WAGB 10) is seen moored ahead of deploying for Operation Deep Freeze 2026, Seattle, Nov. 20, 2025. Operation Deep Freeze is a joint service, inter-agency support operation for the National Science Foundation, which manages the United States Antarctic Program. (U.S. Coast Guard photo by Petty Officer 3rd Class Christopher Bokum)
November 27, 2025 at 8:39 AM
Reposted by Polar Observer
cnr-isp.bsky.social
The fifth and final drilling campaign of the Beyond EPICA – Oldest Ice project has just begun in Antarctica, at the remote field site of Little Dome C, 3,200 metres above sea level.
An international team of 15 will drill the bedrock beneath the Antarctic ice sheet and take duplicate ice samples.
the drilling team on the ice at Mario Zucchelli station
November 26, 2025 at 2:58 PM
Reposted by Polar Observer
awi.de
The Beyond EPICA project begins the fifth and final drilling campaign in Antarctica. AWI researchers are part of the international research team that will drill into the bedrock beneath the Antarctic ice sheet – at an altitude of 3,200 meters above sea level and temperatures around -35°C.
November 26, 2025 at 1:14 PM
Reposted by Polar Observer
earthdotcom.bsky.social
Scientists record 56,000 icebergs breaking off glaciers in real time #EarthDotCom #EarthSnap #Earth
Scientists record 56,000 icebergs breaking off glaciers in real time
In a new study, a 6-mile-long fiber optic cable laid on the seafloor beside a South Greenland glacier logged 56,000 iceberg breakups in near real time. The array captured the full chain of events from the first crack to waves that churn the fjord. A University of Washington led team placed the cable in the
www.earth.com
November 25, 2025 at 9:45 PM
polarobs.bsky.social
Studying penguin virology in #Antarctica:
@arizonastateuni.bsky.social researchers lead in discovery of new viruses in Antarctic penguins, expanding knowledge of polar ecosystems @viralnomad.bsky.social

news.asu.edu/b/20251124-s...
A group of Adélie penguins in #Antarctica. Photo courtesy Arvind Varsani/ASU.
November 25, 2025 at 9:48 PM
Reposted by Polar Observer
cimsec.bsky.social
"Increase Collaboration with South America to Protect U.S. Antarctic Interests"

With only one aging icebreaker left, the U.S. risks losing ground in Antarctica and must rely on South American partners to maintain access and treaty commitments.

cimsec.org/increase-col...
Increase Collaboration with South America to Protect U.S. Antarctic Interests | Center for International Maritime Security
By William Muntean and Wilder Alejandro Sánchez The United States has significant national interests in Antarctica, but it currently lacks the maritime capacity to secure them. The United States sent ...
cimsec.org
November 25, 2025 at 12:41 PM
polarobs.bsky.social
PODCAST Jean-Louis Etienne, médecin, explorateur, écrivain, auteur de "Persévérance, un voilier pour l'avenir de la planète" publié aux éditions Michel Lafon. Il est au micro de Sonia Devillers sur @franceinter.fr #PolarPod

www.radiofrance.fr/franceinter/...
Jean-Louis Etienne : "Quand c'est dur, l'envie est le moteur qui permet de résister à l'abandon "
Jean-Louis Etienne, médecin, explorateur, écrivain, auteur de “Persévérance, un voilier pour l’avenir de la planète” publié aux éditions Michel Lafon. Il est au micro de Sonia Devillers.
www.radiofrance.fr
November 25, 2025 at 8:54 PM
Reposted by Polar Observer
cinemathequefr.bsky.social
La vie des manchots empereurs en Antarctique, entre la pêche, le froid et les prédateurs. Des images merveilleuses bercées par la musique d'Émilie Simon. Oscar du meilleur documentaire.

🐧 "La Marche de l'empereur" de Luc Jacquet.
Ce mercredi à 15h.
www.cinematheque.fr/seance/43995...
November 24, 2025 at 7:01 PM
polarobs.bsky.social
PODCAST Les îles #Kerguelen #TAAF : une exploration scientifique et dessinée - Entretien avec le dessinateur #EmmanuelLepage à l'occasion de la parution de "Danser avec le vent" @futuropolis.bsky.social

www.rts.ch/audio-podcas...
Les îles Kerguelen: une exploration scientifique et dessinée | RTS
L'auteur de bande dessinée Emmanuel Lepage nous transporte sur les îles Kerguelen, ces îles situées à l’extrême sud du globe. Il a suivi des expéditions scientifiques, observant la faune emblématique ...
www.rts.ch
November 25, 2025 at 7:17 PM
Reposted by Polar Observer
cnr-isp.bsky.social
A multidisciplinary team of researchers is on board the research vessel Kronprins Haakon to take part in the EXTREME25 expedition, led by the Arctic University of Norway (UiT). The objective is to explore extreme deep-sea environments.
biofilm sampling of carbonates in the wet lab direct gas and liquid sampling from a Niskin bottle sub sampling sediment cores collection of hydrothermal liquid using a niskin bottle guided by a ROV
November 25, 2025 at 11:17 AM
polarobs.bsky.social
Australian authorities have confirmed the highly contagious H5 bird flu has reached Heard Island, about 4000km south-west of Perth and 1700km north of #Antarctica. High mortality rates in elephant seals have been observed in October, but no impacts on penguins and seabirds via @9news.bsky.social
Deadly bird flu strain reaches Australian territory for the first time
The deadly and highly contagious H5 bird flu has been confirmed in elephant seals on the Australian territ...
www.9news.com.au
November 25, 2025 at 8:14 AM
Reposted by Polar Observer
meretmarine.bsky.social
IPEV : Ouverture du recrutement pour l’hivernage 2026-2027 | Mer et Marine
➡️ https://go.meretmarine.com/sPV
November 24, 2025 at 10:31 AM
Reposted by Polar Observer
meretmarine.bsky.social
Nouvel épisode de grippe aviaire chez les éléphants de mer de Kerguelen | Mer et Marine
➡️ https://go.meretmarine.com/rm3
November 24, 2025 at 11:16 AM
Reposted by Polar Observer
zacklabe.com
Monday ice update - #Arctic sea ice extent is currently the *2nd* lowest on record (JAXA data)

• about 770,000 km² below the 2010s mean
• about 1,390,000 km² below the 2000s mean
• about 2,010,000 km² below the 1990s mean
• about 2,530,000 km² below the 1980s mean

More zacklabe.com/arctic-sea-i...
Line graph time series of 2025's daily Arctic sea ice extent compared to decadal averages from the 1980s to the 2010s. The decadal averages are shown with different colored lines with purple for the 1980s, blue for the 1990s, green for the 2000s, and white for the 2010s. Thin white lines are also shown for each year from 2000 to 2024. 2025 is shown with a thick gold line. There is a long-term decreasing trend in ice extent for every day of the year shown on this graph between October and January by looking at the decadal average line positions.
November 25, 2025 at 12:00 AM
Reposted by Polar Observer
eos.org
Found in Antarctica, old ice is helping scientists “ground-truth” their models to predict our climate future. 🧊 #OldestIce #ClimateScience eos.org/articles/new...
New Lessons from Old Ice: How We Understand Past (and Future) Heating - Eos
Fragments of blue ice up to 6 million years old—the oldest ever found—offer key insights into Earth’s warming cycles. Researchers are using these ancient data to refine models of our future climate.
eos.org
November 24, 2025 at 1:07 PM
polarobs.bsky.social
As the #Antarctic ice sheets thin under a warming climate, newly exposed mountain peaks may increase the supply of nutrients to the surrounding Southern Ocean - strengthening its natural ability to absorb carbon dioxide from the atmosphere via @oceanographicmag.bsky.social
Exposed Antarctic peaks could boost ocean’s carbon absorption - Oceanographic
Thinning ice in Antarctica may reveal nutrient-rich mountains, enhancing Southern Ocean’s role as a natural carbon sink over long timescales.
oceanographicmagazine.com
November 24, 2025 at 6:45 PM
polarobs.bsky.social
The town of Greybull, Wyoming, sent a disproportionately large number of workers to #Antarctica in the '80s and '90s to keep the #McMurdo Station research outpost running. Called the 'Greybull Mafia,' years on the ice at minus 80 forged friendships and even marriages.
The 'Greybull Mafia' Who Kept Antarctica Research Station Running
The town of Greybull sent a disproportionately large number of workers to Antarctica in the '80s and '90s to keep the McMurdo Station research outpost…
cowboystatedaily.com
November 23, 2025 at 8:26 PM
Reposted by Polar Observer
ptrckflmm.bsky.social
“One of the strategy's objectives is for Greenland to establish a peace center, preferably in cooperation with external contributors.

The vision is to become an international hub for conflict & peace research, as well as the promotion of peace & sustainable development, particularly in the Arctic.”
November 23, 2025 at 8:04 PM
polarobs.bsky.social
Working closely with Indigenous people is vital to @mariannefalardeau.bsky.social 's research on shifting #Arctic ecosystems via @sciencenews.bsky.social

www.sciencenews.org/article/mari...
Combining western science with Indigenous knowledge could help the Arctic
Polar marine ecologist Marianne Falardeau investigates how Arctic ecosystems are shifting under climate change.
www.sciencenews.org
November 22, 2025 at 7:13 PM
Reposted by Polar Observer
zacklabe.com
Was there any coverage of the recent record warmth in both the Arctic and Antarctic? Multiple global datasets now confirm these records, and I think it's really quite striking.

Here's some very quick plots showing NOAAGlobalTempv6 data from October too. And see my earlier posts.
A line graph shows the time series of Arctic mean surface temperature anomalies for each October from 1850 through 2025. There is a long-term increasing trend and large year-to-year variability. The mean surface temperature anomaly in October 2025 was 3.78°C for this region. Anomalies are computed relative to a 1910-2000 climate baseline. All data is from NOAA/NESDIS/NCEI NOAAGlobalTemp v6.0.0 on this graphic. A line graph shows the time series of Antarctic mean surface temperature anomalies for each October from 1850 through 2025. There is a long-term increasing trend and large year-to-year variability. The mean surface temperature anomaly in October 2025 was 1.43°C for this region. Anomalies are computed relative to a 1910-2000 climate baseline. All data is from NOAA/NESDIS/NCEI NOAAGlobalTemp v6.0.0 on this graphic.
November 22, 2025 at 2:20 AM
Reposted by Polar Observer
earthdotcom.bsky.social
Penguins and fishing boats clash over dwindling pockets of fish #EarthDotCom #EarthSnap #Earth
Penguins and fishing boats clash over dwindling pockets of fish
African penguins increasingly overlap with fishing boats as anchovy numbers drop, raising competition in the small prey pockets.
www.earth.com
November 22, 2025 at 3:32 PM
polarobs.bsky.social
Weekend Video: BBC debate on #Greeland 's political future via @arctictoday.bsky.social

www.arctictoday.com/weekend-vide...
Weekend Video: BBC debate on Greeland's political future - ArcticToday
For our Weekend Video, we bring you a deep dive into the future of Greenland. A BBC World Questions debate recorded in Nuuk brings together Minister Naaja Nathanielsen, Danish MP Louise Elholm, Greenl...
www.arctictoday.com
November 22, 2025 at 10:17 AM
Reposted by Polar Observer
pmarques35.bsky.social
[1/8] Kieran Mulvaney décrit Arctic Bay au #Nunavut, plongée 3 mois dans l’obscurité. L’article éclaire la notion "Habiter" en géographie en montrant comment les sociétés arctiques vivent la nuit polaire. Habiter un milieu suppose ici s’adapter à un cycle lumineux extrême. #geography urlr.me/bc3mgG
En décembre, le village d'Arctic Bay, au Nunavut, s’illumine dans l'obscurité hivernale. Située dans l'Extrême-Arctique canadien, cette communauté inuite isolée connaît chaque année trois mois d'obscurité hivernale. PHOTOGRAPHIE DE Acacia Johnson
November 16, 2025 at 7:36 AM