The word “unprecedented” gets thrown around a lot these days to describe the ongoing heatwave across the Western U.S., and let’s be honest — it’s absolutely justified. Perhaps the most impressive multi-day event since the 2021 PNW heat dome.

Led by PRL student Deepak Rai, we recently had a new paper out showing that the Oxygen Minimum Zone in the Arabian Sea *expanded* in size during the last glacial cycle @arvindocean.bsky.social agupubs.onlinelibrary.wiley.com/doi/full/10....

Wondering how *anything* can be "broadly stable" across the Pleistocene Ice Ages...

eos.org/articles/how... 🌊

Fantastic work by Aidan Starr, @ianhall.bsky.social & colleagues published in Paleo Paleo yesterday: Subsurface-to-deep C isotope gradients in the Southern Ocean across the MPT! agupubs.onlinelibrary.wiley.com/doi/10.1029/...

“The authors claim these are spherule fragments identified as cosmic impact indicators. During expert consultation, these have been identified as marine foraminifera.” 💀

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...

Starting my academic reading this year with a fascinating study documenting the frequency of tropical cyclones in the South China Sea over the past ~650 years. We need more of this type of data to understand extreme weather patterns and their relationship with climate. www.pnas.org/doi/10.1073/...

The Prudhoe Dome, currently a 500m-thick ice dome attached to the northwestern Greenland Ice Sheet, completely melted away ~ 7,000 years ago in response to Holocene warming. www.nature.com/articles/s41...

A "fling" of Least Sandpipers—mesmerizing how they become a collective, organized, and synchronized entity 🪶

Here's a majestic Northern Harrier in flight, spotted in Avra Valley (southern AZ) 🪶 Fun fact: apparently Northern Harriers are moving their range into NE Russia for the first time in recorded history over the past few years (link.springer.com/article/10.1...)

Seaweed pressing as an art and a science: our newly reestablished herbarium collection at Scripps and the history behind it #Phycology

Revisiting Paysage d’Hiver’s Die Festung after… too long—vast, hypnotic, immersive, solemn, and unsettling wintry atmospheres. ❄️ #DarkAmbient www.youtube.com/playlist?lis...

Led by Pete van Hengstum (Texas A&M), we have a new article out focusing on water balance ☔️ in the #Caribbean region over the past two millennia (+ implications for future changes under #climatechange), using a coastal Blue Hole in the Bahamas as a natural archive! www.nature.com/articles/s43...

New octopus dropped down in Coral City 👽✌️🐙 #octopus #cephalopodsofcoralcity #cephalopod #headfoot #alien #dropdown #peaceout #coral #coralhead #coralcitycamera #miami #portmiami #biscaynebay #coralcity

Finally out! The outcome of a virtual workshop in Feb 2024 with modelers and observationalists to put together data and protocols to include historical changes in ice sheet/ice shelf discharge in CMIP models. Hopefully not too late for some CMIP7 runs! gmd.copernicus.org/articles/18/...

Huge paper for the Arctic Ocean published today in @science.org - a new 30,000 year history of Arctic Ocean sea-ice cover reconstructed from the accumulation of cosmic dust-derived helium-3! www.science.org/doi/10.1126/... (1/n)

Jay was on my PhD committee and taught me carbonate geochemistry, and to approach my speleothem problems with patience and depth. I’m deeply grateful for the time I got to learn from him. His influence will always remain a part of my journey. Will miss you, Jay!

A sad piece of news: I am heartbroken to learn that Jay Quade passed away today—a profound loss for our geoscience community. Jay was an inspirational scientist, an exemplary colleague, and an extraordinary human being. I’ll miss you, Jay! 😞

I'm also quite happy that Yair Rosenthal (a friend and mentor) and @anya-hess.bsky.social wrote a Perspective on our work. www.science.org/doi/epdf/10....

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)

When a hurricane can take off, boy does it take off: the 2025 Atlantic hurricane season story. Watch Humberto also rapidly intensify from a lopsided tropical storm to a major hurricane. Notable intensity changes: - 40 to 125 kt within 48 hours - 65 to 125 kt within 24 hours

It's amusing to me how geologists use *extremely* high-resolution datasets for topography, but then forget (?/ignore/don't know?) that equally high-resolution data exists for the atmosphere... and that unrealistic/artistic/fantastical depictions of winds are not necessary (nor scientific). /rant

🚨New work🚨 led by Ph.D. student Dipesh Chuphal (IIT Gandhinagar), shows that the recent drying of the Ganga River basin is unprecedented in 1,300 years—more severe than historical famines. This ~multidecadal drying appears forced, but many models do not capture it. ☔️ 🌧️ www.pnas.org/doi/10.1073/...

E-see you all the climate enthusiasts at our upcoming ICCP speleothem lecture series on 25th September with Dr. Stacy Carolin Zoom link: pusan.zoom.us/j/8901635789...

Happy #fossilfriday Checkout this cool #Mississippian ? #brachiopod which I believe is #Composita encrusted by some #bryozoa #fossilsofmissouri

🌊 🔬 New in #Marine #Geology: Ph.D. student Ammoose Jayan (CU Kerala/Fulbright @uarizona.bsky.social) shows that "pink" #foraminifera Globigerinoides ruber survived in the Indian Ocean until 8 kyr BP—and did not go extinct in the Indian Ocean at 120 ka! 🔗 doi.org/10.1016/j.margeo.2025.107656

I got lucky with this stunning Indian White-Eye seen slightly outside #Bengaluru, #India! 🪶

Here's a magnificent (albeit somewhat clunky) male #Peafowl in flight seen close to #Bengaluru last week. #peacock #birds 🪶

Crazy that you can no longer hear the original mono sound designs for A CLOCKWORK ORANGE, THE SHINING, and FULL METAL JACKET. The only versions available are the remixed 5.1 versions, which often feature different sounds. An excerpt from Valerio Sbravatti's brilliant video essay on the subject:

Nice gift "Plate Tectonics Flip Book" from the author Ch. Scotese to our tectonist J. Lazauskienė 😀

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...

I have a feeling reality is about to hit…#ICP15 😬 Biomineralisation in foraminifera: how do they do it and does it affect application of proxies? By Leenart de Nooijer

Now at #ICP15, River Shen from #NTU #Taiwan gives our first talk on #spleothems incl. their use as #hydroclimate records, how his team is pushing the bounds of U/Th #geochronology, & various applications of #speleothem #geochemistry including for #temperature change, #weathering, and #pollution.

Happening now at #ICP15: @triptychphrases.bsky.social shifts gears from Asia & provides a comprehensive overview of #Quaternary changes in the North American #Monsoon & talks abt plausible parallels between past and future climate #extremes 🌊

After coffee ☕️, Ed Hathorne from @geomarkiel.bsky.social talks about how marine sedimentary #clays & radiogenic #isotopes can be used to constrain long-term changes in #weathering, and thus, Indian summer #monsoon intensity in Bay of Bengal sediments. 🌊

Today is the #Monsoon session at #ICP15 —great talks this AM, with session kicked off by Prof. AD Singh from BHU 🇮🇳 on Indian-margin marine sediment reconstructions of Indian Summer Monsoon strength using #foraminfera -based water-column indicators. Eg www.sciencedirect.com/science/arti... 🌊 (1/3)

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Having experienced a bit of the intensity of the Indian Monsoon this week at #ICP15, it’s good to start day 4 with an update on its evolution and spatio-temporal variability from A.D. Singh

Great talks today at #ICP15 Day #3 with @hl-ford.bsky.social providing a comprehensive overview of Pliocene tropical Pacific 🏝️ model-data 🖥️ comparisons, & Lukas Jonkers highlighting recent advances in foraminiferal 🐚 paleoecology & pelagic paleobiogeography 🌊

What is the capacity of the oceans to absorb heat? Heather Ford explains insights from the Pliocene, ~3 million years ago, at #ICP15

🌊 In 2023, oceans should’ve absorbed more CO2 due to El Niño, but they didn’t Despite cooler tropical Pacific waters, record-high SSTs led to ~10% less ocean CO2 uptake than expected, especially in the Northern Hemisphere Warming waters = weaker carbon sink www.nature.com/articles/s41...

Also forgot to tag @alexauderset.bsky.social! #ICP15

Forgot to tag @arvindocean.bsky.social‬ ! #ICP15 #OMZ

Happening now @ #ICP15: Sophie Hines from @whoi.edu delves deep into deep #ocean #carbon storage, neodymium isotopes, and circulation at 900 ka & how Southern Ocean processes were involved (no crisis!) in the mid-Pleistocene transition, when #glacial cyclicity shifted from 40-kyr to 100-kyr pacing!

@guillaume-leduc.bsky.social, isotope geochemist and paleoclimatologist in our team, just joined us on #bluesky! Welcome!

Next up #ICP15: I really enjoyed Xu Zhang's interesting new results on how #Antarctic ice-sheet dynamics may have played a pivotal role in modulating atmospheric CO₂ and the resulting intensification of #interglacials after the mid-Brunhes event around 400,000 years ago!

After the coffee break, Margit H. Simon gave a v interesting talk showing how #sea #ice in the Nordic Sea may be a key region for the initiation & propagation of abrupt-scale Dansgaard/Oeschger events observed in the last ice age; marine radiocarbon leads the NGRIP ice core by ~centuries! #ICP15

Day #2 of #ICP15 kicks off with talks on Overturning #ocean Circulation variability & impacts—1st, Cristiano Chiessi on how Atlantic MOC changes need to be factored into Amazonian tipping-point assessments. Now: Frerk Pöppelmeier on future #AMOC changes & how a "full collapse" may not be likely...

Raja Ganeshram delivered yesterday's plenary lecture on #ocean #deoxygenation variability & showcased some amazing decadal-scale #nitrogen isotope δ¹⁵N records across multiple (de)glacial #climate states. #ICP15