Konstantina Agiadi

⚠️ I am very happy to be part of the organising team and to invite you to join our WG1 online Training School under the SaltAges COST Action 🌊

Registration⬇️
🔗https://sites.google.com/view/saltages/home/training-schools/wg1-quantitative-and-hierarchical-methods-in-biogeosciences?authuser=0

#SaltAges

Omg, yes i do too😍

Global and regional Pleistocene benthic δ18O stacks with a comparison of different age modeling strategies Abstract. Constructing accurate age models for Pleistocene marine sediments is crucial for our understanding of glacial-interglacial cycles and other climatic processes. Benthic foraminiferal δ18O sta...

A suite of benthic δ18O stacks intended as updates to the LR04 has been published. We compiled new data, updated the chronology, and provided regional stacks. gchron.copernicus.org/articles/8/8...

New year, new @saltages.bsky.social courses.
More info and link to register at sites.google.com/view/saltage... @costprogramme.bsky.social

Paleotemperatures through the Phanerozoic and the variation of measurement densities through time.

I'm glad to share our new study on the nature of distributions of gaps in empirical geochronologies of geological section as a function of time scale. Measurements of proxies are highly uneven if measured through time.
1/5
 www.nature.com/articles/s43...

🧪 #Geology ⚒️ #Paleobio #EvoBio

Contrasting evolution of the Arabian Sea and Pacific Ocean oxygen minimum zones during the Miocene - Communications Earth & Environment The Arabian Sea and eastern tropical Pacific oxygen minimum zones were better oxygenated during the warm Miocene, but with regional complexities, according to analysis of trace elements and nitro...

🚨New paper out with @alexauderset.bsky.social! We show that the Arabian Sea oxygen minimum zone (OMZ) was better oxygenated during the warm Miocene Climate Optimum than today, but its path to full deoxygenation was slow and complex.
Link to paper: www.nature.com/articles/s43...

If you’re interested in extinction risk, please check out our new paper in @science.org led by my former PhD student Cooper: www.science.org/doi/full/10....

Photo of book page: "Fast Fact: the human race has weed about 1400 cubic kilometres of urine so far. That's enough to keep Niagara Falls flowing for 19 years."

Calling all Palaeoanthropology Researchers to please check whether this "Fast Fact" in my kids' book lines up with the beginning of human origins and Palaeolithic populations

#HardScience
🏺

Let's talk about generative AI, contaminated information, and rhubarb.

Once upon a time, Europe was at war.

Food was scarce, and the government of the quote-unquote United Kingdom looked for alternatives. 1/

🌊✨ From @iMARES_group, we wish you a Merry Christmas and a 2026 full of ocean discoveries!
We’ll keep advancing knowledge to conserve marine ecosystems and ensure their sustainable use.
Thank you for being part of this mission!

#MerryChristmas #Happy2026 #BlueScience

@icmcsic.bsky.social

So... somehow @oscarsproject.bsky.social funded our project! 🎉

FAME - A new open science Framework for spatio-temporal Analysis of Marine Ecosystems. Basically: making marine SDMs easier, FAIR, and slightly less painful.

Huge thanks to @mgraziapennino.bsky.social and @imares-group.bsky.social

Congratulations!!!!

FunSeas - Functional connectivity in ancient seas 🐟🐟🐟🐟🐟🐟🐟🐟🐟

my first project in Spain starts next month
Now looking for students
DM me if you’re interested

sites.google.com/view/kagiadi...

@icmcsic.bsky.social @imares-group.bsky.social @maria-bas.bsky.social

An early Triassic bone bed excavated at 78°N changes the story about how marine life recovered after the most cataclysmic extinction in Earth history ~252 million years ago. The quantity and diversity of marine reptile and amphibian fossils show that these groups had already radiated into complex oceanic ecosystems by ~249 million years ago.

An early Triassic bone bed excavated at 78°N changes the story about how marine life recovered after the most cataclysmic extinction in Earth history ~252 million years ago.

Learn more in this week's issue of Science: https://scim.ag/48bLsGI

Calcifying plankton: From biomineralization to global change The cycling of calcium carbonate (CaCO3) in the ocean is closely linked to seawater alkalinity and the regulation of atmospheric CO2. In the modern pelagic ocean, almost all CaCO3 is produced by three...

Hello! we have a new paper out today in @science.org reviewing Calcifying Plankton : from Biomineralization to Global change 🌊🧪🐚

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

😂

Fig from Guo et al 2023, showing how brachiopod diversity crashed around 250 million years ago after peaking during the Permian, while bivalves show a slow steady increase over the record, except for one small crash in the end-Cretaceous extinction

Brachiopods once were the dominant invert group, but after the Permian-Triassic extinction, bivalves began to run the show. There are 100s of brachs alive, but >20,000 species of bivalves by some counts! Brachs to me are the elves of invert paleo. A noble race reminding us of a better age. (302)

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/...

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...