JB Sallée
@jbsallee.bsky.social
Ocean & Climate scientist. Lead author @IPCC_CH AR6. Chercheur au CNRS, Paris
Reposted by JB Sallée
#GEOL0022 all you ever wanted to know about the key role of the Southern Ocean in our climate system summarized in a great 5 minutes video by one of my students www.youtube.com/watch?v=f_zZ... Great work Billy Liu 👍.
See credits at the end for inspiration from @jbsallee.bsky.social and others...
See credits at the end for inspiration from @jbsallee.bsky.social and others...
The Southern Ocean
YouTube video by Xin Liu
www.youtube.com
October 26, 2025 at 8:59 AM
#GEOL0022 all you ever wanted to know about the key role of the Southern Ocean in our climate system summarized in a great 5 minutes video by one of my students www.youtube.com/watch?v=f_zZ... Great work Billy Liu 👍.
See credits at the end for inspiration from @jbsallee.bsky.social and others...
See credits at the end for inspiration from @jbsallee.bsky.social and others...
🚨PERMANENT POSITION OPENING🚨
A lecturer position is opening at LOCEAN on the topic: ‘Impact of climate change on marine ecosystems in the Southern Ocean’ (permanent position with the French Natural History Museum, for a researcher that will be based at LOCEAN, in the centre of Paris).
A lecturer position is opening at LOCEAN on the topic: ‘Impact of climate change on marine ecosystems in the Southern Ocean’ (permanent position with the French Natural History Museum, for a researcher that will be based at LOCEAN, in the centre of Paris).
October 16, 2025 at 12:52 PM
🚨PERMANENT POSITION OPENING🚨
A lecturer position is opening at LOCEAN on the topic: ‘Impact of climate change on marine ecosystems in the Southern Ocean’ (permanent position with the French Natural History Museum, for a researcher that will be based at LOCEAN, in the centre of Paris).
A lecturer position is opening at LOCEAN on the topic: ‘Impact of climate change on marine ecosystems in the Southern Ocean’ (permanent position with the French Natural History Museum, for a researcher that will be based at LOCEAN, in the centre of Paris).
Reposted by JB Sallée
Future atmospheric and ocean warming over the 21st century might be larger than previously expected based on a new study by @linusvogt.bsky.social
Linus & I developed the idea during Linus research visit with me at @whoi.edu and turned it then into this paper:
esd.copernicus.org/articles/16/...
Linus & I developed the idea during Linus research visit with me at @whoi.edu and turned it then into this paper:
esd.copernicus.org/articles/16/...
Increased future ocean heat uptake constrained by Antarctic sea ice extent
Abstract. The ocean takes up over 90 % of the excess heat stored in the Earth system as a result of anthropogenic climate change, which has led to sea level rise and an intensification of marine extre...
esd.copernicus.org
October 2, 2025 at 9:20 AM
Future atmospheric and ocean warming over the 21st century might be larger than previously expected based on a new study by @linusvogt.bsky.social
Linus & I developed the idea during Linus research visit with me at @whoi.edu and turned it then into this paper:
esd.copernicus.org/articles/16/...
Linus & I developed the idea during Linus research visit with me at @whoi.edu and turned it then into this paper:
esd.copernicus.org/articles/16/...
Reposted by JB Sallée
🚨🌊 New highlight paper out today in Earth System Dynamics!
We find an observational constraint implying more future global ocean heat uptake, cloud feedback, and warming than the CMIP6 mean.
This contrasts with previous estimates based on past warming trends.
🔗 esd.copernicus.org/articles/16/...
We find an observational constraint implying more future global ocean heat uptake, cloud feedback, and warming than the CMIP6 mean.
This contrasts with previous estimates based on past warming trends.
🔗 esd.copernicus.org/articles/16/...
Increased future ocean heat uptake constrained by Antarctic sea ice extent
Abstract. The ocean takes up over 90 % of the excess heat stored in the Earth system as a result of anthropogenic climate change, which has led to sea level rise and an intensification of marine extre...
esd.copernicus.org
October 2, 2025 at 10:49 AM
🚨🌊 New highlight paper out today in Earth System Dynamics!
We find an observational constraint implying more future global ocean heat uptake, cloud feedback, and warming than the CMIP6 mean.
This contrasts with previous estimates based on past warming trends.
🔗 esd.copernicus.org/articles/16/...
We find an observational constraint implying more future global ocean heat uptake, cloud feedback, and warming than the CMIP6 mean.
This contrasts with previous estimates based on past warming trends.
🔗 esd.copernicus.org/articles/16/...
Check out this very nice piece of work led by @linusvogt.bsky.social that untangles the processes controlling the efficiency of the world's ocean to capture climate change heat!
New paper alert! 🌊
What processes control the efficiency of ocean heat uptake under CO₂ forcing?
We show that Southern Ocean stratification and overturning are key, check out our publication in Ocean Science here:
doi.org/10.5194/os-2...
More details below 🧵👇
What processes control the efficiency of ocean heat uptake under CO₂ forcing?
We show that Southern Ocean stratification and overturning are key, check out our publication in Ocean Science here:
doi.org/10.5194/os-2...
More details below 🧵👇
Stratification and overturning circulation are intertwined controls on ocean heat uptake efficiency in climate models
Abstract. The global ocean takes up over 90 % of the excess heat added to the climate system due to anthropogenic emissions, thereby buffering climate change at Earth's surface. A key metric for quant...
doi.org
June 23, 2025 at 2:23 PM
Check out this very nice piece of work led by @linusvogt.bsky.social that untangles the processes controlling the efficiency of the world's ocean to capture climate change heat!
Reposted by JB Sallée
Maybe this @johncullenocean.bsky.social et al. piece where they said — "adding iron to the ocean is not an effective way to fight climate change, and we don't need further research to establish that" — wasn't straightforward enough because this idea just won't die. 🤷🏻♂️
www.nature.com/articles/461...
www.nature.com/articles/461...
May 30, 2025 at 8:04 AM
Maybe this @johncullenocean.bsky.social et al. piece where they said — "adding iron to the ocean is not an effective way to fight climate change, and we don't need further research to establish that" — wasn't straightforward enough because this idea just won't die. 🤷🏻♂️
www.nature.com/articles/461...
www.nature.com/articles/461...
Reposted by JB Sallée
🌊 The N.Atlantic has been experiencing extreme T°C in 2023. This situation raises a number of questions: Have we missed something? Do climate models allow us to understand such an event, or have we entered a new climate regime?
We attempted to answer these questions in this study:
rdcu.be/eh0e8
1/14
We attempted to answer these questions in this study:
rdcu.be/eh0e8
1/14
Internal variability effect doped by climate change drove the 2023 marine heat extreme in the North Atlantic
Communications Earth & Environment - The 2023 North Atlantic marine heatwave was driven by an extreme phase of internal atmospheric variability but would have been impossible without the doping...
rdcu.be
April 16, 2025 at 1:16 PM
🌊 The N.Atlantic has been experiencing extreme T°C in 2023. This situation raises a number of questions: Have we missed something? Do climate models allow us to understand such an event, or have we entered a new climate regime?
We attempted to answer these questions in this study:
rdcu.be/eh0e8
1/14
We attempted to answer these questions in this study:
rdcu.be/eh0e8
1/14
Reposted by JB Sallée
Bonjour,
Connaissez-vous le réseau de profileurs Argo?
C'est une clé de voûte de l'observation de l'océan.
www.argo-france.fr/Argo-France/...
1/...
Connaissez-vous le réseau de profileurs Argo?
C'est une clé de voûte de l'observation de l'océan.
www.argo-france.fr/Argo-France/...
1/...
March 13, 2025 at 11:55 AM
Bonjour,
Connaissez-vous le réseau de profileurs Argo?
C'est une clé de voûte de l'observation de l'océan.
www.argo-france.fr/Argo-France/...
1/...
Connaissez-vous le réseau de profileurs Argo?
C'est une clé de voûte de l'observation de l'océan.
www.argo-france.fr/Argo-France/...
1/...
Reposted by JB Sallée
We are at the end of the melt season in the #Antarctic (austral summer), which leaves most of the remaining sea ice across the Weddell Sea region. Here's a look at last month...
+ February ice comparison on my LinkedIn: www.linkedin.com/feed/update/...
+ Data available at nsidc.org/data/g02202/...
+ February ice comparison on my LinkedIn: www.linkedin.com/feed/update/...
+ Data available at nsidc.org/data/g02202/...
March 7, 2025 at 12:45 PM
We are at the end of the melt season in the #Antarctic (austral summer), which leaves most of the remaining sea ice across the Weddell Sea region. Here's a look at last month...
+ February ice comparison on my LinkedIn: www.linkedin.com/feed/update/...
+ Data available at nsidc.org/data/g02202/...
+ February ice comparison on my LinkedIn: www.linkedin.com/feed/update/...
+ Data available at nsidc.org/data/g02202/...
Reposted by JB Sallée
Hi - I'd like to share this story of what is happening at NOAA GFDL, where some of my colleagues and I worked until the mass firings at NOAA last week.
"...the birthplace of weather and climate forecasting"
"...the birthplace of weather and climate forecasting"
NOAA firings hit the birthplace of weather and climate forecasting
Dismissed researchers were improving severe weather predictions
www.science.org
March 5, 2025 at 1:16 AM
Hi - I'd like to share this story of what is happening at NOAA GFDL, where some of my colleagues and I worked until the mass firings at NOAA last week.
"...the birthplace of weather and climate forecasting"
"...the birthplace of weather and climate forecasting"
Reposted by JB Sallée
Scientists & experts: Add your name to this open letter calling on Congress and the Trump administration to ensure that NOAA and its sub-agencies remain fully funded and staffed, and that the independent, trusted science the agency produces is protected. act.ucsusa.org/4kajJuk
Science at Risk: Protect NOAA
Scientists & experts: Add your name to this open letter calling on Congress and the Trump administration to ensure that NOAA and its sub-agencies remain fully funded and staffed, and that the independ...
act.ucsusa.org
March 5, 2025 at 8:41 AM
Scientists & experts: Add your name to this open letter calling on Congress and the Trump administration to ensure that NOAA and its sub-agencies remain fully funded and staffed, and that the independent, trusted science the agency produces is protected. act.ucsusa.org/4kajJuk
🌊 🚨 Postdoc position alert 🚨 🌊
Optimizing Southern Ocean Carbon Sink Observations Using Autonomous Floats ( @bgc-argo.bsky.social )
Supervisors: JB Sallée ; Collaboration: H. Claustre ; P. Landschutzer ; E. McDonagh
Location: IPSL (LOCEAN), Paris, Fr
emploi.cnrs.fr/Offres/CDD/U...
Optimizing Southern Ocean Carbon Sink Observations Using Autonomous Floats ( @bgc-argo.bsky.social )
Supervisors: JB Sallée ; Collaboration: H. Claustre ; P. Landschutzer ; E. McDonagh
Location: IPSL (LOCEAN), Paris, Fr
emploi.cnrs.fr/Offres/CDD/U...
PostdocCNRM_Overturning
— 2-year Postoc opportunity — The Future Evolution of Global Ocean Overturning Cells at Different Global Warming Levels Deadline for application : 1 April 2025 Supervisors: Jean-Baptiste Sallée, Rola...
docs.google.com
March 4, 2025 at 8:43 AM
🌊 🚨 Postdoc position alert 🚨 🌊
Optimizing Southern Ocean Carbon Sink Observations Using Autonomous Floats ( @bgc-argo.bsky.social )
Supervisors: JB Sallée ; Collaboration: H. Claustre ; P. Landschutzer ; E. McDonagh
Location: IPSL (LOCEAN), Paris, Fr
emploi.cnrs.fr/Offres/CDD/U...
Optimizing Southern Ocean Carbon Sink Observations Using Autonomous Floats ( @bgc-argo.bsky.social )
Supervisors: JB Sallée ; Collaboration: H. Claustre ; P. Landschutzer ; E. McDonagh
Location: IPSL (LOCEAN), Paris, Fr
emploi.cnrs.fr/Offres/CDD/U...
🌊 🚨 Postdoc position alert 🚨 🌊
The Future Evolution of Global Ocean Overturning Cells at Different Global Warming Levels (2 years)
Deadline for application: 1 April 2025
Supervisors: Jean-Baptiste Sallée, Roland Séférian
Location: CNRM, Toulouse, France
More info: docs.google.com/document/d/1...
The Future Evolution of Global Ocean Overturning Cells at Different Global Warming Levels (2 years)
Deadline for application: 1 April 2025
Supervisors: Jean-Baptiste Sallée, Roland Séférian
Location: CNRM, Toulouse, France
More info: docs.google.com/document/d/1...
March 4, 2025 at 8:40 AM
🌊 🚨 Postdoc position alert 🚨 🌊
The Future Evolution of Global Ocean Overturning Cells at Different Global Warming Levels (2 years)
Deadline for application: 1 April 2025
Supervisors: Jean-Baptiste Sallée, Roland Séférian
Location: CNRM, Toulouse, France
More info: docs.google.com/document/d/1...
The Future Evolution of Global Ocean Overturning Cells at Different Global Warming Levels (2 years)
Deadline for application: 1 April 2025
Supervisors: Jean-Baptiste Sallée, Roland Séférian
Location: CNRM, Toulouse, France
More info: docs.google.com/document/d/1...
Reposted by JB Sallée
10 Stefan mentions in his blog that our study “does not change the assessment of the risk and impact of future AMOC changes in response to global warming”. After discussing this further, he confirmed that his view aligns with the IPCC’s medium confidence that the AMOC will not collapse before 2100.
February 28, 2025 at 1:49 PM
10 Stefan mentions in his blog that our study “does not change the assessment of the risk and impact of future AMOC changes in response to global warming”. After discussing this further, he confirmed that his view aligns with the IPCC’s medium confidence that the AMOC will not collapse before 2100.
Reposted by JB Sallée
Merci Tamara et Aude @audevalade.bsky.social pour vos efforts très appréciés !
www.lemonde.fr/sciences/art...
www.lemonde.fr/sciences/art...
« Nous appelons à l’organisation d’une convention nationale de l’éthique environnementale de la recherche »
TRIBUNE. Tamara Ben Ari et Aude Valade, chercheuses en écologie et agronomie, estiment que les initiatives existantes ne suffisent pas pour dessiner une recherche éthique, alignée avec les impératifs ...
www.lemonde.fr
January 29, 2025 at 3:36 PM
Merci Tamara et Aude @audevalade.bsky.social pour vos efforts très appréciés !
www.lemonde.fr/sciences/art...
www.lemonde.fr/sciences/art...
Reposted by JB Sallée
Reposted by JB Sallée
@glenpeters.bsky.social makes an important point here.
I often ready in 🌊 #mCDR papers: IPCC says we need #CDR to achieve our climate targets, as all scenarios that reach these goals include a certain level of CDR.
1/2
I often ready in 🌊 #mCDR papers: IPCC says we need #CDR to achieve our climate targets, as all scenarios that reach these goals include a certain level of CDR.
1/2
January 24, 2025 at 7:44 AM
@glenpeters.bsky.social makes an important point here.
I often ready in 🌊 #mCDR papers: IPCC says we need #CDR to achieve our climate targets, as all scenarios that reach these goals include a certain level of CDR.
1/2
I often ready in 🌊 #mCDR papers: IPCC says we need #CDR to achieve our climate targets, as all scenarios that reach these goals include a certain level of CDR.
1/2
Reposted by JB Sallée
Has the Atlantic Meridional Overturning Circulation (AMOC) weakened over the last decades? In our new study, we combine state-of-the-art CMIP6 models and observation-based estimates of the air-sea heat flux in the North Atlantic to show that the AMOC has not declined since the 1960s! 🌊
Atlantic overturning inferred from air-sea heat fluxes indicates no decline since the 1960s - Nature Communications
The AMOC is crucial for the global ocean overturning circulation and controls the climate around the North Atlantic. Here, the authors use 24 Earth System Models from the CMIP6 to demonstrate tha...
www.nature.com
January 15, 2025 at 10:11 AM
Has the Atlantic Meridional Overturning Circulation (AMOC) weakened over the last decades? In our new study, we combine state-of-the-art CMIP6 models and observation-based estimates of the air-sea heat flux in the North Atlantic to show that the AMOC has not declined since the 1960s! 🌊
Reposted by JB Sallée
What does the future hold for the Filchner-Ronne Ice Shelf?
@jbsallee.bsky.social, @elindarelius.bsky.social, & colleagues investigate in new #AGUPubs research.
eos.org/research-spo...
@jbsallee.bsky.social, @elindarelius.bsky.social, & colleagues investigate in new #AGUPubs research.
eos.org/research-spo...
Warm Seawater Encroaches on Major Antarctic Ice Shelf - Eos
In unprecedented detail, new research illuminates the seasonal flow of warm water toward the Filchner-Ronne Ice Shelf.
eos.org
January 8, 2025 at 2:29 PM
What does the future hold for the Filchner-Ronne Ice Shelf?
@jbsallee.bsky.social, @elindarelius.bsky.social, & colleagues investigate in new #AGUPubs research.
eos.org/research-spo...
@jbsallee.bsky.social, @elindarelius.bsky.social, & colleagues investigate in new #AGUPubs research.
eos.org/research-spo...
Reposted by JB Sallée
@oceanrics.bsky.social kicking off TRICUSO today
@noc.ac.uk, a new project that will develop technology & methods to address the #Carbon Sink Status of the #Southern #Ocean. Follow us for more information. #science #citizenscience @imocaglobeseries.bsky.social
@noc.ac.uk, a new project that will develop technology & methods to address the #Carbon Sink Status of the #Southern #Ocean. Follow us for more information. #science #citizenscience @imocaglobeseries.bsky.social
January 7, 2025 at 11:44 AM
@oceanrics.bsky.social kicking off TRICUSO today
@noc.ac.uk, a new project that will develop technology & methods to address the #Carbon Sink Status of the #Southern #Ocean. Follow us for more information. #science #citizenscience @imocaglobeseries.bsky.social
@noc.ac.uk, a new project that will develop technology & methods to address the #Carbon Sink Status of the #Southern #Ocean. Follow us for more information. #science #citizenscience @imocaglobeseries.bsky.social
Reposted by JB Sallée
Here is another #Bluesky starter pack with scientists who were involved in the @ipcc.bsky.social #AR6 reports (with a likely WGI bias). Please let me know if I missed you!
go.bsky.app/Erpq9Sq
@valmasdel.bsky.social @edhawkins.org @glenpeters.bsky.social @lisaschipper.bsky.social
go.bsky.app/Erpq9Sq
@valmasdel.bsky.social @edhawkins.org @glenpeters.bsky.social @lisaschipper.bsky.social
November 12, 2024 at 10:55 PM
Here is another #Bluesky starter pack with scientists who were involved in the @ipcc.bsky.social #AR6 reports (with a likely WGI bias). Please let me know if I missed you!
go.bsky.app/Erpq9Sq
@valmasdel.bsky.social @edhawkins.org @glenpeters.bsky.social @lisaschipper.bsky.social
go.bsky.app/Erpq9Sq
@valmasdel.bsky.social @edhawkins.org @glenpeters.bsky.social @lisaschipper.bsky.social
Reposted by JB Sallée
A visual illustration of the case for geological net zero.
November 23, 2024 at 11:14 AM
A visual illustration of the case for geological net zero.
🚨Exciting Postdoctoral Opportunities in Oceanography 🌊 at CNRM Climate Center, Toulouse 🚨
We are seeking two highly motivated postdoctoral researchers to join us for 2 two-year positions!
We are seeking two highly motivated postdoctoral researchers to join us for 2 two-year positions!
November 21, 2024 at 9:13 AM
🚨Exciting Postdoctoral Opportunities in Oceanography 🌊 at CNRM Climate Center, Toulouse 🚨
We are seeking two highly motivated postdoctoral researchers to join us for 2 two-year positions!
We are seeking two highly motivated postdoctoral researchers to join us for 2 two-year positions!