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Ryan H Glaubke

@ocnogrphr.bsky.social

390 followers 150 following 230 posts

Postdoctoral researcher in the Paleo² Lab at The University of Arizona. Interested in past climates 🌎 and old oceans 🌊. Outdoorsy. Reader. Audiophile. Soccer fan. Cat dad. Opinions subject to change. https://www.ryanglaubke.com

www.ryanglaubke.com

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Ryan H Glaubke @ocnogrphr.bsky.social · Aug 6

🚨 New Paper Alert! 🚨

We reconstructed past ocean salinity in one of the largest Subantarctic Mode Water production centers on the planet: the southeast Indian Ocean. We found a rapid increase in SAMW salinity during the Last Deglaciation.

Where did this salt come from? We argue the deep ocean. 🧪🌊

Elevated shallow water salinity in the deglacial Indian Ocean was sourced from the deep - Nature Geoscience

Increased salinity of Subantarctic Mode Water during the initial phase of the Last Deglaciation could have enhanced deep water formation in the North Atlantic, according to proxy records from a sedime...

www.nature.com

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Ryan H Glaubke @ocnogrphr.bsky.social · 20d

I’m an en-dasher and proud!

Ryan H Glaubke @ocnogrphr.bsky.social · 20d

“The dash is a [normal] tool for constructing sentences! ...Part of what makes them popular, in fact, is that they can feel more casually human… we think and speak in thoughts, which interrupt and introduce and complicate one another in a neat little dance that creates larger, more complex ideas.”

With the Em Dash, A.I. Embraces a Fading Tradition

www.nytimes.com

Ryan H Glaubke @ocnogrphr.bsky.social · Sep 8

What an incredibly fun time in India for #ICP15! All of the chats I last week have given such a burst of inspiration and energy. Between that and the safari, caving, and the invited talk at IISc… I’m so lucky to do what I do, and to do it with all of you!

Now, back to work.

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Reposted by Ryan H Glaubke

The New Yorker @newyorker.com · Sep 3

Since at least the time of Greek philosophers, many writers have discovered a deep, intuitive connection between walking, thinking, and writing.

Why Walking Helps Us Think

Since at least the time of Greek philosophers, many writers have discovered a deep, intuitive connection between walking, thinking, and writing.

www.newyorker.com

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Reposted by Ryan H Glaubke

Bob Kopp @bobkopp.net · Sep 2

The Department of Energy hired five academics to raise doubts about climate change. 85+ climate experts (organized by @andrewdessler.com) reviewed their report. Our conclusion, detailed in 450 pages of analysis: it is biased, full of errors, and not fit to inform policy making.

DOEresponseSite

On July 29, 2025, the Department of Energy (DOE) published a report from its Climate Working Group (CWG). This report features prominently in the EPA's reconsideration of its 2009 Endangerment Finding...

sites.google.com

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Ryan H Glaubke @ocnogrphr.bsky.social · Sep 1

Here we go! #ICP15

Reposted by Ryan H Glaubke

Union of Concerned Scientists @ucs.org · Jul 11

Doctors and advocates are warning of rising burn injuries and vector-borne diseases as climate change intensifies in Arizona. “We are pushing the climate into uncharted territory,” said Dr. Ryan Glaubke, a paleoclimatologist and UCS member, at a recent People’s Hearing event in Phoenix.

azmirror.com

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Ryan H Glaubke @ocnogrphr.bsky.social · Aug 30

So excited for #ICP15 next week!
Anyone want to meet up and talk some science? Hit me up here!

Reposted by Ryan H Glaubke

Pallavi Anand (she/her) @anandpallavijha.bsky.social · Aug 30

#ICP15 welcomes you if you are attending pre-conference workshops on #foraminifera #proxies @oscarbranson.bsky.social and #paleotemperature Antje Voelker 🙏🏼

Detailed programme 👇🏼

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Ryan H Glaubke @ocnogrphr.bsky.social · Aug 26

I’ll be sure to when I see him next month! I’ll be giving the same talk at ODU 👀

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Reposted by Ryan H Glaubke

Kau))) @carbon8.bsky.social · Aug 26

V nice talk by @ocnogrphr.bsky.social this morning at the Indian Institute of Science #IISc on his recently published work on the deglacial “salty blob” in the southeastern Indian Ocean (www.nature.com/articles/s41...)

Dr. Ryan Glaubke-wearing a green shirt-stands behind a desk in front of a screen with a title slide that says “Elevated Shallow Water salinity in the Indian Ocean was sourced from the Deep”.

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Reposted by Ryan H Glaubke

Yuxin Zhou @yzhouclimate.bsky.social · Aug 14

Earth scientists know a lot more about getting out of an ice age than going into one. We report an episode of AMOC slowdown at 115 thousand years ago that's likely astronomically forced (via sea-ice) and coincides with a delayed drawdown of atmospheric CO2 @natcomms.nature.com rdcu.be/eALD1

Abrupt weakening of deep Atlantic circulation at the last glacial inception - Nature Communications

Zhou et al. report an abrupt weakening of the Atlantic Meridional Overturning Circulation at the last glacial inception. The observed circulation slowdown could explain the delayed timing of the atmos...

www.nature.com

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Ryan H Glaubke @ocnogrphr.bsky.social · Aug 14

For any @rfkuang.bsky.social fans, she has a new book coming out and, wouldn’t you believe it, it’s about postgraduates becoming disillusioned with the literal hellscape of the academy 👀

Ryan H Glaubke @ocnogrphr.bsky.social · Aug 13

The short answer: it's a bit complicated.

Temperature-only models seem to work best for surface-dwelling species. But work with our subsurface-dwelling species is limited by the small amount of data. And not to mention the bane of any multivariate regression: collinearity.

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Ryan H Glaubke @ocnogrphr.bsky.social · Aug 13

🚨 Another new paper! 🚨

My coauthors and I gathered data on four planktic foraminiferal species from 115 core tops in the Indian Ocean to test the question: does adding non thermal parameters to Mg/Ca calibrations make them "better" than temperature-only models?

Check out our work below! 🌊🧪

Core-top constraints on the ecology and paleothermometry of planktic foraminifera in the Indian Ocean

The magnesium-to‑calcium ratio (Mg/Ca) of fossil foraminifera is a widely used geochemical proxy for reconstructing past ocean temperatures. Culturing…

www.sciencedirect.com

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Reposted by Ryan H Glaubke

Dan Garisto @dangaristo.bsky.social · Aug 12

Small update: NSF source confirms that new funding opportunities at the agency are currently frozen, which is what the EO dictates (until a new review policy is implemented). Source is hopeful the freeze will be lifted in the coming days though.

Dan Garisto @dangaristo.bsky.social · Aug 8

There are a lot of details in yesterday's sweeping executive order, but the bottom line is that it gives political appointees immense power over scientific grants, which have until now been stewarded by career civil servants and experts.

My reporting:
www.nature.com/articles/d41...

Trump order gives political appointees vast powers over research grants

Researchers are alarmed that the move might upend a long-standing tradition of peer-review for grants.

www.nature.com

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Ryan H Glaubke @ocnogrphr.bsky.social · Aug 7

OMG @paleopaola.bsky.social is on here too! Sorry Paola 😅

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Ryan H Glaubke @ocnogrphr.bsky.social · Aug 7

“…states need standardized and legible information to write good rules and to make good decisions. The original meaning of the word ‘statistics’ is ‘information about the state.’ Without statistics, a state cannot operate effectively. It cannot establish good rules. It cannot make good decisions.”

Opinion | America Will Suffer From Trump’s Assault on Facts

www.nytimes.com

Ryan H Glaubke @ocnogrphr.bsky.social · Aug 6

PREACH

Katie Mack @astrokatie.com · Aug 6

As a physicist I can easily calculate time dilation from relativistic motion (time slows when you're moving fast) or proximity to a massive object (time slows in gravity) but I have yet to find a solution for emotional time dilation (the task takes five minutes to complete but six weeks to start) 🫠

Ryan H Glaubke @ocnogrphr.bsky.social · Aug 6

I want to thank my awesome authorship team for helping me get this paper over the finish line—nearly all of whom are not on BlueSky (except @sindiarocks.bsky.social!).

I also couldn't have done this without the broader #CROCCA-2S team. I'm very lucky to be a part of such a big nerd family!

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Ryan H Glaubke @ocnogrphr.bsky.social · Aug 6

We explore (1) the evidence linking this high salinity event to the deep ocean; (2) why alternative sources (e.g., low-latitude shallow water masses) are insufficient; and (3) the implications this salt would have on the recovery of the overturning circulation at the end of the Last Ice Age.

a man with a mustache and sunglasses is pouring salt on his face .

ALT: a man with a mustache and sunglasses is pouring salt on his face .

media.tenor.com

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Ryan H Glaubke @ocnogrphr.bsky.social · Aug 6

Elevated shallow water salinity in the deglacial Indian Ocean was sourced from the deep - Nature Geoscience

www.nature.com

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Reposted by Ryan H Glaubke

Charlie Austin @chuckles-s.bsky.social · Aug 4

Sounds about right!

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Reposted by Ryan H Glaubke

Ken Caldeira @kencaldeira.com · Jul 31

Climate models have underestimated the departure of high temperature extremes from monthly means.

If we assume these model biases persist in future projections, then the climate models are also likely underestimating the magnitude of future high temperature extremes.

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

Historical model biases in monthly high temperature anomalies indicate under-estimation of future temperature extremes - Communications Earth & Environment

Models tend to underestimate mean monthly maximum temperature anomalies by 2-3% and extreme anomalies by 11-12% over the period 1980 and 2023, which could lead to temperatures 3 °C to 5 °C higher than...

www.nature.com

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Ryan H Glaubke @ocnogrphr.bsky.social · Jul 30

Happy Frantic-Last-Day-To-Submit-To-AGU Day to all who celebrate! #AGU25