Dr. Nina Davtian (she/her/hers)
@ninadavtian.bsky.social
@cnrs-insu.bsky.social researcher at @climatecerege.bsky.social.
Using biomarkers to study climate, ocean, and environment of the past.
@icta-uab.bsky.social alumna.
ORCID: https://orcid.org/0000-0002-3047-6064
🇫🇷 -> 🇪🇸 -> 🇫🇷
Using biomarkers to study climate, ocean, and environment of the past.
@icta-uab.bsky.social alumna.
ORCID: https://orcid.org/0000-0002-3047-6064
🇫🇷 -> 🇪🇸 -> 🇫🇷
Pinned
Hello! 👋🏻
Trained as a geologist, I do paleo-reconstructions using molecular fossils, aka biomarkers.
My favorite biomarkers are archaeal and bacterial membrane-spanning lipids—glycerol dialkyl glycerol tetraethers, GDGTs.
A 🧵 of 🧵 on my five most significant papers in chronological order: 👇🏻
(1/7)
Trained as a geologist, I do paleo-reconstructions using molecular fossils, aka biomarkers.
My favorite biomarkers are archaeal and bacterial membrane-spanning lipids—glycerol dialkyl glycerol tetraethers, GDGTs.
A 🧵 of 🧵 on my five most significant papers in chronological order: 👇🏻
(1/7)
Reposted by Dr. Nina Davtian (she/her/hers)
In geology, if something doesn't show activity for 15 thousands of years, this doesn't meat it isn't active. Even million years of no signs of activity doesn't mean the system is dead.
🧪⚒️
🧪⚒️
Here's the GVP page of Hayli Gubbi in Ethiopia: volcano.si.edu/volcano.cfm?.... Plume from the eruption can be seen in this Aqua/MODIS image cross the Red Sea to the Arabian Peninsula. #eruption #volcano
November 23, 2025 at 9:00 PM
In geology, if something doesn't show activity for 15 thousands of years, this doesn't meat it isn't active. Even million years of no signs of activity doesn't mean the system is dead.
🧪⚒️
🧪⚒️
Reposted by Dr. Nina Davtian (she/her/hers)
Sea surface temperatures are rising around the perimeter of the #Arctic Ocean in November. Long-term trends ➡️ decreasing ice and warming atmosphere+ocean
[For more information: doi.org/10.25923/9z9.... Data from NOAA OISSTv2.1]
[For more information: doi.org/10.25923/9z9.... Data from NOAA OISSTv2.1]
November 26, 2025 at 9:06 PM
Sea surface temperatures are rising around the perimeter of the #Arctic Ocean in November. Long-term trends ➡️ decreasing ice and warming atmosphere+ocean
[For more information: doi.org/10.25923/9z9.... Data from NOAA OISSTv2.1]
[For more information: doi.org/10.25923/9z9.... Data from NOAA OISSTv2.1]
Reposted by Dr. Nina Davtian (she/her/hers)
Big shoutout to @geodatarankings for showing us this basic geography trivia in map form: what countries are home to 100+ people?
November 26, 2025 at 8:42 PM
Big shoutout to @geodatarankings for showing us this basic geography trivia in map form: what countries are home to 100+ people?
Reposted by Dr. Nina Davtian (she/her/hers)
#Communiqué 🗞️ Pour sa 4ème édition, les médailles de la médiation scientifique du @cnrs.fr et de @franceuniversites.bsky.social distinguent 4 projets qui, par leur créativité et leur engagement, contribuent à nourrir le dialogue entre la science et la société.
👉 www.cnrs.fr/fr/presse/le...
👉 www.cnrs.fr/fr/presse/le...
November 26, 2025 at 7:30 PM
#Communiqué 🗞️ Pour sa 4ème édition, les médailles de la médiation scientifique du @cnrs.fr et de @franceuniversites.bsky.social distinguent 4 projets qui, par leur créativité et leur engagement, contribuent à nourrir le dialogue entre la science et la société.
👉 www.cnrs.fr/fr/presse/le...
👉 www.cnrs.fr/fr/presse/le...
Reposted by Dr. Nina Davtian (she/her/hers)
If you are interested in the Early Miocene, this is a great opportunity. There is an upcoming Webinar on 4 Dec on the project. Check it out and consider trying out for the expedition. ⚒️
plymouth.zoom.us/webinar/regi...
plymouth.zoom.us/webinar/regi...
November 26, 2025 at 7:41 PM
If you are interested in the Early Miocene, this is a great opportunity. There is an upcoming Webinar on 4 Dec on the project. Check it out and consider trying out for the expedition. ⚒️
plymouth.zoom.us/webinar/regi...
plymouth.zoom.us/webinar/regi...
Reposted by Dr. Nina Davtian (she/her/hers)
Wrapping up fieldwork with some data logger downloads.
That's another 6 months of continuous measurement of water flux into Harrie Wood Cave. 6 more potential recharge events identified.
Thanks to Pauline Treble, 2026 will be the 20th year of long term monitoring at this site.
That's another 6 months of continuous measurement of water flux into Harrie Wood Cave. 6 more potential recharge events identified.
Thanks to Pauline Treble, 2026 will be the 20th year of long term monitoring at this site.
November 26, 2025 at 6:56 PM
Wrapping up fieldwork with some data logger downloads.
That's another 6 months of continuous measurement of water flux into Harrie Wood Cave. 6 more potential recharge events identified.
Thanks to Pauline Treble, 2026 will be the 20th year of long term monitoring at this site.
That's another 6 months of continuous measurement of water flux into Harrie Wood Cave. 6 more potential recharge events identified.
Thanks to Pauline Treble, 2026 will be the 20th year of long term monitoring at this site.
Reposted by Dr. Nina Davtian (she/her/hers)
Le @cnrs.fr et @franceuniversites.bsky.social remettent les médailles de la médiation scientifique 2025. 👏
Visionnez la cérémonie en direct pour découvrir tous les projets lauréats :
🔴▶️ youtube.com/live/XN9asta...
Et suivez notre fil 👇
Visionnez la cérémonie en direct pour découvrir tous les projets lauréats :
🔴▶️ youtube.com/live/XN9asta...
Et suivez notre fil 👇
November 26, 2025 at 6:09 PM
Le @cnrs.fr et @franceuniversites.bsky.social remettent les médailles de la médiation scientifique 2025. 👏
Visionnez la cérémonie en direct pour découvrir tous les projets lauréats :
🔴▶️ youtube.com/live/XN9asta...
Et suivez notre fil 👇
Visionnez la cérémonie en direct pour découvrir tous les projets lauréats :
🔴▶️ youtube.com/live/XN9asta...
Et suivez notre fil 👇
Reposted by Dr. Nina Davtian (she/her/hers)
Fires, floods, and fossil fuels - COP30 had it all. While many countries brought a meaningful contribution to this “annual global climate potluck,” a bloc of oil-producing nations prevented agreement on phasing out fossil fuels. COP30 reminded us that momentum comes from the ground up!
What COP30 got right... and what it didn't | Talking Climate with Katharine Hayhoe
Get more from Talking Climate with Katharine Hayhoe on Patreon
www.patreon.com
November 26, 2025 at 5:38 PM
Fires, floods, and fossil fuels - COP30 had it all. While many countries brought a meaningful contribution to this “annual global climate potluck,” a bloc of oil-producing nations prevented agreement on phasing out fossil fuels. COP30 reminded us that momentum comes from the ground up!
Reposted by Dr. Nina Davtian (she/her/hers)
And here is the recording of the debate.
www.youtube.com/watch?v=n8Ac...
www.youtube.com/watch?v=n8Ac...
November 26, 2025 at 5:41 PM
And here is the recording of the debate.
www.youtube.com/watch?v=n8Ac...
www.youtube.com/watch?v=n8Ac...
Reposted by Dr. Nina Davtian (she/her/hers)
Applications for Participation in IODP3 Expedition 505S are now open!
Deadline January 23rd 2026 - lnkd.in/etiWvk2z
If you are a researcher/science communicator interested in contributing to understanding an enigma in the early Miocene Earth system then please consider applying this expedition!
Deadline January 23rd 2026 - lnkd.in/etiWvk2z
If you are a researcher/science communicator interested in contributing to understanding an enigma in the early Miocene Earth system then please consider applying this expedition!
November 26, 2025 at 4:54 PM
Applications for Participation in IODP3 Expedition 505S are now open!
Deadline January 23rd 2026 - lnkd.in/etiWvk2z
If you are a researcher/science communicator interested in contributing to understanding an enigma in the early Miocene Earth system then please consider applying this expedition!
Deadline January 23rd 2026 - lnkd.in/etiWvk2z
If you are a researcher/science communicator interested in contributing to understanding an enigma in the early Miocene Earth system then please consider applying this expedition!
Reposted by Dr. Nina Davtian (she/her/hers)
I know you all are running away from the US, but we don't see too many positions like this opening up, and Miami has a really nice group in the geo department. ⚒️
(unfortunately, not really relevant right now to non-US citizens with the H1B fees)
(unfortunately, not really relevant right now to non-US citizens with the H1B fees)
I hear that University of Miami is looking for a paleoceanography / paleoclimate scientist:
careers.miami.edu/us/en/job/R1...
careers.miami.edu/us/en/job/R1...
Assistant Professor in Paleoceanography - Marine Geosciences in Miami, Florida, United States of America | Faculty & Physicians at University of Miami
Apply for Assistant Professor in Paleoceanography - Marine Geosciences job with University of Miami in Miami, Florida, United States of America. Faculty & Physicians at University of Miami
careers.miami.edu
November 26, 2025 at 4:40 PM
I know you all are running away from the US, but we don't see too many positions like this opening up, and Miami has a really nice group in the geo department. ⚒️
(unfortunately, not really relevant right now to non-US citizens with the H1B fees)
(unfortunately, not really relevant right now to non-US citizens with the H1B fees)
Reposted by Dr. Nina Davtian (she/her/hers)
I hear that University of Miami is looking for a paleoceanography / paleoclimate scientist:
careers.miami.edu/us/en/job/R1...
careers.miami.edu/us/en/job/R1...
Assistant Professor in Paleoceanography - Marine Geosciences in Miami, Florida, United States of America | Faculty & Physicians at University of Miami
Apply for Assistant Professor in Paleoceanography - Marine Geosciences job with University of Miami in Miami, Florida, United States of America. Faculty & Physicians at University of Miami
careers.miami.edu
November 26, 2025 at 4:26 PM
I hear that University of Miami is looking for a paleoceanography / paleoclimate scientist:
careers.miami.edu/us/en/job/R1...
careers.miami.edu/us/en/job/R1...
Reposted by Dr. Nina Davtian (she/her/hers)
🍎🫒👎Barcelona Homes Show Low Mediterranean Diet Adherence
New ICTA-UAB highlights significant social, economic, and district-level inequalities in access to healthy food in cities with more than 100,000 inhabitants.
www.miragenews.com/barcelona-ho...
New ICTA-UAB highlights significant social, economic, and district-level inequalities in access to healthy food in cities with more than 100,000 inhabitants.
www.miragenews.com/barcelona-ho...
Barcelona Homes Show Low Mediterranean Diet Adherence
Adherence to the Mediterranean diet in urban households across Barcelona is low or moderate, despite its widely recognized benefits for
www.miragenews.com
November 26, 2025 at 4:22 PM
🍎🫒👎Barcelona Homes Show Low Mediterranean Diet Adherence
New ICTA-UAB highlights significant social, economic, and district-level inequalities in access to healthy food in cities with more than 100,000 inhabitants.
www.miragenews.com/barcelona-ho...
New ICTA-UAB highlights significant social, economic, and district-level inequalities in access to healthy food in cities with more than 100,000 inhabitants.
www.miragenews.com/barcelona-ho...
Reposted by Dr. Nina Davtian (she/her/hers)
📌 TODAY @17:00 CET!
Join us for this #webinar with Sara Tremi Proietti, Mike Prior-Jones, and Jaz Millar, who will share their experiences and expertise on effective communication and actions to support #LGBT+ #equality.
📆 Wednesday, 26 November 2025 17:00 CET
👉 Register here: egu.eu/9P08T5
Join us for this #webinar with Sara Tremi Proietti, Mike Prior-Jones, and Jaz Millar, who will share their experiences and expertise on effective communication and actions to support #LGBT+ #equality.
📆 Wednesday, 26 November 2025 17:00 CET
👉 Register here: egu.eu/9P08T5
November 26, 2025 at 2:42 PM
📌 TODAY @17:00 CET!
Join us for this #webinar with Sara Tremi Proietti, Mike Prior-Jones, and Jaz Millar, who will share their experiences and expertise on effective communication and actions to support #LGBT+ #equality.
📆 Wednesday, 26 November 2025 17:00 CET
👉 Register here: egu.eu/9P08T5
Join us for this #webinar with Sara Tremi Proietti, Mike Prior-Jones, and Jaz Millar, who will share their experiences and expertise on effective communication and actions to support #LGBT+ #equality.
📆 Wednesday, 26 November 2025 17:00 CET
👉 Register here: egu.eu/9P08T5
Reposted by Dr. Nina Davtian (she/her/hers)
Sociologue et historienne des sciences au CNRS, Alice Tancoigne s’intéresse de près aux aliments fermentés présents dans nos assiettes, aux micro-organismes qui les composent et aux relations que ceux-ci entretiennent avec les humains... 🧀🔬
Brève de science : analyser la biodiversité microbienne
Qu’est-ce qui pourrait bien relier un sociologue, un législateur, un fromager et un microbiologiste ?
www.cnrs.fr
November 26, 2025 at 1:48 PM
Sociologue et historienne des sciences au CNRS, Alice Tancoigne s’intéresse de près aux aliments fermentés présents dans nos assiettes, aux micro-organismes qui les composent et aux relations que ceux-ci entretiennent avec les humains... 🧀🔬
Reposted by Dr. Nina Davtian (she/her/hers)
Last month was the hottest October on record for North America in this dataset... yet another extreme event
Data from @noaa.gov: www.ncei.noaa.gov/products/lan...
Data from @noaa.gov: www.ncei.noaa.gov/products/lan...
November 26, 2025 at 12:39 PM
Last month was the hottest October on record for North America in this dataset... yet another extreme event
Data from @noaa.gov: www.ncei.noaa.gov/products/lan...
Data from @noaa.gov: www.ncei.noaa.gov/products/lan...
Reposted by Dr. Nina Davtian (she/her/hers)
💰 Do you need #financial #support to attend #EGU26?
#EGU is here to ease your participation!
Submit your abstract by 1 December 2025 and get support through one of our three participation support schemes for #EGU26!
👉 Learn more here: egu.eu/5AKEKI
📸: Jerome Mayaud on imaggeo.egu.eu
#EGU is here to ease your participation!
Submit your abstract by 1 December 2025 and get support through one of our three participation support schemes for #EGU26!
👉 Learn more here: egu.eu/5AKEKI
📸: Jerome Mayaud on imaggeo.egu.eu
November 26, 2025 at 1:30 PM
💰 Do you need #financial #support to attend #EGU26?
#EGU is here to ease your participation!
Submit your abstract by 1 December 2025 and get support through one of our three participation support schemes for #EGU26!
👉 Learn more here: egu.eu/5AKEKI
📸: Jerome Mayaud on imaggeo.egu.eu
#EGU is here to ease your participation!
Submit your abstract by 1 December 2025 and get support through one of our three participation support schemes for #EGU26!
👉 Learn more here: egu.eu/5AKEKI
📸: Jerome Mayaud on imaggeo.egu.eu
Reposted by Dr. Nina Davtian (she/her/hers)
You'd be surprised how often the second and/or last author puts more work on the paper than the first.
#AcademicSky
#AcademicSky
November 26, 2025 at 12:50 PM
You'd be surprised how often the second and/or last author puts more work on the paper than the first.
#AcademicSky
#AcademicSky
Reposted by Dr. Nina Davtian (she/her/hers)
Leur relation étroite a été remarquée dès le XIXe siècle. Mais savez-vous pourquoi (et comment) les courants océaniques influencent le climat ❓
Science : Julie Deshayes, chercheuse @cnrs.fr au Locéan @lsce-ipsl.bsky.social
Synthèse graphique : Claire Marc
#Vulgarisation #SVT #Terminale
#thread
Science : Julie Deshayes, chercheuse @cnrs.fr au Locéan @lsce-ipsl.bsky.social
Synthèse graphique : Claire Marc
#Vulgarisation #SVT #Terminale
#thread
November 26, 2025 at 8:23 AM
Leur relation étroite a été remarquée dès le XIXe siècle. Mais savez-vous pourquoi (et comment) les courants océaniques influencent le climat ❓
Science : Julie Deshayes, chercheuse @cnrs.fr au Locéan @lsce-ipsl.bsky.social
Synthèse graphique : Claire Marc
#Vulgarisation #SVT #Terminale
#thread
Science : Julie Deshayes, chercheuse @cnrs.fr au Locéan @lsce-ipsl.bsky.social
Synthèse graphique : Claire Marc
#Vulgarisation #SVT #Terminale
#thread
Reposted by Dr. Nina Davtian (she/her/hers)
Relieved to see that the IRM beamline at the Australian Synchrotron was spared after having been included in proposed cuts!
We spent a couple of weeks working with beamline scientsist there, producing work which was published by my colleague Dr Liza McDonough last year. So hugely happy to hear […]
We spent a couple of weeks working with beamline scientsist there, producing work which was published by my colleague Dr Liza McDonough last year. So hugely happy to hear […]
Original post on fediscience.org
fediscience.org
November 26, 2025 at 12:31 PM
Relieved to see that the IRM beamline at the Australian Synchrotron was spared after having been included in proposed cuts!
We spent a couple of weeks working with beamline scientsist there, producing work which was published by my colleague Dr Liza McDonough last year. So hugely happy to hear […]
We spent a couple of weeks working with beamline scientsist there, producing work which was published by my colleague Dr Liza McDonough last year. So hugely happy to hear […]
Reposted by Dr. Nina Davtian (she/her/hers)
🗣️📽️Victoria Reyes-García, Premio Rei Jaume I, destaca cómo la visión indígena de la naturaleza como ser vivo puede guiar la acción climática.
🗣️📽️Victoria Reyes-García, Rei Jaume I Award winner, highlights how Indigenous views of nature as a living being can guide climate action
#ICTA_UABresearchers
🗣️📽️Victoria Reyes-García, Rei Jaume I Award winner, highlights how Indigenous views of nature as a living being can guide climate action
#ICTA_UABresearchers
November 26, 2025 at 11:17 AM
🗣️📽️Victoria Reyes-García, Premio Rei Jaume I, destaca cómo la visión indígena de la naturaleza como ser vivo puede guiar la acción climática.
🗣️📽️Victoria Reyes-García, Rei Jaume I Award winner, highlights how Indigenous views of nature as a living being can guide climate action
#ICTA_UABresearchers
🗣️📽️Victoria Reyes-García, Rei Jaume I Award winner, highlights how Indigenous views of nature as a living being can guide climate action
#ICTA_UABresearchers
Reposted by Dr. Nina Davtian (she/her/hers)
TODAY 👇
Ever received a #media interview request and you weren't sure how to respond? This #workshop will help you to practice both your #writing and interview #skills.
🕑 Wednesday 26 Nov 2025 14:00 CET
⚠️Places are limited!
📝Register here: egu.eu/0LAXH4
📸: Rodrigo Balaguer-Romano on #imaggeo
Ever received a #media interview request and you weren't sure how to respond? This #workshop will help you to practice both your #writing and interview #skills.
🕑 Wednesday 26 Nov 2025 14:00 CET
⚠️Places are limited!
📝Register here: egu.eu/0LAXH4
📸: Rodrigo Balaguer-Romano on #imaggeo
November 26, 2025 at 12:00 PM
Reposted by Dr. Nina Davtian (she/her/hers)
#MedaillesCNRS #ceremonie 🥈🥉💠 | 👏 Félicitations aux 33 lauréats qui ont reçu hier soir au Mucem leur médaille d’argent, de bronze, de cristal et leur cristal collectif lors de la cérémonie du @cnrs.fr en Provence et Corse 2025 !
November 26, 2025 at 10:49 AM
#MedaillesCNRS #ceremonie 🥈🥉💠 | 👏 Félicitations aux 33 lauréats qui ont reçu hier soir au Mucem leur médaille d’argent, de bronze, de cristal et leur cristal collectif lors de la cérémonie du @cnrs.fr en Provence et Corse 2025 !
Reposted by Dr. Nina Davtian (she/her/hers)
🗣️📰 Isabelle Anguelovski, investigadora ICTA-UAB
«La negación del cambio climático bloquea las políticas públicas».
ethic.es/entrevista-i...
@ianguelovski.bsky.social
«La negación del cambio climático bloquea las políticas públicas».
ethic.es/entrevista-i...
@ianguelovski.bsky.social
Isabelle Anguelovski: «La negación del cambio climático bloquea las políticas públicas» | Ethic
La urbanista Isabelle Anguelovski habla sobre la «gentrificación verde» y la necesidad de una buena planificación urbana.
ethic.es
November 26, 2025 at 10:31 AM
🗣️📰 Isabelle Anguelovski, investigadora ICTA-UAB
«La negación del cambio climático bloquea las políticas públicas».
ethic.es/entrevista-i...
@ianguelovski.bsky.social
«La negación del cambio climático bloquea las políticas públicas».
ethic.es/entrevista-i...
@ianguelovski.bsky.social
Reposted by Dr. Nina Davtian (she/her/hers)
GRAND SÉMINAIRE – Didier Nectoux [FR]
Rocks and minerals, essential since humanity’s dawn, raise major geostrategic and environmental challenges. Didier Nectoux, geologist and science communicator, invites you to explore them through a scientific yet accessible lens.
📍 Amphitheater Pasteur & Zoom
Rocks and minerals, essential since humanity’s dawn, raise major geostrategic and environmental challenges. Didier Nectoux, geologist and science communicator, invites you to explore them through a scientific yet accessible lens.
📍 Amphitheater Pasteur & Zoom
November 26, 2025 at 9:57 AM
GRAND SÉMINAIRE – Didier Nectoux [FR]
Rocks and minerals, essential since humanity’s dawn, raise major geostrategic and environmental challenges. Didier Nectoux, geologist and science communicator, invites you to explore them through a scientific yet accessible lens.
📍 Amphitheater Pasteur & Zoom
Rocks and minerals, essential since humanity’s dawn, raise major geostrategic and environmental challenges. Didier Nectoux, geologist and science communicator, invites you to explore them through a scientific yet accessible lens.
📍 Amphitheater Pasteur & Zoom