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jpgattuso.bsky.social
Jean-Pierre Gattuso
@jpgattuso.bsky.social
3.2K followers 420 following 180 posts

Senior Research Scientist at CNRS, Sorbonne University and Iddri @cnrs.bsky.social @iddri.bsky.social 🌊 Ocean, climate, Ocean-based solutions — https://jpgattuso.github.io

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Jean-Pierre Gattuso is a French ocean scientist conducting research globally, from the pole to the tropics and from nearshore to the open ocean. His research addresses the biology of reef-building corals, the biogeochemistry of coastal ecosystems, and the response of marine plants, animals and ecosystems to global environmental change. He is also interested in transdisciplinary research, collaborating with social scientists to address ocean-based solutions to minimize climate change and its impacts. He is currently a CNRS Research Professor at Sorbonne University. .. more

Environmental science 48%
Geology 22%
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Mar 14
‼️ Check out our new paper led by Nicolas Metzl on "An updated synthesis of ocean total alkalinity and dissolved inorganic carbon measurements from 1993 to 2023: the SNAPO-CO2-v2 dataset". 🌊
First page of the paper including the abstract Locations of new AT and CT data (2005–2023) in the global ocean and the western Mediterranean Sea (white box, inset) in the SNAPO-CO2-v2 dataset. Color code is for year. Figure produced with ODV (Schlitzer, 2018).
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · 4d
Let us express our solidarity with US colleagues affected by the federal shutdown and firings.
#shutdown

fromtheprow.agu.org/agu-condemns...
AGU Condemns Threatened Mass Firings of U.S. Federal Workforce During Shutdown
I write to you today outraged on behalf of everyone who depends on a functioning government. Last Wednesday, the U.S...
fromtheprow.agu.org
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · 7d
‼️ Check out our new paper on "Ocean Science Meets Diplomacy: Contribution of the One Ocean Science Congress to the Third United Nations Ocean Conference".

🌊 #OOSC #UNOC #Ocean #Diplomacy @cnrs.fr @sorbonne-universite.fr @iddri.bsky.social
doi.org/10.1002/lob....
Ocean Science Meets Diplomacy: Contribution of the One Ocean Science Congress to the Third United Nations Ocean Conference
This paper reviews the outcomes of the One Ocean Science Congress (OOSC) and its strategic alignment with the Third United Nations Ocean Conference (UNOC3) as a case study in ocean science diplomacy.....
doi.org
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · 7d
🌊
jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · 7d
"UN politics won’t deliver an ambitious plastics treaty"
#plastic #pollution
www.science.org/doi/10.1126/...
UN politics won’t deliver an ambitious plastics treaty
Negotiators again failed to finalize the text for a global plastics treaty in Geneva in August 2025. The talks exposed two harsh truths. Consensus on the treaty text, where no state formally objects, ...
www.science.org

jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · 7d
"UN politics won’t deliver an ambitious plastics treaty"
#plastic #pollution
www.science.org/doi/10.1126/...
UN politics won’t deliver an ambitious plastics treaty
Negotiators again failed to finalize the text for a global plastics treaty in Geneva in August 2025. The talks exposed two harsh truths. Consensus on the treaty text, where no state formally objects, ...
www.science.org
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Aug 27
A disaster for ocean and climate research is unfolding before our eyes. #NOAA 🌊
"The White House Office of Management and Budget is pulling back $239 million in funds Congress already provided. The biggest hits fall on climate and ocean research."
oceanpolicy.substack.com/p/roundup-un...
Roundup: Unobligated but Not Unnoticed: OMB Pulls Back NOAA Funds
August 12-26, 2025
oceanpolicy.substack.com
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Aug 16
Pour être précis, ce sont les doctorants du PPR ocean climat qui ont préparé un manifeste.

www.ocean-climat.fr/Les-actions-...
Manifeste - Génération PPR Océan & Climat
A l’occasion de la 3ème conférence des Nations Unies sur les Océans, les doctorants du Programme Prioritaire de Recherche Océan & Climat expriment leurs attentes et leur vision pour les sciences o...
www.ocean-climat.fr
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Aug 16
It would be great if @oceana.bsky.social could avoid propagating scientifically inaccurate statements.
🌊 #oxygen

theconversation.com/humans-will-...
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Aug 14
A thoughtful Op-ed has just been published in @bangordailynews.bsky.social. Prof. Shick of @umaine.bsky.social highlights the One Ocean Science Congress (#OOSC), the Third United Nations Ocean Conference (#UNOC), their interconnections, and US involvement.

www.bangordailynews.com/2025/08/13/o...
Opinion: US loses credibility for rejection of international declaration to protect our ocean
"The dearth of U.S. federal scientists was especially unfortunate because they have long led the research behind the issues under consideration."
www.bangordailynews.com
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Reposted by Jean‐Pierre Gattuso

oceanhelen.bsky.social
Prof Helen Bostock @oceanhelen.bsky.social · Aug 1
The Australian 🇦🇺 climate change Authority just released a report on the climate threats to the Great Barrier Reef. 🪸 I hope the Aus Govt is listening. 70-90% will be gone at 1.5-2c warming. 🌊 #climateactionnow if we care about the Australian coral reefs - GBR, Ningaloo and the southern reef.
www.climatechangeauthority.gov.au
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Reposted by Jean‐Pierre Gattuso, Fabrice Ardhuin, Nepal

davidho.bsky.social
David Ho @davidho.bsky.social · Aug 1
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
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jul 29
Congress Rejects Trump Administration’s Cuts to #NOAA

Both House and Senate reject the Trump Administration’s push to eliminate NOAA’s Office of Oceanic and Atmospheric Research (OAR) along with several longstanding and popular programs 🌊

www.espadvisor.com/post/congres...
Congress Pushes Back on Trump’s NOAA Cuts But Stormy Seas Loom
Congress is rejecting the harshest proposed cuts to NOAA—but big decisions still loom. With the September 30 deadline fast approaching, funding battles and policy shifts could reshape the agency’s fut...
www.espadvisor.com
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jul 28
🌊 Merci @imev-mer.fr ! Je dois remercier de nombreuses personnes — famille, collègues, étudiants — qui ont compté sur ce parcours et à qui je dois beaucoup.
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Reposted by Jean‐Pierre Gattuso

absolutspacegrl.bsky.social
Holly 🥄 @absolutspacegrl.bsky.social · Jul 28
I honestly don’t know how we ever recover from this loss of institutional knowledge. There’s no reason to do this…we learn nothing from history.

Tomorrow I will go to work and train those who come after me as best I can, like always, because I truly love NASA #nasa 🧪🔭🚀🛰️

www.npr.org/2025/07/26/n...
Nearly 4,000 NASA employees opt to leave agency through deferred resignation program
The employees who have chosen to leave the agency amount to about 20% of NASA's workforce.
www.npr.org
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jul 26
« The Manmade Clouds That Could Help Save the Great Barrier Reef: Inside a bold — and controversial — effort to cool the water around this beloved ecosystem. »
#SRM #CoralReefs 🌊

www.nytimes.com/2025/07/25/m...
The Manmade Clouds That Could Help Save the Great Barrier Reef
www.nytimes.com
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Reposted by Jean‐Pierre Gattuso

bachlennart.bsky.social
Lennart Bach @bachlennart.bsky.social · Mar 24
Postdoc position available studying the biological carbon pump within Jan Taucher's team at GEOMAR
🌊

www.geomar.de/en/karriere/...
Postdoc (m/f/d) position in ocean biogeochemistry
www.geomar.de
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Reposted by Jean‐Pierre Gattuso

cnrscotedazur.bsky.social
CNRS Côte d'Azur @cnrscotedazur.bsky.social · Apr 8
✌ 2 reportages de laboratoires @cnrs.fr dans 1 seule émission, merci France 3 Côte d'Azur !

📐 @mathemarium.bsky.social @ljad-off.bsky.social @marcmonticelli.bsky.social @cnrs-insmi.bsky.social
🌊 @imev-mer.fr @jpgattuso.bsky.social

🎥 france3-regions.francetvinfo.fr/provence-alp...
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Reposted by Jean‐Pierre Gattuso

co2ley.bsky.social
Sarah Cooley @co2ley.bsky.social · Apr 30
🌊 Great big congratulations to @scottdoney.bsky.social as he is elected into the National Academy of Sciences! Scott has been a key mentor for me and so many others, teaching us to always ask hard questions and see through flimsy science. 👏
scottdoney.bsky.social
Scott Doney @scottdoney.bsky.social · Apr 29
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...
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
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jul 11
‼️Check out our new paper on #climate change risks in the #Mediterranean Sea led by Abed El Rahman Hassoun. 🌊
wolfgangcramer.net
Wolfgang Cramer @wolfgangcramer.net · Jul 11
Just out: "Climate change risks on key open marine and coastal mediterranean ecosystems" rdcu.be/evGGx

@jpgattuso.bsky.social www.medecc.org

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title, authors and abstract of the paper Climate change risks on key open marine and coastal mediterranean ecosystems Abed El Rahman Hassoun1, Meryem Mojtahid, Mohammad Merheb, Piero Lionello, Jean-Pierre Gattuso & Wolfgang Cramer Mediterranean open marine and coastal ecosystems face multiple risks that impact their unique biodiversity, with climate change representing a major ongoing threat. While these ecosystems are also under pressure from non-climatic anthropogenic drivers (e.g., overfishing, pollution), this study primarily focuses on risks related to climate change. To assess these risks and evaluate their confidence levels, we adopt the scenario-based approach of the Intergovernmental Panel on Climate Change (IPCC), relying on a review of literature projecting changes in Mediterranean Sea ecosystems. The main drivers of environmental change are sea level rise, ocean warming and acidification. Similar to global conditions, all Mediterranean ecosystems face high risks under all climate scenarios, with coastal ecosystems being more strongly impacted than open marine ecosystems. For these coastal ecosystems, risk levels are expected to become very high already once global warming exceeds 0.8 °C with respect to the 1976–2005 period. A few Mediterranean ecosystems (e.g., coralligenous and rocky coasts) are relatively more resilient compared to others, probably because of their long evolutionary history and the presence of a variety of climatic and hydrological conditions. However, high-emission scenarios in specific sub-basins, in addition to acidification impacts, could reduce this resilience, decreasing both habitat extent and ecosystem function dramatically. Overall, due to the higher observed and projected rates of climate change in the Mediterranean, compared to global trends, for variables such as seawater temperature and pH, marine ecosystems (particularly coastal) are projected to be under higher risks compared to the global ocean.
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Reposted by Jean‐Pierre Gattuso, Graeme S. Cumming

wolfgangcramer.net
Wolfgang Cramer @wolfgangcramer.net · Jul 11
Just out: "Climate change risks on key open marine and coastal mediterranean ecosystems" rdcu.be/evGGx

@jpgattuso.bsky.social www.medecc.org

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title, authors and abstract of the paper Climate change risks on key open marine and coastal mediterranean ecosystems Abed El Rahman Hassoun1, Meryem Mojtahid, Mohammad Merheb, Piero Lionello, Jean-Pierre Gattuso & Wolfgang Cramer Mediterranean open marine and coastal ecosystems face multiple risks that impact their unique biodiversity, with climate change representing a major ongoing threat. While these ecosystems are also under pressure from non-climatic anthropogenic drivers (e.g., overfishing, pollution), this study primarily focuses on risks related to climate change. To assess these risks and evaluate their confidence levels, we adopt the scenario-based approach of the Intergovernmental Panel on Climate Change (IPCC), relying on a review of literature projecting changes in Mediterranean Sea ecosystems. The main drivers of environmental change are sea level rise, ocean warming and acidification. Similar to global conditions, all Mediterranean ecosystems face high risks under all climate scenarios, with coastal ecosystems being more strongly impacted than open marine ecosystems. For these coastal ecosystems, risk levels are expected to become very high already once global warming exceeds 0.8 °C with respect to the 1976–2005 period. A few Mediterranean ecosystems (e.g., coralligenous and rocky coasts) are relatively more resilient compared to others, probably because of their long evolutionary history and the presence of a variety of climatic and hydrological conditions. However, high-emission scenarios in specific sub-basins, in addition to acidification impacts, could reduce this resilience, decreasing both habitat extent and ecosystem function dramatically. Overall, due to the higher observed and projected rates of climate change in the Mediterranean, compared to global trends, for variables such as seawater temperature and pH, marine ecosystems (particularly coastal) are projected to be under higher risks compared to the global ocean.
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jul 10
Non, cela n'atténue en rien le fait que la Méditerranée se réchauffe sur le long terme : depuis 1995 la température dans la rade de Villefranche-sur-Mer augmente de 0.4°C par décennie et de 1°C par décennie en juillet.
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jul 10
En effet, le contenu de chaleur est par nature intégrateur et donc pas soumis à la variabilité naturelle à haute fréquence comme l'est la SST. Cela dit, les mesures instantanées restent importantes car ce sont elles qui contrôlent les réponses biologiques, écologiques et biogéochimiques.
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jul 10
Titre inexact pour un compte rendu médiocre d’un article pourtant intéressant.
biomarine.bsky.social
Yannick C. @biomarine.bsky.social · Jul 9
🌊 L'eau de mer se transforme en acide carbonique: que se passe-t-il vraiment ? www.techno-science.net/actualite/ea...
🌊 L'eau de mer se transforme en acide carbonique: que se passe-t-il vraiment ?
Une équipe internationale de chercheurs a évalué l'impact du dioxyde de carbone sur les océans. Leurs travaux,...
www.techno-science.net
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jul 10
Sea surface temperatures reached exceptional levels in the NW Mediterranean in June–early July. The #MHW abruptly ended at the #LOV station in Villefranche, France, after a windstorm caused strong mixing. SST fell from 28.7°C to 18.8°C in ~24 h.
🌊
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Reposted by Jean‐Pierre Gattuso

biomarine.bsky.social
Yannick C. @biomarine.bsky.social · Jul 9
🌊 L'eau de mer se transforme en acide carbonique: que se passe-t-il vraiment ? www.techno-science.net/actualite/ea...
🌊 L'eau de mer se transforme en acide carbonique: que se passe-t-il vraiment ?
Une équipe internationale de chercheurs a évalué l'impact du dioxyde de carbone sur les océans. Leurs travaux,...
www.techno-science.net

Reposted by Jean‐Pierre Gattuso

co2ley.bsky.social
Sarah Cooley @co2ley.bsky.social · Jul 2
🌊 Science community: Inference journal mixes pseudoscience and real science. Don’t be lured by a paycheck offered for a science article. Quick mnemonic: In(ter)ference. Details ⬇️ www.motherjones.com/environment/...
A science journal funded by Peter Thiel is running articles dismissing climate change and evolution
Yet Inference also has contributions from well-known intellectuals and scientists.
www.motherjones.com
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jul 2
🌊
jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jul 2
The Nice Declaration “Our Ocean, Our Future: United for Urgent Action” adopted by acclamation at the UN Ocean Conference (#UNOC3) last month in Nice required a recorded vote by the UN General Assembly. Results:
- 162 in favour
- 1 against (US)
- no abstentions
press.un.org/en/2025/ga12...
General Assembly Endorses Nice Ocean Conference Declaration, Adopts $5.38 Billion Peacekeeping Budget | Meetings Coverage and Press Releases
The General Assembly today endorsed the political declaration of the United Nations Ocean Conference, which establishes multilateral ocean governance. It also adopted the $5.38 billion peacekeeping bu...
press.un.org
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Reposted by Terry P. Hughes, Jean‐Pierre Gattuso

jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jul 2
The Nice Declaration “Our Ocean, Our Future: United for Urgent Action” adopted by acclamation at the UN Ocean Conference (#UNOC3) last month in Nice required a recorded vote by the UN General Assembly. Results:
- 162 in favour
- 1 against (US)
- no abstentions
press.un.org/en/2025/ga12...
General Assembly Endorses Nice Ocean Conference Declaration, Adopts $5.38 Billion Peacekeeping Budget | Meetings Coverage and Press Releases
The General Assembly today endorsed the political declaration of the United Nations Ocean Conference, which establishes multilateral ocean governance. It also adopted the $5.38 billion peacekeeping bu...
press.un.org
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Reposted by Jean‐Pierre Gattuso

sdjradiofrance.bsky.social
SDJRadiofrance 📻 @sdjradiofrance.bsky.social · Jun 26
L'investigation est un pilier du service public. A la radio, elle ne doit pas être menacée! Soutien à @investigationrf.bsky.social .
Lettre ouverte 👇
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jun 26
The ODIPE (Ocean Diplomacy Ethnography) team—15 social science researchers—attended #OOSC and #UNOC3. They have started publishing insightful articles (in English and French), with more to come:
🔗 www.odipe.org/scenes/
SCENES - ODIPE
Each section is intended to provide an overview of the diverse scenes of ocean diplomacy that the ethnographers will be observing and analyzing in the course of their collective research. You will fin...
www.odipe.org
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jpgattuso.bsky.social
Jean-Pierre Gattuso @jpgattuso.bsky.social · Jun 23
The special evening of the One Ocean Science Congress (#OOSC) brought together art and science. Many participants were unable to attend due to the venue’s limited capacity. Fortunately, the event is now available on YouTube for all to view.
@ifremer.bsky.social @cnrs.fr 🌊
youtu.be/II5N6Ii-fVY?...
For the Ocean : Special Event Of the One Ocean Science Congress
YouTube video by Ifremer
youtu.be
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