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Jesse Farmer

@jfarmersalmanac.bsky.social
483 followers 181 following 96 posts

Assistant Professor of Geology & Paleoclimate @ UMass Boston's School for the Environment. Climate change, nitrogen cycle, carbon cycle, surfing (not necessarily in that order). jfarmersalmanac.com

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Reposted by Jesse Farmer
Geoff Brumfiel @gbrumfiel.bsky.social · 06/10/2026
The IceCube neutrino detector has won the 2026 Nobel Prize in physics. The Trump administration has proposed slashing its budget in half in 2027.
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Laura Castro-Diaz @lauracastrodiaz.bsky.social · 01/10/2026
Check out our community-based project in East Boston! We worked with community members to identify their key EJ issues using community mapping and photo voice. English Version: storymaps.arcgis.com/stories/2697... Versión en Español: storymaps.arcgis.com/stories/a4b7...
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Global Ocean Biogeochemistry Array @globaloceanbgc.bsky.social · 30/09/2026
El Niño is building in the Pacific, and our BGC-Argo floats are watching. As warm water cuts off the nutrient supply, phytoplankton shift deeper to find what they need to grow, particulate carbon drops, and there's less biomass to feed the rest of the food web. 🌊 #ElNiño @bgc-argo.bsky.social
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Roberta Hotinski @hotinski.bsky.social · 18/09/2026
GO-BGC has nearly completed deploying our global biogeochemical float array, but our future is uncertain. Join us for an OCB-hosted webinar on GO-BGC's status and role in ocean observing on Wed.,Sept. 23 at 10 am PT / 1 pm ET. tinyurl.com/bdct692k @usocb.bsky.social @globaloceanbgc.bsky.social
Map of GO-BGC floats
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Jesse Farmer @jfarmersalmanac.bsky.social · 18/09/2026
Sharing a new pub on the Late Pleistocene ventilation history of the Arctic Ocean from boron isotope paleo-pH reconstructions! We find lower pH in the deep Arctic Ocean relative to the surface Nordic Seas during the last glacial period, indicating weaker ventilation dx.doi.org/10.1029/2026...
dx.doi.org
Boron Isotope Evidence for Reduced Ventilation of the Deep Arctic Ocean During the Last Glacial Period
Past deep Arctic Ocean pH quantified from boron isotopes in benthic foraminifera Deep Arctic Ocean pH was reduced relative to the surface Nordic Seas during Last Glacial Period Interglacial mode...
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Jesse Farmer @jfarmersalmanac.bsky.social · 15/09/2026
Lolsob
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Reposted by Jesse Farmer
Gareth Funning @gfun.earth · 15/09/2026
NSF GEO webinar summary: we have reduced programs from 15 down to 3, we have no deadlines, we have no guidelines on project size, duration or budget, we have no money
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Jaime Palter @jaimepalter.bsky.social · 10/09/2026
🌊 I searched the long version of NSF’s letter on “a New Golden Age of Science.“ There is no mention of any of the following words: planet, Earth, ocean, atmosphere, climate, weather, or the stem “geo.”
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Carl T. Bergstrom @carlbergstrom.com · 10/09/2026
I started translating the announcement into plain English, but got too depressed to continue before I even reached the most pernicious parts in the "full letter" linked.
Dear Colleagues,
The U.S. National Science Foundation was established in 1950 to keep American discovery at the frontier. That mission has not changed. But the political landscape has. So it all ends. Now.
We've heard this message clearly from researchers across disciplines and settings. Science today is no longer a straight line from laboratory to application. We aim to cause maximal harm to universities by diverting funds elsewhere. Rather than investing public funding to generate massive positive externalities, we prefer allowing billionaires to set the scientific rese agenda . Someone—you’ll never guess who—convinced us to pour what money we do spend into AI.
To meet this moment, NSF is embracing a portfolio approach, where much more of our funding can be diverted to industry. We are expanding who carries out NSF-supported work and how, to enable ambitious, multidisciplinary inquiry at the scientific frontier, where frontier is defined as what we want to fund. We will find and support exceptional students and early-career researchers, at the stage when research creativity is high, so long as they US citizens of the right kind. Our new Office of Metascience will implement unproven methods to make a show of assessing the effectiveness of new initiatives, and more importantly will leverage that Gold Standard Science bullshit to eliminate programs in geosciences, basic biology, all aspects of social science, and anything else that makes the Christian right uncomfortable.  
We’e already pretty much gutted the entire agency. Funding is at a near stand-still, and the agency has become unresponsive to researchers to a degree that was unimaginable only two years ago. We know none of this succeeds without you, NSF's staff, reviewers, awardees, students, and partners across academia and industry. NSF's role is to create conditions for exceptional science to happen more often and more frequently. We are redoubling our commitment to do so through these efforts.
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Jesse Farmer @jfarmersalmanac.bsky.social · 10/09/2026
There’s ideas to like in this letter if NSF’s budget doubled from FY24. However, it is very hard to take this seriously from an admin that cut the existing programs (many by > 50%) which set the international gold standard of science. This admin grabbed the buzzword & tossed the foundation.
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Jesse Farmer @jfarmersalmanac.bsky.social · 01/09/2026
Great thread here. The first thought I had upon hearing the SpaceX Louisiana plan was, how will they deal with large, and repeated, hurricanes? SW Louisiana has been absolutely slammed with tropical activity in the last several decades, and there is little elevation around…
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Reposted by Jesse Farmer
Joe Levy @colddirt.bsky.social · 23/08/2026
Paleoclimate peeps - come work with us at Colgate! apply.interfolio.com/188708 Review of applications starts Sept. 1.
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Kris Karnauskas @oceansclimatecu.bsky.social · 11/08/2026
Editorial about Supporting Information at @agu.org's GRL. Long story short: it's the function, not the quantity. agupubs.onlinelibrary.wiley.com/doi/10.1029/...
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Maayan Yehudai @maayanyehudai.bsky.social · 07/08/2026
I'm thrilled to share my paper, out in Nature Communications: "Reduced N₂ fixation in the tropical Atlantic Ocean during the warm late Pliocene." Open access: doi.org/10.1038/s414... 🧵 (1/8)
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Jesse Farmer @jfarmersalmanac.bsky.social · 07/08/2026
Excited to share a new publication led by @maayanyehudai.bsky.social, "Reduced N2 fixation in the tropical Atlantic Ocean during the warm late Pliocene," out in Nature Communications today! Open access: www.nature.com/articles/s41... (1/~8)
nature.com
Reduced N2 fixation in the tropical Atlantic Ocean during the warm late Pliocene - Nature Communications
Tropical Atlantic nitrogen isotope records show that N₂ fixation was reduced during the warm late Pliocene due to decreased global water column denitrification. It increased as Earth cooled into the P...
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Dr. Brooke Weigel @brookeweigel.bsky.social · 04/08/2026
Stanford University is searching for a tenure-track Assistant Professor in the field of Climate Science 🌎 ✨ Broad search, department may be any within the Doerr School of Sustainability, including Oceans! 🌊 Apply by Nov. 1. Please share! facultypositions.stanford.edu/jobs/assista...
facultypositions.stanford.edu
Assistant Professor in Climate Science - Stanford University, California, United States
Stanford University invites applications for a tenure-track Assistant Professor in the field of Climate Science. The home department may be any of the seven departments in the Stanford Doerr School of...
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Alfred Wegener Institute @awi.de · 03/08/2026
The Arctic's permafrost stores large quantities of organic carbon. Researchers from the AWI and @marumunibremen.bsky.social have shown that large quantities of this carbon, released by thawing permafrost and coastal erosion, are permanently buried in seafloor sediments. www.awi.de/en/about-us/...
awi.de
The Arctic Ocean keeps permafrost carbon firmly locked
Permafrost in the Arctic stores large quantities of organic carbon. When the frozen ground thaws or coastal sections erode, this carbon can enter the sea, where microorganisms can break it down and co...
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Reposted by Jesse Farmer
Deepti Singh @climatechirper.bsky.social · 24/07/2026
🥵 Heat domes! What exactly are they? In this timely new paper led by Paul Loikith, we provide a quantitative definition based on circulation and surface temperatures and present their climatology. Figure ⬇️ shows proportion of extreme heat events associated with a heat dome doi.org/10.1016/j.wa...
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Reposted by Jesse Farmer
David Roberts @volts.wtf · 18/07/2026
We didn't previously integrate wildfire-smoke costs into the supposed cost of climate change for the US, and it turns out to be bigger than all those other costs combined. Oops! Gosh I wonder if we're underestimating anything else. Probably shoulda done something about this. Ah well.
heatmap.news
What Worries Me Most About This Wildfire Smoke
We didn’t know days like this could happen. Then we learned how bad they really are.
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Hakeem Jefferson @hakeemjefferson.bsky.social · 17/07/2026
The president is a liar. He lies constantly & without hesitation. His lies about American elections are among his most dangerous b/c they are meant to convince a susceptible public that democratic outcomes cannot be trusted. They are antidemocratic lies in service of holding onto power. He’s a liar!
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Dr. Jeff Masters @drjeffmasters.bsky.social · 15/07/2026
Canadian AQI model has joined the U.S. models in predicting potentially record-breaking smoke levels Wed-Fri in the Great Lakes. A bad look for the Detroit, Milwaukee, Cleveland, Buffalo, and Toronto metro areas. The EPA site to judge records is down, not removed, as I incorrectly stated before.
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Prof Friederike Otto @frediotto.bsky.social · 03/07/2026
250 years of burning fossil fuels fuelled a record shattering humid heatwave in Eastern North America for the 250th anniversary celebrations on 4th of July. Turning any outdoor activities into a dangerous health risk. - @wwattribution.bsky.social www.worldweatherattribution.org/fossil-fuels...
Timeseries of the highest 5-day wet bulb globe temperature over a region bounded by the box to 95°W to 67°W and 35°N to 50°N. 2026 by far highest value highlighted in pink.
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Paul Harnik @paulharnik.bsky.social · 28/06/2026
We are pleased to announce that the Dept of Earth & Environmental Geosciences @colgate.edu is hiring a tenure-stream asst professor in paleoclimate! For additional info regarding the position & to apply: apply.interfolio.com/188708 . Please share broadly & contact us with your questions. Thank you!
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Brandon Bishop @brandontbishop.bsky.social · 24/06/2026
Another week, another update to the abysmal National Science Foundation funding numbers for geoscience. Total of 164 geo grants awarded this year, 25.6% of the pre-Trump average. source: grant-witness.us/funding_curv...
A plot showing the number of grants awarded by the geoscience directorate for the federal fiscal years of 2021 through 2026. Pre-Trump numbers are all roughly the same, 2025 is about half of the pre-Trump average and this year is consistently a quarter of the pre-Trump average. In prior years new grants were rapidly awarded between July and mid-August before basically stopping around late August. Not yet clear if this year's curve will follow a similar pattern.
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Jesse Farmer @jfarmersalmanac.bsky.social · 22/06/2026
In another fine move, Russ Vought and the Trump Admin have decided to steal a billion dollars in funding earmarked to basic science research and give it to hedge funds to try out half-baked AI ideas. Cool.
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Reposted by Jesse Farmer
Noam Ross @noamross.net · 19/06/2026
NSF's grantmaking is miserly when compared to recent years, but when compared it to the historical record, we see it's a radical break from the long-term consensus of investing in scientific innovation. grant-witness.us/posts/2026-0... #NSF 🧪
grant-witness.us
The NSF is on Track for its Worst Year in Generations – Grant Witness
Throttling of science funding is utterly unprecedented and radical when compared to the past 50 years.
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Gernot Wagner @gwagner.com · 12/06/2026
The perfect obit headline for this particular climate denier, who knew better but preferred to live a lie heatmap.news/daily/lee-raymond
Lee Raymond, 311 ppm – 421 ppm
The former ExxonMobil CEO left his legacy both on the Earth and in the sky.
Robinson Meyer
•
June 11, 2026
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Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 29/05/2026
NEW: A lot of bad has happened to American science over the last year but nothing comes even close to what’s about to happen if we don’t speak out in opposition to the OMB rule changes and I hope @aaas-socsci.bsky.social @apsphysics.bsky.social and others will launch public campaigns about this. 🧪🔭⚛️
news.chanda.science
It's the End of American Science As We Know It
We have 45 days to express our opposition to catastrophic changes.
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Jacquelyn Gill @jacquelyngill.bsky.social · 29/05/2026
🧵 Public science in the US has taken some heavy hits over the last year, but the White House OMB is proposing a series of changes that will result in a TKO for science as we know it unless we fight back. Here's what's happening, and why it matters. 1/n
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Aaron Putnam @aaronputnam.bsky.social · 19/05/2026
🚨New paper alert! Former UMaine M.S. student, Jill Herlinger (now at Northwestern), led a brilliant paper that utilizes Mg/Ca and δ¹⁸O on foraminiferal calcite in the Gulf of Maine to show that that the Laurentide Ice Sheet was melting and retreating like crazy during Heinrich Stadial 1... 1/
Map of the Gulf of Maine, with key core site plotted from which the foraminiferal Mg/Ca and oxygen isotope record was derived (open orange circle).
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David Roberts @volts.wtf · 15/05/2026
Another for instance! Down in Queensland, Australia, fossil gas used to provide all the peak power. Then batteries start nibbling at it. Then chomping on it. And now they've basically eaten it all up. No more gas. Look at this graphic! Glorious. reneweconomy.com.au/big-batterie...
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Justin S. Mankin @jsmankin.bsky.social · 13/05/2026
Rainfall intensity matters as much as how much rain falls. New in Nature: Corey Lesk and I show that daily-scale concentration of precipitation dries the land over the long-run, an effect as strong as total precipitation is climatological wetting. Paper here: www.nature.com/articles/s41...
nature.com
More concentrated precipitation decreases terrestrial water storage - Nature
Concentration of precipitation in large events decreases land water availability, and this effect will further increase with a future warming climate.
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Amelia Shevenell @ashevenell.bsky.social · 06/05/2026
As many know, there was a massive fire at USF CMS. The building held offices, labs, equipment, etc and is a total loss. We are most concerned about the finanpcial losses of our students. Please consider donating to the official go fund me supporting our graduate students.
gofundme.com
Donate to USF Marine Science: Fire Recovery Support, organized by Bella Iannotta
On Saturday, May 2nd the University of South Florida Marine Science Lab (MSL)… Bella Iannotta needs your support for USF Marine Science: Fire Recovery Support
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Bor-Ting Jong @bortingjong.bsky.social · 02/05/2026
Our latest study on the reversal of extreme precipitation trend over the Northeast US in response to aggressive climate mitigation has been published in Environmental Research Letters (doi.org/10.1088/1748...). #OpenAccess via @ioppublishing.bsky.social @iopp-environment.bsky.social
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Jesse Farmer @jfarmersalmanac.bsky.social · 26/04/2026
@warren.senate.gov @markey.senate.gov @repauchincloss.bsky.social The Trump administration appears to continue to try and circumvent Congress’ desire to keep US scientific research independent, or even possible… greatly appreciate your attention to this!
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PAGES (Past Global Changes) @pages-ipo.bsky.social · 21/04/2026
🥳 It’s out! 📢 New PAGES Magazine: “The essence of time” Explore gaps, challenges & future directions in geological dating - from biostratigraphy to radioisotopic methods. ⭐ Read here: pastglobalchanges.org/publications... #PAGES #Paleoscience #EarthScience @marumunibremen.bsky.social
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cira-csu.bsky.social @cira-csu.bsky.social · 02/04/2026
From its angled view, GOES-18 also captured the historic launch of Artemis II.
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Woods Hole Oceanographic Institution @whoi.edu · 30/03/2026
Imagine finding the last person who speaks a lost language—and having only a short time to learn from them. Polar scientists are facing a similar time crunch as ancient ice emerges + melts along Alaska’s coast. 📲 Learn more from WHOI’s Sarah Shackleton in @science.org go.whoi.edu/icerelic
A person dressed in a fur-lined parka and colorful ski goggles holds a large, translucent block of ice. The jacket is dusted with snow. A camera on a tripod is positioned nearby, capturing the scene.Close-up of textured ice with intricate, frosty patterns and crystalline structures. The surface glistens, showcasing layers of translucent and opaque ice mixed with delicate snowflakes.Close-up of rugged, layered terrain showing a clear, crystalline ice sheet embedded within gray, cracked soil and rocky surface. The ice glistens with white striations, contrasting sharply against the earthy textures and colors.
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Felix Elling @lipidorama.bsky.social · 29/03/2026
Just published: our comprehensive review of bacterial hopanoid & steroid biosynthesis, function, evolution, and diagenesis. We cover decades of research across multiple disciplines and highlight many remaining open questions. More context provided below👇 link.springer.com/rwe/10.1007/...
link.springer.com
Bacterial Hopanoid and Steroid Biosynthesis, Function, Evolution, and Diagenesis
A wide diversity of bacteria produces hopanoids, which are pentacyclic triterpenoid lipids. A smaller subset of bacteria produces steroids, tetracyclic triterpenoid lipids that, like hopanoids, are bi...
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Kevin Anchukaitis @thirstygecko.bsky.social · 29/03/2026
As @triptychphrases.bsky.social showed, these summer temperatures on the California margin can have important implications for summer precipitation (extremes) in the south/west US iopscience.iop.org/article/10.1...
iopscience.iop.org
California margin temperatures modulate regional circulation and extreme summer precipitation in the desert Southwest
California margin temperatures modulate regional circulation and extreme summer precipitation in the desert Southwest, Bhattacharya, Tripti, Feng, Ran, Maupin, Christopher R, Coats, Sloan, Brennan, Peter R, Carter, Elizabeth
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Paul Carini @uncultured.carinilab.com · 17/03/2026
And if you have not been accepted, understand that this is a VERY weird time for grad admissions. Lack of acceptance may not be due to YOU, but due to uncontrollable factors at the university. Keep trying in the future.
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Jesse Farmer @jfarmersalmanac.bsky.social · 10/03/2026
Stoked to contribute to this excellent work by Chandranath et al. reconstructing the circulation history of the deep South Pacific across the MPT. When accounting for endmember Nd isotope change, the records point toward Southern Ocean processes as initiating the MPT 👀👀
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Reposted by Jesse Farmer
Chandranath Basak @climchem.bsky.social · 08/03/2026
Interested in mid-Pleistocene transition? Check out our latest paper 👉🏽 www.science.org/doi/10.1126/... @us-sciod.bsky.social @kapuge9paleo.bsky.social @jfarmersalmanac.bsky.social @julgottschalk.bsky.social #paleoceanography #EXP383
science.org
Southern Hemisphere initiation of the mid-Pleistocene transition
A South Pacific neodymium isotope time series suggests Antarctic ice sheet growth triggered the mid-Pleistocene transition.
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Prof Ian Hall @ianhall.bsky.social · 01/03/2026
📣 Our latest IODP Expedition 361 paper: Southern Ocean carbon stratification across the MPT 🌊 What controlled ice-age CO2? Our new record reveals recurring deep carbon release — and a surprising decoupling after ~0.3 Ma. Check it out 👇 agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com
Southern Ocean Vertical Carbon Stratification Across the Mid‐Pleistocene Transition
Breakdowns of Southern Ocean carbon isotope stratification occur at multiple glacial terminations back to at least 1.55 million years ago An increasingly efficient Southern Ocean biological pump ...
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Jesse Farmer @jfarmersalmanac.bsky.social · 01/03/2026
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/...
agupubs.onlinelibrary.wiley.com
Southern Ocean Vertical Carbon Stratification Across the Mid‐Pleistocene Transition
Breakdowns of Southern Ocean carbon isotope stratification occur at multiple glacial terminations back to at least 1.55 million years ago An increasingly efficient Southern Ocean biological pump ...
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Lamont-Doherty Earth Observatory @lamont.columbia.edu · 27/02/2026
Job alert! Marine/Large Programs division of @lamont.columbia.edu seeks research scientist to serve as Science Program Officer for @us-sciod.bsky.social Coordination Office to conduct research, data collection/analysis, and outreach. Please share! ➡️ academic.careers.columbia.edu/#!/17…
Detail of a research ship on the ocean with orange light on the horizon where water meets the dark sky and the text Marine/Large Programs
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Dr. Alizée Roobaert 🐠 @roobaertalizee.bsky.social · 25/02/2026
If you're interested in ocean carbonate chemistry, check out this new paper 🌊 A comprehensive overview of 68 existing ocean carbonate chemistry data products and datasets including cruise data compilations, gap-filled products, model simulations, .. Please share! essd.copernicus.org/articles/18/...
essd.copernicus.org
Synthesis of data products for ocean carbonate chemistry
Abstract. As the largest active carbon reservoir on Earth, the ocean is a cornerstone of the global carbon cycle, playing a pivotal role in modulating ocean health and the Earth's climate system. Unde...
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Graeme MacGilchrist @gmacgilchrist.bsky.social · 07/02/2026
Myself and @davidho.bsky.social are convening a panel discussion at #OSM26 on "Ocean science in a time of political uncertainty". Please join us there!
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Jeremy Berg @jeremymberg.bsky.social · 05/02/2026
More on NSF funding data A deeper dive into the numbers of awards by Directorate. 1/9
media.tenor.com
a picture of a person in the water with the words call of the deep below it
ALT: a picture of a person in the water with the words call of the deep below it
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Yuxin Zhou @yzhouclimate.bsky.social · 05/02/2026
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...
gchron.copernicus.org
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...
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