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
Posts Media Videos Starter Packs
Pinned
jpgattuso.bsky.social
‼️ 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).
jpgattuso.bsky.social
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
jpgattuso.bsky.social
It would be great if @oceana.bsky.social could avoid propagating scientifically inaccurate statements.
🌊 #oxygen

theconversation.com/humans-will-...
Reposted by Jean-Pierre Gattuso
oceanhelen.bsky.social
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
jpgattuso.bsky.social
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
Reposted by Jean-Pierre Gattuso
planktonteuta.bsky.social
🌊
absolutspacegrl.bsky.social
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
jpgattuso.bsky.social
🌊 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.
jpgattuso.bsky.social
« 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
jpgattuso.bsky.social
‼️Check out our new paper on #climate change risks in the #Mediterranean Sea led by Abed El Rahman Hassoun. 🌊
wolfgangcramer.net
Just out: "Climate change risks on key open marine and coastal mediterranean ecosystems" rdcu.be/evGGx

@jpgattuso.bsky.social www.medecc.org

1/n
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.
jpgattuso.bsky.social
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.
jpgattuso.bsky.social
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.
jpgattuso.bsky.social
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.
🌊
Reposted by Jean-Pierre Gattuso
co2ley.bsky.social
🌊 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
Reposted by Jean-Pierre Gattuso
sdjradiofrance.bsky.social
L'investigation est un pilier du service public. A la radio, elle ne doit pas être menacée! Soutien à @investigationrf.bsky.social .
Lettre ouverte 👇
jpgattuso.bsky.social
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
jpgattuso.bsky.social
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