John J. Cullen
@johncullenocean.bsky.social
Professor Emeritus in Oceanography, Dalhousie University. 🇨🇦🧪🌊 I've spent a long time trying to understand and explain how the ocean works.
Reposted by John J. Cullen
Her sister wrote my favorite essay about her. She points out that RF would have been famous even if she'd never looked at DNA
www.thelancet.com/journals/lan...
www.thelancet.com/journals/lan...
Remembering my sister Rosalind Franklin
Rosalind Franklin died of ovarian cancer in 1958 aged 37 years. Sympathy and feminism
have combined to give us her familiar image as a downtrodden woman scientist, brilliant
but neglected, a heroine t...
www.thelancet.com
November 7, 2025 at 11:20 PM
Her sister wrote my favorite essay about her. She points out that RF would have been famous even if she'd never looked at DNA
www.thelancet.com/journals/lan...
www.thelancet.com/journals/lan...
🌊 Post from Jay Cullen took me to the PNAS article on oyster farming as mCDR. Seems that farmed oyster biomass is counted as sequestered carbon for climate change mitigation. No mention of what happens to oyster carbon after we eat it. Maybe I read it wrong.
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
September 17, 2025 at 4:52 PM
🌊 Post from Jay Cullen took me to the PNAS article on oyster farming as mCDR. Seems that farmed oyster biomass is counted as sequestered carbon for climate change mitigation. No mention of what happens to oyster carbon after we eat it. Maybe I read it wrong.
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
If due-diligence of mCDR investors included solid engagement with expert ocean scientists like Hurd and others – who have years of experience and publish peer-reviewed research – the cycle of hype and waste might be replaced with a better path to solutions.
🌊
www.canarymedia.com/articles/car...
🌊
www.canarymedia.com/articles/car...
May 30, 2025 at 5:34 PM
If due-diligence of mCDR investors included solid engagement with expert ocean scientists like Hurd and others – who have years of experience and publish peer-reviewed research – the cycle of hype and waste might be replaced with a better path to solutions.
🌊
www.canarymedia.com/articles/car...
🌊
www.canarymedia.com/articles/car...
The arguments about uncertain global effects and limited efficacy have been supported by others for years.
One more thing: if harmful blooms or hypoxic fish kills happen anywhere that is influenced by OIF, legal fingers will point, deservedly or not.
Who will underwrite liability insurance?
🌊
One more thing: if harmful blooms or hypoxic fish kills happen anywhere that is influenced by OIF, legal fingers will point, deservedly or not.
Who will underwrite liability insurance?
🌊
May 30, 2025 at 5:00 PM
The arguments about uncertain global effects and limited efficacy have been supported by others for years.
One more thing: if harmful blooms or hypoxic fish kills happen anywhere that is influenced by OIF, legal fingers will point, deservedly or not.
Who will underwrite liability insurance?
🌊
One more thing: if harmful blooms or hypoxic fish kills happen anywhere that is influenced by OIF, legal fingers will point, deservedly or not.
Who will underwrite liability insurance?
🌊
Reposted by John J. Cullen
The US does not stand for freedom and democracy any more, but is sliding fast into tyranny. Harvard is punished for standing up to this.
If you’re in the US and not doing something now, soon you will be unable to do anything.
We know this from experience here in Germany.
If you’re in the US and not doing something now, soon you will be unable to do anything.
We know this from experience here in Germany.
Trump just revoked the ability for foreign students to enroll at Harvard. Every foreign student, which is in the thousands, enrolled for next year at Harvard will not be able to continue studying if this isn't challenged in court.
www.nytimes.com/2025/05/22/u...
www.nytimes.com/2025/05/22/u...
Trump Administration Halts Harvard’s Ability to Enroll International Students
www.nytimes.com
May 23, 2025 at 4:59 AM
The US does not stand for freedom and democracy any more, but is sliding fast into tyranny. Harvard is punished for standing up to this.
If you’re in the US and not doing something now, soon you will be unable to do anything.
We know this from experience here in Germany.
If you’re in the US and not doing something now, soon you will be unable to do anything.
We know this from experience here in Germany.
Congratulations to Philip Boyd FRS!
FYI, he is a leading expert on marine CDR. His publications have revealed what we know, what we don’t, and what we must learn and do before proceeding with ocean manipulations.
Essential science that can cut through hype.
🌊🧪
www.utas.edu.au/about/news-a...
FYI, he is a leading expert on marine CDR. His publications have revealed what we know, what we don’t, and what we must learn and do before proceeding with ocean manipulations.
Essential science that can cut through hype.
🌊🧪
www.utas.edu.au/about/news-a...
Carbon, climate, and a Royal honour: Professor Boyd recognised for ocean science leadership
www.utas.edu.au
May 22, 2025 at 4:50 PM
Congratulations to Philip Boyd FRS!
FYI, he is a leading expert on marine CDR. His publications have revealed what we know, what we don’t, and what we must learn and do before proceeding with ocean manipulations.
Essential science that can cut through hype.
🌊🧪
www.utas.edu.au/about/news-a...
FYI, he is a leading expert on marine CDR. His publications have revealed what we know, what we don’t, and what we must learn and do before proceeding with ocean manipulations.
Essential science that can cut through hype.
🌊🧪
www.utas.edu.au/about/news-a...
Reposted by John J. Cullen
Does this scare you like it scares me? www.fda.gov/news-events/...
FDA Announces Completion of First AI-Assisted Scientific Review Pilot and Aggressive Agency-Wide AI Rollout Timeline
FDA announced an aggressive timeline to scale AI across all centers by June 30.
www.fda.gov
May 9, 2025 at 1:24 AM
Does this scare you like it scares me? www.fda.gov/news-events/...
Reposted by John J. Cullen
👿 NSF in Turmoil: Radical Reorganization, Removal of Directors, Forced Layoffs
🧪
Follows take over by DOGE
#SaveNSF
science.org
🧪
Follows take over by DOGE
#SaveNSF
science.org
🚨 Breaking: NSF faces radical shake-up as officials abolish its 37 divisions
1️⃣ Removes/demotes division director leaders
2️⃣ Forced layoff notices to NSF staff going out tonight
3️⃣ More grant terminations expected tomorrow
One glimmer of hope: the 8 directorates appear to be staying
1️⃣ Removes/demotes division director leaders
2️⃣ Forced layoff notices to NSF staff going out tonight
3️⃣ More grant terminations expected tomorrow
One glimmer of hope: the 8 directorates appear to be staying
Exclusive: NSF faces radical shake-up as officials abolish its 37 divisions
Changes seen as a response to presidential directives on what research to fund
www.science.org
May 9, 2025 at 2:29 AM
👿 NSF in Turmoil: Radical Reorganization, Removal of Directors, Forced Layoffs
🧪
Follows take over by DOGE
#SaveNSF
science.org
🧪
Follows take over by DOGE
#SaveNSF
science.org
Reposted by John J. Cullen
🔔BREAKING🔔
The NSF has frozen all research grant awards—cutting off life-saving science midstream and demanding ideological screenings for future funding.
This is censorship disguised as oversight.
Here’s how you can help us spread the word ➡️🧵(1/3):
www.nature.com/articles/d41...
The NSF has frozen all research grant awards—cutting off life-saving science midstream and demanding ideological screenings for future funding.
This is censorship disguised as oversight.
Here’s how you can help us spread the word ➡️🧵(1/3):
www.nature.com/articles/d41...
Exclusive: NSF stops awarding new grants and funding existing ones
US science funder also plans to screen grant applications for compliance with ‘agency priorities’.
www.nature.com
May 2, 2025 at 1:31 AM
🔔BREAKING🔔
The NSF has frozen all research grant awards—cutting off life-saving science midstream and demanding ideological screenings for future funding.
This is censorship disguised as oversight.
Here’s how you can help us spread the word ➡️🧵(1/3):
www.nature.com/articles/d41...
The NSF has frozen all research grant awards—cutting off life-saving science midstream and demanding ideological screenings for future funding.
This is censorship disguised as oversight.
Here’s how you can help us spread the word ➡️🧵(1/3):
www.nature.com/articles/d41...
Reposted by John J. Cullen
I was in the process of hiring a postdoc, so this severely affects her career because now she has to look for something else. It also means I can't pay my existing people, can't buy supplies for the lab, and can't travel. Every NSF-funded researcher will be in the same boat soon.
May 2, 2025 at 8:29 AM
I was in the process of hiring a postdoc, so this severely affects her career because now she has to look for something else. It also means I can't pay my existing people, can't buy supplies for the lab, and can't travel. Every NSF-funded researcher will be in the same boat soon.
Delighted to see that Scott Doney has been honored with election to the NAS. His research represents truly interdisciplinary oceanography at its best, he has been a standout in public service, and (dare we say this about scientists?) he is a model of generosity and kindness.
Congrats, Scott! 🌊🧪
Congrats, Scott! 🌊🧪
Huge thanks to the many teachers, mentors, colleagues, postdocs & students who have supported my science career
#UVA @usocb.bsky.social @whoi.edu @ncar-ucar.bsky.social @ucsandiego.bsky.social @sea1971.bsky.social @nasagoddard.bsky.social
www.nasonline.org/news/2025-na...
#UVA @usocb.bsky.social @whoi.edu @ncar-ucar.bsky.social @ucsandiego.bsky.social @sea1971.bsky.social @nasagoddard.bsky.social
www.nasonline.org/news/2025-na...
National Academy of Sciences Elects Members and International Members - NAS
WASHINGTON — The National Academy of Sciences announced today the election of 120 members and 30 international members in recognition of their distinguished and continuing achievements in original res...
www.nasonline.org
April 30, 2025 at 1:30 PM
Delighted to see that Scott Doney has been honored with election to the NAS. His research represents truly interdisciplinary oceanography at its best, he has been a standout in public service, and (dare we say this about scientists?) he is a model of generosity and kindness.
Congrats, Scott! 🌊🧪
Congrats, Scott! 🌊🧪
Reposted by John J. Cullen
Reposted by John J. Cullen
Many data sets held by NOAA are being "retired" in may, including datasets relevant to ocean sciences and climate. If you have need for these data, or are an archivist, it would be good to download this now. PLEASE SHARE WIDELY. www.nesdis.noaa.gov/about/docume...
Notice of Changes
Notices of changes are formal public announcements of planned services changes to applications and other products.
www.nesdis.noaa.gov
April 18, 2025 at 8:25 PM
Many data sets held by NOAA are being "retired" in may, including datasets relevant to ocean sciences and climate. If you have need for these data, or are an archivist, it would be good to download this now. PLEASE SHARE WIDELY. www.nesdis.noaa.gov/about/docume...
Reposted by John J. Cullen
The Act prohibits actions that “harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect” endangered species. Right now, “harm” includes damage to a species’ habitat—but the Trump administration is attempting to strip habitat destruction from that definition.
April 18, 2025 at 1:26 PM
The Act prohibits actions that “harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect” endangered species. Right now, “harm” includes damage to a species’ habitat—but the Trump administration is attempting to strip habitat destruction from that definition.
Reposted by John J. Cullen
NOAA just announced a long list of datasets that are going away🧪⚒️🌊: www.nesdis.noaa.gov/about/docume...
Download what you need asap and send comments to: [email protected]
Download what you need asap and send comments to: [email protected]
Notice of Changes
Notices of changes are formal public announcements of planned services changes to applications and other products.
www.nesdis.noaa.gov
April 17, 2025 at 12:44 AM
NOAA just announced a long list of datasets that are going away🧪⚒️🌊: www.nesdis.noaa.gov/about/docume...
Download what you need asap and send comments to: [email protected]
Download what you need asap and send comments to: [email protected]
Reposted by John J. Cullen
This administration continues to outdo itself by doing really really dumb things. Princeton has one of the best climate modeling groups in the world, and this administration just cut their funding justified with some anti-science bs.
Ending Cooperative Agreements’ Funding to Princeton University
On Tuesday, April 8, 2025, U.S. Secretary of Commerce Howard Lutnick announced that nearly $4 million in funding is ending to Princeton University after a detailed, careful, and thorough review of the...
www.commerce.gov
April 9, 2025 at 12:55 AM
This administration continues to outdo itself by doing really really dumb things. Princeton has one of the best climate modeling groups in the world, and this administration just cut their funding justified with some anti-science bs.
Reposted by John J. Cullen
Those critical International Maritime Organisation discussions on a pathway to greener shipping just had a major bombshell dropped on them:
www.lloydslist.com/LL1153123/La...
This is a rare opportunity to make real progress. They don’t need unanimous agreement, but the threats could change minds.
www.lloydslist.com/LL1153123/La...
This is a rare opportunity to make real progress. They don’t need unanimous agreement, but the threats could change minds.
Last minute US intervention at IMO threatens to derail climate negotiations
The US has dropped a diplomatic bombshell on the pivotal international talks due to agree shipping’s decarbonisation regulatory measures. The threat of action against member states agreeing to a deal has the potential to derail talks
www.lloydslist.com
April 9, 2025 at 10:34 AM
Those critical International Maritime Organisation discussions on a pathway to greener shipping just had a major bombshell dropped on them:
www.lloydslist.com/LL1153123/La...
This is a rare opportunity to make real progress. They don’t need unanimous agreement, but the threats could change minds.
www.lloydslist.com/LL1153123/La...
This is a rare opportunity to make real progress. They don’t need unanimous agreement, but the threats could change minds.
Reposted by John J. Cullen
The election has just been called for April 28.
If you are a Canadian living outside the country, get your mail-in ballot here ASAP:
travel.gc.ca/travelling/l...
If you are a Canadian living outside the country, get your mail-in ballot here ASAP:
travel.gc.ca/travelling/l...
Canada election live: Canadian PM Mark Carney calls snap election
Carney has asked the governor general to dissolve Parliament, launching an election campaign amid a trade war with the US.
www.bbc.com
March 23, 2025 at 4:54 PM
The election has just been called for April 28.
If you are a Canadian living outside the country, get your mail-in ballot here ASAP:
travel.gc.ca/travelling/l...
If you are a Canadian living outside the country, get your mail-in ballot here ASAP:
travel.gc.ca/travelling/l...
Reposted by John J. Cullen
As we watch Trump's attack on universities, remember that Poilievre promises to appoint a "Free Speech Guardian" for universities.
A university could lose its federal funding if this politically appointed "guardian" recommends it.
A university could lose its federal funding if this politically appointed "guardian" recommends it.
March 22, 2025 at 2:45 PM
As we watch Trump's attack on universities, remember that Poilievre promises to appoint a "Free Speech Guardian" for universities.
A university could lose its federal funding if this politically appointed "guardian" recommends it.
A university could lose its federal funding if this politically appointed "guardian" recommends it.
Reposted by John J. Cullen
This is bananas.
'Canadian researchers are asked to confirm that their research:
- does not include a climate or “environmental justice” component
- does not contain diversity, equity and inclusion (DEI) elements
- does not ascribe to “gender ideology'
🧪 🌎
www.globenewswire.com/news-release...
'Canadian researchers are asked to confirm that their research:
- does not include a climate or “environmental justice” component
- does not contain diversity, equity and inclusion (DEI) elements
- does not ascribe to “gender ideology'
🧪 🌎
www.globenewswire.com/news-release...
Trump administration threatening Canadian researchers
OTTAWA, Ontario, March 18, 2025 (GLOBE NEWSWIRE) -- The Canadian Association of University Teachers (CAUT) is warning that the Trump administration is...
www.globenewswire.com
March 18, 2025 at 8:43 PM
This is bananas.
'Canadian researchers are asked to confirm that their research:
- does not include a climate or “environmental justice” component
- does not contain diversity, equity and inclusion (DEI) elements
- does not ascribe to “gender ideology'
🧪 🌎
www.globenewswire.com/news-release...
'Canadian researchers are asked to confirm that their research:
- does not include a climate or “environmental justice” component
- does not contain diversity, equity and inclusion (DEI) elements
- does not ascribe to “gender ideology'
🧪 🌎
www.globenewswire.com/news-release...
Got potash? 🇨🇦
We've been hearing a lot about potash lately — the massive Canadian export in the eye of the U.S. tariff storm. Wondering what it is? We've got you covered: thenarwhal.ca/potash-us-ta...
What is potash? A Canadian export at centre of U.S. tariffs | The Narwhal
Everything you need to know about potash as Canada - U.S. tariff talks put this critical mineral big in Saskatchewan in focus
thenarwhal.ca
March 8, 2025 at 12:42 PM
Got potash? 🇨🇦
Reposted by John J. Cullen
If this looks old it's because it's been up there a while.
March 7, 2025 at 9:45 PM
If this looks old it's because it's been up there a while.
Reposted by John J. Cullen
This is fascinating. Give it a read!
In 1890, the Tariff Act came into place in the United States. It placed tariffs on imports of up to 50%.
While touted as a way to build American industry, there was also the hope it would force an annexation of Canada. It backfired.
Let's learn more.
🧵1/10
While touted as a way to build American industry, there was also the hope it would force an annexation of Canada. It backfired.
Let's learn more.
🧵1/10
March 6, 2025 at 4:45 AM
This is fascinating. Give it a read!
Tommy Dickey (1945-2025). When he started out, oceanography was pursued in disciplinary silos, bio-optical oceanography did not exist, and robotic observation of global ocean biogeochemistry was not yet a dream. Tommy was central in getting us where we are today.🌊
www.geog.ucsb.edu/people/facul...
www.geog.ucsb.edu/people/facul...
Tommy Dickey | Department of Geography | UC Santa Barbara
Interdisciplinary ocean research topics have included: bio-optics, biogeochemistry, hurricanes, ocean eddies, and monsoons plus medical research concerning the use of scent detection dogs for COVID-19...
www.geog.ucsb.edu
February 26, 2025 at 7:27 PM
Tommy Dickey (1945-2025). When he started out, oceanography was pursued in disciplinary silos, bio-optical oceanography did not exist, and robotic observation of global ocean biogeochemistry was not yet a dream. Tommy was central in getting us where we are today.🌊
www.geog.ucsb.edu/people/facul...
www.geog.ucsb.edu/people/facul...
First Ocean Sciences Meeting outside the US is a big deal.
As a bonus, no state-sponsored suppression of climate science.
Neaps and tatties, too!
May the force be with you, @aslo.org, @tosoceanography.bsky.social, @agu.org. 🌊🧪
As a bonus, no state-sponsored suppression of climate science.
Neaps and tatties, too!
May the force be with you, @aslo.org, @tosoceanography.bsky.social, @agu.org. 🌊🧪
Save the date! The Ocean Sciences Meeting is coming to Glasgow, Scotland, 22-27 Feb 2026—the first OSM outside the US! 🌍 Join scientists, students, journalists, & more to grow our global ocean community, foster partnerships & build a sustainable future. #OSM26 @agu.org @tosoceanography.bsky.social
February 25, 2025 at 5:23 PM
First Ocean Sciences Meeting outside the US is a big deal.
As a bonus, no state-sponsored suppression of climate science.
Neaps and tatties, too!
May the force be with you, @aslo.org, @tosoceanography.bsky.social, @agu.org. 🌊🧪
As a bonus, no state-sponsored suppression of climate science.
Neaps and tatties, too!
May the force be with you, @aslo.org, @tosoceanography.bsky.social, @agu.org. 🌊🧪