Konstantina Agiadi

The Greenlandification of Antarctica | Nature Geoscience Climate and ice sheet processes in Antarctica increasingly reflect those observed earlier in Greenland. Applying process insights from Greenland can improve projections of future Antarctic ice and climate behaviour.

Incidentally, the very nice schematic of cryosphere changes over both ice sheets was drawn by @jmalumbresolarte.bsky.social Tak! 🙏

New paper out today in @nature Geosciences:
The Greenlandification of Antarctica

Readcube pdf: rdcu.be/eJiqJ

Ocean stratification in a warming climate - Nature Reviews Earth & Environment Ocean stratification — density-related layering of seawater — influences oceanographic and climatic processes. This Review outlines observed and projected changes in stratification, noting a 0.8% dec−1 increase in 0–2,000 m stratification from 1960–2024, and a further 1.4% dec−1 increase by 2100 under SSP2-4.5.

🌊 Ocean stratification has increased since the 1960s, rising 0.8%/decade due to warming, with projections of up to 2.9%/decade by 2100 depending on emissions

Impacts: reduced vertical mixing, altered heat and carbon uptake, intensified cyclones, and ⬆️ ecosystem stress
www.nature.com/articles/s43...

Thousands of quakes struck a major Greek volcano, mapping the plumbing beneath it A “crisis” that rocked the island of Santorini may reveal a shared magma system between two volcanoes with explosive histories

A “crisis” that rocked the island of Santorini may reveal a shared magma system between two volcanoes with explosive histories. https://scim.ag/428JVho

Instability in the geological regulation of Earth’s climate Negative feedback between climate and atmospheric carbon dioxide (CO2), mediated by the weathering of silicate minerals on land, is thought to provide the primary regulation of Earth’s climate on geol...

Instability in the geological regulation of Earth’s climate

www.science.org/doi/10.1126/...

Open fully-funded spots in the upcoming @saltages.bsky.social

Workshop “Salt-related geomorphology, geohazards and infrastructure”

December 11-13, Zaragoza
sites.google.com/view/saltage...

Pan-Arctic map of data coverage in the Fossil Arctic Marine Mammal database. Shown is a bivariate choropleth map denoting species richness and number of fossils in 200km x 200 km grid cells

🐋 🐻‍❄️ 🦭 MASSIVE NEW FOSSIL DATABASE 🐋 🐻‍❄️ 🦭

Our FAMM (Fossil Arctic Marine Mammal) database has now been published #OpenAccess in Global Ecology and Biogeography!

Come learn about the cool stuff you can do with #Arctic #fossil material and bio-molecular archives! ☢️ ⚛️ 🧬

Link and thread below!

🧵 1/🦴

📯Collection manager position in the Natural History Museum of Basel 🇨🇭

Collection: "invertebrate" fossils
Location: maps.app.goo.gl/Svd1o2M333av...
Workload: 70% of full-time
Description and application page: stellenmarkt.bs.ch/kbs/job/deta...

🌋 Η πρώτη εκτίμηση του Γεωδυναμικού Ινστιτούτου για το σεισμό που έγινε, πριν από λίγο, αισθητός στην Αττική…

#σεισμός

The Keeling Curve The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

424.70 parts per million (ppm) CO2 in air 05-Sep-2025
keelingcurve.ucsd.edu

Confused writing is usually a symptom of confused thinking. As we struggle to clarify writing, we clarify our thoughts. AI writing aids rob us of that struggle, leaving clean-looking text and thoughts still confused for lack of inspection. Writing is not just a product; it is a diagnostic tool.

Need to calibrate your δ18Osw-based proxies, but can't find the right data? We've got you, FAIR! Check out our new @pages-ipo.bsky.social seawater δ18O database preprint at ESSD! (With Alyssa Atwood, @thomasfelis.bsky.social, @kimcobb.bsky.social, and more!) 🌊🧪

essd.copernicus.org/preprints/es...

That moment when you spot a deep-sea cutie 😍

Deep-sea hatchetfishes cleverly camouflage themselves in the dark depths of the ocean with light-producing organs along their bellies. This allows them to match the daylight filtering from surface waters above and hide from predators lurking below.

Unexpected decline in the ocean carbon sink under record-high sea surface temperatures in 2023 - Nature Climate Change The ocean carbon sink strengthened in previous warm El Niño years due to reduced CO2 outgassing in the tropics. Here the authors show that the ocean carbon sink declined in 2023 despite record-high se...

🌊 In 2023, the ocean carbon sink weakened for the first time in a record-hot year 🌡️🌎
Our new study in Nature Climate Change quantifies this unexpected decline and explains how it came about. 👇
doi.org/10.1038/s415...

Two-billion-year transitional oxygenation of the Earth’s surface - Nature A 2.5-billion-year record of oxygen isotopes in sedimentary sulfate reveals the transitional oxygenation of the Earth’s surface and provides constraints on the dynamic, lengthy co-oxygenation of Earth...

Two-billion-year transitional oxygenation of the Earth’s surface
www.nature.com/articles/s41...

Marine heatwaves are shaping the vertical structure of phytoplankton in the global ocean - Communications Earth & Environment Marine heatwaves promote the development of a deep chlorophyll maximum, which reshapes subsurface chlorophyll and therefore vertical phytoplankton distributions, according to analyses of Biogeochemica...

🌊 Marine heatwaves are shaping the vertical structure of phytoplankton in the global ocean

Using 17 yrs of global BGC-Argo data, we show depth-specific chlorophyll-a responses (intensified, weakened, subsurface-reversed), driven by light, temp & nutrients

www.nature.com/articles/s43...

🌡️ Even the ocean’s twilight zone isn’t safe from climate change 🐟
Mesopelagic fishes moved 100m deeper during the 2015–2016 heatwave in the California Current—potentially impacting food webs and carbon transport.
🎥 Watch the latest 💎#HiddenGems https://youtu.be/yyvV1eoM7lU?si=KEskA83dTFAt28MJ

🌊📍 Spatial Congruence Data is an open-access resource by iMARES to assess overlapping stressors in the Mediterranean Sea. Supports climate resilience & conservation planning.

📥 Access & download:

🔗 imares.science/tools...

⚒️ Article: Seismic evidence for oceanic plate delamination offshore Southwest Iberia

@joaocduarte.bsky.social

www.nature.com/articles/s41...

At the top: a photograph of a fossil fish: Paralates chapelcornerensis (NHMUK PV P 76993a) lying on its side horizontally on a fine grained yellow/brown rock matrix. Scale bar in lower right corner is 5 mm. Middle: an artist's reconstruction of the same fish, anatomically accurate based on fossil material with colouring based on extant genus Micropercops and preserved pigmentation visible in one of the fossil dorsal fins. At the bottom: a map of the Isle of Wight, off the southern coast of England with the fossil locality near Ryde (on the northeastern coast of the island) marked with a yellow star.

New osteological characteristics identify the first stem sleeper goby (Gobioidei, Odontobutidae) from the upper Eocene onlinelibrary.wiley.com/doi/10.1002/... @datadryad.bsky.social #PapersinPalaeontology

The geologic history of marine dissolved organic carbon from iron oxides - Nature A direct proxy for past dissolved organic carbon signatures using co-precipitated organic carbon in iron ooids enables reconstruction of marine dissolved organic carbon signals dating back to the Pala...

🚨 Paper alert! 🚨 After >1 year in review and six (6!) reviewers, I'm thrilled that this paper is finally out! Here, we provide the first data-based record of marine dissolved organic carbon in the geologic past.
www.nature.com/articles/s41...

Physics‐Based Indicators for the Onset of an AMOC Collapse Under Climate Change Multiple AMOC collapses are simulated in the CESM under transient climate change scenarios A physics-based indicator derived from surface buoyancy fluxes is proposed for the onset of an AMOC coll...

"An analysis... of 25 different #climate models shows that the #AMOC could begin to collapse by 2063 (2026-2095, 25th-75th percentiles) under an intermediate emission scenario...

When the AMOC collapses, the NW European climate changes drastically & this will likely induce severe societal impacts"

Macroevolutionary coupling of marine biomass and biodiversity across the Phanerozoic Singh et al. reconstruct ocean biomass over the past 540 million years, finding a long-term rise from the Cambrian to the present, with dips during three of the five major mass extinctions. The biomas...

www.cell.com/current-biol...

Watch a human embryo implant itself — with brute force Video provides an up-close look at a human embryo plunging into tissue that simulates the uterine lining.

A time-lapse film offers a glimpse of a hidden milestone of human development: the moment when the newly formed embryo latches onto the uterine lining. Watch a human embryo implant itself — with brute force

go.nature.com/41jxsaf

“Instead of broad funding increases, programs that specifically target midcareer researchers who are ready to start their labs could help”

Elgar Encyclopedia of Food and Society ‘The best educational texts do not lead but rather gesture. They choose to show instead of tell. This book exemplifies that approach. Food is political. I believe this claim is best illustrated throug...

I am happy to share with you the new "Elgar encyclopedia of food and society", where @martacoll.bsky.social, Santi gorostiza and myself have contributed with the chapter "blue food". More info in www.e-elgar.com/shop/gbp/elg... @imares-group.bsky.social @icmcsic.bsky.social

Top of #Shanghai #632m

Fresh article in PNAS, by Udara Amarathunga & co.
Using geochemical data and numerical models, we identify oxygenation of the Mediterranean and a 33kyr salinity stratification in the earliest Pliocene, both consistent with the Zanclean Megaflood hypothesis
doi.org/10.1073/pnas...

Scientists have developed a soft robotic fish that remains flexible under extremely high pressure and low temperatures, enabling deep sea navigation.

Learn more in #ScienceRobotics: scim.ag/3JkbGNk

Fossilized fish trails reveal earliest steps out of water | Science | AAAS www.science.org/content/arti... 🧪