Jannes Koelling
@koelling.bsky.social
Researcher at University of Washington studying ocean oxygen and ventilation
Pinned
Our new 🌊 paper “Progressive oxygenation of the North Atlantic Subpolar Gyre” is out @jgroceans.bsky.social (open access): agupubs.onlinelibrary.wiley.com/doi/10.1029/...
We examined the breathing of one of the ocean’s lungs 🩺 and found some surprises
Paper summary in schematic, more info ⬇️
1/🧵
We examined the breathing of one of the ocean’s lungs 🩺 and found some surprises
Paper summary in schematic, more info ⬇️
1/🧵
Reposted by Jannes Koelling
Katie’s path to the Mayor’s office depends upon your ballot — and probably your friends’ and coworkers’, too! Track your ballot and fix any issues at the following links! Next, send these links to 10 friends and family to make sure Katie wins. #thisisyourcity
November 10, 2025 at 9:41 PM
Katie’s path to the Mayor’s office depends upon your ballot — and probably your friends’ and coworkers’, too! Track your ballot and fix any issues at the following links! Next, send these links to 10 friends and family to make sure Katie wins. #thisisyourcity
“Essentially we are adding more carbon debt to our planetary credit card, leaving future generations with an unpayable liability.”
As COP30 begins, here's a gentle reminder that well-intentioned half measures aren't going to solve the climate crisis. The era of fossil fuels must come to an end. My latest in The Guardian... www.theguardian.com/commentisfre...
Net zero is an insidious loophole that distracts from the scientific imperative to eliminate fossil fuels | Joëlle Gergis
History tells us that polite incrementalism and political kowtowing will prevail at Cop30 – even as catastrophe unfolds around us
www.theguardian.com
November 7, 2025 at 8:21 AM
“Essentially we are adding more carbon debt to our planetary credit card, leaving future generations with an unpayable liability.”
Our new 🌊 paper “Progressive oxygenation of the North Atlantic Subpolar Gyre” is out @jgroceans.bsky.social (open access): agupubs.onlinelibrary.wiley.com/doi/10.1029/...
We examined the breathing of one of the ocean’s lungs 🩺 and found some surprises
Paper summary in schematic, more info ⬇️
1/🧵
We examined the breathing of one of the ocean’s lungs 🩺 and found some surprises
Paper summary in schematic, more info ⬇️
1/🧵
November 3, 2025 at 8:36 PM
Our new 🌊 paper “Progressive oxygenation of the North Atlantic Subpolar Gyre” is out @jgroceans.bsky.social (open access): agupubs.onlinelibrary.wiley.com/doi/10.1029/...
We examined the breathing of one of the ocean’s lungs 🩺 and found some surprises
Paper summary in schematic, more info ⬇️
1/🧵
We examined the breathing of one of the ocean’s lungs 🩺 and found some surprises
Paper summary in schematic, more info ⬇️
1/🧵
Reposted by Jannes Koelling
The subpolar North Atlantic is one region where the deep ocean is in direct contact with the atmosphere, making it a key site for ocean ventilation. Koelling et al., use a new data product to study North Atlantic ventilation in unprecedented detail 🌊
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
November 1, 2025 at 6:56 AM
The subpolar North Atlantic is one region where the deep ocean is in direct contact with the atmosphere, making it a key site for ocean ventilation. Koelling et al., use a new data product to study North Atlantic ventilation in unprecedented detail 🌊
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
🌊
Check out our new preprint! We explain the equatorial Pacific thermocline's temperature response to climate change using a smorgasbord of modeling simulations. eartharxiv.org/repository/v...
Explaining the Equatorial Pacific Thermocline Response to Climate Change with a Model Hierarchy
eartharxiv.org
October 30, 2025 at 8:41 PM
🌊
Reposted by Jannes Koelling
Seeking a three year postdoc in the field of ocean biogeochemistry and productivity using mechanistic models and synthesis of observations. Note the short fuse for applications. Please help distribute. All nationalities welcome to apply! 🌊
www.jobs.ac.uk/job/DPG117/p...
www.jobs.ac.uk/job/DPG117/p...
Postdoctoral Research Associate at University of Liverpool
Looking for a new job opportunity in academia? Check out this job opening for a Postdoctoral Research Associate on jobs.ac.uk!
www.jobs.ac.uk
October 29, 2025 at 5:38 PM
Seeking a three year postdoc in the field of ocean biogeochemistry and productivity using mechanistic models and synthesis of observations. Note the short fuse for applications. Please help distribute. All nationalities welcome to apply! 🌊
www.jobs.ac.uk/job/DPG117/p...
www.jobs.ac.uk/job/DPG117/p...
Reposted by Jannes Koelling
The AI industry wants us to believe AI superintelligence is the real threat from generative AI.
But that narrative was crafted to distract from the many ways genAI is being used to tear our societies apart, as we saw this week when a deepfake video rocked the Irish election. It must be reined in.
But that narrative was crafted to distract from the many ways genAI is being used to tear our societies apart, as we saw this week when a deepfake video rocked the Irish election. It must be reined in.
Generative AI is a societal disaster
Governments are deluding themselves into believing investment justifies allowing AI to upend society
disconnect.blog
October 24, 2025 at 10:12 AM
The AI industry wants us to believe AI superintelligence is the real threat from generative AI.
But that narrative was crafted to distract from the many ways genAI is being used to tear our societies apart, as we saw this week when a deepfake video rocked the Irish election. It must be reined in.
But that narrative was crafted to distract from the many ways genAI is being used to tear our societies apart, as we saw this week when a deepfake video rocked the Irish election. It must be reined in.
Reposted by Jannes Koelling
🌊 #Postdoc position available
📍 At WHOI with Dr. Le Bras
Analyse data from moored oxygen as part of the Overturning and Horizontal circulation of the Subpolar North Atlantic Program (GOHSNAP).
Requirements
✅ PhD in physical #oceanography
To apply: whoi.wd5.myworkdayjobs.com/en-US/WHOI-E...
📍 At WHOI with Dr. Le Bras
Analyse data from moored oxygen as part of the Overturning and Horizontal circulation of the Subpolar North Atlantic Program (GOHSNAP).
Requirements
✅ PhD in physical #oceanography
To apply: whoi.wd5.myworkdayjobs.com/en-US/WHOI-E...
Postdoctoral Investigator – Physical Oceanography
Job Summary The Woods Hole Oceanographic Institution (WHOI) invites applications for a Postdoctoral Investigator (PDI) in observational physical oceanography under the supervision of Dr. Isabela Le Br...
whoi.wd5.myworkdayjobs.com
October 23, 2025 at 4:16 PM
🌊 #Postdoc position available
📍 At WHOI with Dr. Le Bras
Analyse data from moored oxygen as part of the Overturning and Horizontal circulation of the Subpolar North Atlantic Program (GOHSNAP).
Requirements
✅ PhD in physical #oceanography
To apply: whoi.wd5.myworkdayjobs.com/en-US/WHOI-E...
📍 At WHOI with Dr. Le Bras
Analyse data from moored oxygen as part of the Overturning and Horizontal circulation of the Subpolar North Atlantic Program (GOHSNAP).
Requirements
✅ PhD in physical #oceanography
To apply: whoi.wd5.myworkdayjobs.com/en-US/WHOI-E...
Reposted by Jannes Koelling
This false assertion about the ocean producing 50% of the oxygen we breathe is so widespread that @jpgattuso.bsky.social @bopplaurent.bsky.social and others have written about it here.
Humans will always have oxygen to breathe, but we can’t say the same for ocean life
We are not at risk of running out of oxygen due to climate change, but ocean creatures are – and that will harm the whole planet.
theconversation.com
August 1, 2025 at 8:08 AM
This false assertion about the ocean producing 50% of the oxygen we breathe is so widespread that @jpgattuso.bsky.social @bopplaurent.bsky.social and others have written about it here.
Reposted by Jannes Koelling
We have a fully funded position for a PhD student to investigate the eddy exchange of lighter and denser waters in the Irminger Sea.
workingat.nioz.nl/o/phd-positi...
workingat.nioz.nl/o/phd-positi...
NIOZ - PhD-position "Overturning the ocean''
The department of Ocean Systems (OCS) at the Royal Netherlands Institute of Sea Research (NIOZ) is looking for an enthusiastic and motivated PhD candidate to work on the exchange of lighter and denser
workingat.nioz.nl
July 18, 2025 at 7:40 PM
We have a fully funded position for a PhD student to investigate the eddy exchange of lighter and denser waters in the Irminger Sea.
workingat.nioz.nl/o/phd-positi...
workingat.nioz.nl/o/phd-positi...
Reposted by Jannes Koelling
Behind many scientists is a lifetime of invisible, unsustainable costs. From unpaid internships to underpaid postdocs, the economic toll of a STEM career is staggering—and it's pushing talent out. My new perspective explores this crisis. #STEM #AcademicBlueSky journals.plos.org/plosbiology/...
Too poor to science: How wealth determines who succeeds in STEM
From student to researcher, a career in science can come with a high price tag. This Perspective explores how persistent financial barriers limit who can succeed in science, revealing how wealth shape...
journals.plos.org
June 24, 2025 at 6:14 PM
Behind many scientists is a lifetime of invisible, unsustainable costs. From unpaid internships to underpaid postdocs, the economic toll of a STEM career is staggering—and it's pushing talent out. My new perspective explores this crisis. #STEM #AcademicBlueSky journals.plos.org/plosbiology/...
www.nytimes.com/2025/04/24/c...
Oh good, let’s irreparably destroy even more ecosystems in the vague hopes that there will maybe be some economic benefit at some point
Oh good, let’s irreparably destroy even more ecosystems in the vague hopes that there will maybe be some economic benefit at some point
Trump Takes a Major Step Toward Seabed Mining in International Waters (Gift Article)
A new executive order pits the United States against the rest of the world over the question of who can exploit mineral resources in shared waters.
www.nytimes.com
April 25, 2025 at 1:32 AM
www.nytimes.com/2025/04/24/c...
Oh good, let’s irreparably destroy even more ecosystems in the vague hopes that there will maybe be some economic benefit at some point
Oh good, let’s irreparably destroy even more ecosystems in the vague hopes that there will maybe be some economic benefit at some point
Reposted by Jannes Koelling
🎙️ Dave Schlom, host of @npr.org's Blue Dot, chats with Scripps scientists Sophia Merrifield and Jamin Greenbaum about their research to understand our blue planet, and dives into Scripps history with Associate Director of Communications Rob Monroe. 🌊 Listen here! ⬇️ www.mynspr.org/show/blue-do...
Blue Dot: Ocean science at UC San Diego's Scripps Institution of Oceanography
Host Dave Schlom is joined by guests from the Scripps Institution of Oceanography at the University of San Diego to profile the ocean science being done at one of the world's most important and histor...
www.mynspr.org
April 11, 2025 at 7:28 PM
🎙️ Dave Schlom, host of @npr.org's Blue Dot, chats with Scripps scientists Sophia Merrifield and Jamin Greenbaum about their research to understand our blue planet, and dives into Scripps history with Associate Director of Communications Rob Monroe. 🌊 Listen here! ⬇️ www.mynspr.org/show/blue-do...
Reposted by Jannes Koelling
Not much attention is paid to the economics of deep-sea mining. It’s taken for granted that, whatever the ecological harms may be, the business case is sound.
Turns out that's not true. 🧪
Turns out that's not true. 🧪
The Dubious Economics of Deep-Sea Mining
Environment aside, is it just a bad investment?
nautil.us
April 1, 2025 at 10:27 PM
Not much attention is paid to the economics of deep-sea mining. It’s taken for granted that, whatever the ecological harms may be, the business case is sound.
Turns out that's not true. 🧪
Turns out that's not true. 🧪
Great opportunity for learning how to use Argo float data and/or meeting (and collaborating with) others that work with Argo!
GO-BGC is hosting a float data workshop this summer at the University of Washington - let us know if you'd be interested in joining!
@globaloceanbgc.bsky.social
@globaloceanbgc.bsky.social
GO-BGC Float Data Workshop – Interest Form | GO-BGC
www.go-bgc.org
January 15, 2025 at 2:32 AM
Great opportunity for learning how to use Argo float data and/or meeting (and collaborating with) others that work with Argo!
Reposted by Jannes Koelling
🌊 Have you ever wanted to measure oxygen on moored platforms in the ocean? If so, do it right by following the protocols we developed by working with over 60 oxygen optodes in the sub polar North Atlantic. NSF-funded with the most amazing team of scientists 🤩 and led by wonderful Dr. Una Miller!
Frontiers | Oxygen optodes on oceanographic moorings: recommendations for deployment and in situ calibration
Increasing interest in the deployment of optical oxygen sensors, or optodes, on oceanographic moorings reflects the value of dissolved oxygen (DO) measuremen...
www.frontiersin.org
December 23, 2024 at 4:33 PM
🌊 Have you ever wanted to measure oxygen on moored platforms in the ocean? If so, do it right by following the protocols we developed by working with over 60 oxygen optodes in the sub polar North Atlantic. NSF-funded with the most amazing team of scientists 🤩 and led by wonderful Dr. Una Miller!
Reposted by Jannes Koelling
If you’re at #agu24 and interested in ocean oxygen, ventilation, or the subpolar North Atlantic circulation (or all of the above), come check out my talk! It’s tomorrow (Thursday) at 8.55am in session OS41B: eppro01.ativ.me/appinfo.php?...
AGU24
eppro01.ativ.me
December 12, 2024 at 1:30 AM
If you’re at #agu24 and interested in ocean oxygen, ventilation, or the subpolar North Atlantic circulation (or all of the above), come check out my talk! It’s tomorrow (Thursday) at 8.55am in session OS41B: eppro01.ativ.me/appinfo.php?...
Hobbes would like to remind everyone that it’s important to take breaks from work
December 2, 2024 at 9:56 PM
Hobbes would like to remind everyone that it’s important to take breaks from work
Applications are now open for this year’s CICOES postdoc fellowship at UW/OSU/UAF: apply.interfolio.com/159461
Apply - Interfolio
{{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
apply.interfolio.com
November 27, 2024 at 10:46 PM
Applications are now open for this year’s CICOES postdoc fellowship at UW/OSU/UAF: apply.interfolio.com/159461
Check out our new preprint on ESS open archive!
doi.org/10.22541/ess...
doi.org/10.22541/ess...
Progressive oxygenation of the North Atlantic subpolar gyre
The subpolar North Atlantic (SPNA) is one of the few regions where the deep ocean is in direct contact with the atmosphere, making it a key location for interior ocean ventilation through gas exchange...
doi.org
October 28, 2024 at 4:08 PM
Check out our new preprint on ESS open archive!
doi.org/10.22541/ess...
doi.org/10.22541/ess...
