Seb Breitenbach

Carbonate 206Pb ∕ 238U problems and potential 207Pb ∕ 235U fixes Abstract. Carbonate U–Pb dating has become a key tool for Quaternary palaeoclimatology and palaeoanthropology beyond the age limit of Th–U disequilibrium dating. U–Pb geochronology is based on the pai...

Your wonderful 206Pb/238U clock seems broken? Do not despair, you may be able to fix it using 207Pb/235U! Read here how…. 👇 kudos to Pieter and team, I certainly learned a lot in the process! 🤩😛 gchron.copernicus.org/articles/7/4...

@annabelwolf.bsky.social
@pucicu.de @geochron.bsky.social

For Brits only?! 🤣🤣

Yes indeed! 🤩 @olakwiecien3.bsky.social

Chatkontrolle stoppen! Die EU-Kommission will Messenger-Dienste wie WhatsApp und Signal zwingen, alle privaten Nachrichten und Fotos in Echtzeit zu scannen. Angeblich zum Kinderschutz. In Wahrheit bedeutet die Chatkontrolle...

Bald könnten ALLE Chat-Nachrichten von den Behörden durchsucht werden – selbst ohne Verdacht! Das entscheiden *heute* die Minister*innen. Sag Nein zur Chatkontrolle! Jetzt unterzeichnen ✍️ weact.campact.de/petitions/ch...

So…. Here is a fragment of a fragment of our library… 🤓 all these books make for great reading by the fireplace 📚

Hi All, We are under a week away from out October tech talk! This month we will be hosting our annual student night so don't miss out. Four presenters will be giving talks on their research topics… | IAH NSW Committee Hi All, We are under a week away from out October tech talk! This month we will be hosting our annual student night so don't miss out. Four presenters will be giving talks on their research topics. Please see below for event details. As usual, this talk will be held in person, and online, with details to follow. Topic: Student Night Where: WSP Office Sydney - Level 27 When: Tuesday 14 October 2025 Time: 17:30 for an 18:00 start Event Info: TBC Teams Link: To be provided closer to the event Presenter: Yaggesh Sharma Title: Evaluating pond recharge potential in the Ramganga Basin with data-driven modelling approaches. Presenter: Danyang Sun Title: Classifying drip water responses in karst vadose zone: Insights from Yarrangobilly, Australia. Presenter: Nane Weber Title: Integrating karstification in large-scale hydrological simulations Presenter: Akhilesh Kumar Title: Soil Moisture and Vegetation Are Key Predictors of Precipitation-driven Groundwater Recharge at Australia’s National Groundwater Recharge Observing System (NGROS) Sites

It is IAH 'student night' next Tuesday in Sydney CBD, and there are #groundwater presentations from some of my #UNSW group. Open to all! Details are here:
www.linkedin.com/posts/iah-ns...

Don’t! 😬🫣

We do not ask 😜🤭

Naaa, I don’t think you would gulp the nice morning coffee down without style?! 🫢

Very excited to be a part of this epic journey with @oceanandclimate.bsky.social. Check out our #NSFfunded paper published in @science.org today & his thread below. After that, come back here for more... (1/n)

#Lecturer position in #EarthSciences 👇🏼@openuniversity.bsky.social

Please apply, if interested 🙏🏼

Closing Date: 20 October 2025
Contract Type: #Permanent
Fixed Term Contract/End Date: Not Applicable

jobs.open.ac.uk/job/Lecturer...

Climate-linked escalation of societally disastrous wildfires Climate change and land mismanagement are creating increasingly fire-prone built and natural environments. However, despite worsening fire seasons, evidence is lacking globally for trends in socially ...

Published today: our new paper showing a 44-year trend of increasing global wildfire disasters (fatalities and economic losses) due to climate change-induced extreme weather. www.science.org/doi/10.1126/...

Awesome! 🤩 that could make for interesting samples for studying pollution, or maybe gunpowder usage’?! 😜😇

a close up of a yoda from star wars ALT: a close up of a yoda from star wars

Learn to hide better you must! 🤣

Very good plastic surgery to - it must have been quite a difficult procedure to rescue that much of the trunk! Bravo! 🤗

Awesome! 🤩

This looks like very serious injuries! Bobby - be a bit more careful with noses! Your fren didn’t plan to steal your treatos! 🫣 lucky you to have such skilled hoo-doc! 👩‍⚕️🩻🩺

Major Droughts Coincided with Classic Maya Collapse - Eos Understanding how individual cities responded to climate stress will help create holistic pictures of how these societies functioned.

An incredibly high resolution paleoclimate record has revealed several major, extended droughts that coincide with the period of Classic Maya collapse.

Borg cube #Perovskite it is! #startrek

🤩

Atgh… time zones and spare time do not always align… 🤣😬

Although #hematite stained grains from the North Atlantic tell about past ice dynamics (very cool) I vote for #haüyne - just beautiful (and sometimes fluorescent under UV light!)! 🤩

Abstract: Under the banner of progress, products have been uncritically adopted or even imposed on users — in past centuries with tobacco and combustion engines, and in the 21st with social media. For these collective blunders, we now regret our involvement or apathy as scientists, and society struggles to put the genie back in the bottle. Currently, we are similarly entangled with artificial intelligence (AI) technology. For example, software updates are rolled out seamlessly and non-consensually, Microsoft Office is bundled with chatbots, and we, our students, and our employers have had no say, as it is not considered a valid position to reject AI technologies in our teaching and research. This is why in June 2025, we co-authored an Open Letter calling on our employers to reverse and rethink their stance on uncritically adopting AI technologies. In this position piece, we expound on why universities must take their role seriously toa) counter the technology industry’s marketing, hype, and harm; and to b) safeguard higher education, critical thinking, expertise, academic freedom, and scientific integrity. We include pointers to relevant work to further inform our colleagues.

Figure 1. A cartoon set theoretic view on various terms (see Table 1) used when discussing the superset AI (black outline, hatched background): LLMs are in orange; ANNs are in magenta; generative models are in blue; and finally, chatbots are in green. Where these intersect, the colours reflect that, e.g. generative adversarial network (GAN) and Boltzmann machine (BM) models are in the purple subset because they are both generative and ANNs. In the case of proprietary closed source models, e.g. OpenAI’s ChatGPT and Apple’s Siri, we cannot verify their implementation and so academics can only make educated guesses (cf. Dingemanse 2025). Undefined terms used above: BERT (Devlin et al. 2019); AlexNet (Krizhevsky et al. 2017); A.L.I.C.E. (Wallace 2009); ELIZA (Weizenbaum 1966); Jabberwacky (Twist 2003); linear discriminant analysis (LDA); quadratic discriminant analysis (QDA).

Table 1. Below some of the typical terminological disarray is untangled. Importantly, none of these terms are orthogonal nor do they exclusively pick out the types of products we may wish to critique or proscribe.

Protecting the Ecosystem of Human Knowledge: Five Principles

Finally! 🤩 Our position piece: Against the Uncritical Adoption of 'AI' Technologies in Academia:
doi.org/10.5281/zeno...

We unpick the tech industry’s marketing, hype, & harm; and we argue for safeguarding higher education, critical
thinking, expertise, academic freedom, & scientific integrity.
1/n

This is simply scary! I fear that many in the climate community privately already made their ‘peace’ with this scenario 🫣😬. political action is so 1980ies that any optimism that humanity will pull the rudder around in time seems just far-fetched

Yes indeed 🤗👇 as detailed as this new record is, we need more and longer such time series - but we will get there… it just takes time! 😎😅

Watch and learn about caves and climate in Angola! 🤩 members of the Speleoclub Berlin participated in the expedition 👇

10 km 😎🎉💪👇

Here some nice story and commentary on our recent work in #Yucatan with @olakwiecien3.bsky.social, the Godwin lab and so many others! Kudos to all our friends that support our research in this lovely region! 🥰

Major Droughts Coincided with Classic Maya Collapse - Eos Understanding how individual cities responded to climate stress will help create holistic pictures of how these societies functioned.

Drought was likely one of many stressors affecting Classic Maya cities. This paleoclimate record can help construct holistic pictures of how Maya cities responded to climate stress.

eos.org/articles/maj...

I just received Science Under Siege written by @peterhotezmdphd.bsky.social and @michaelemann.bsky.social

The timing is so apropos having recently read The Deadly Rise of Anti-science: A Scientist's Warning

Dark is the hour! Hope must be the light in the tunnel- but it needs truth as fuel - and somebody to say it! Thank you for your work and hold fast! 💪