Marion Leroutier
@leroutierm.bsky.social
Environmental economist and Assistant prof. at CREST and ENSAE, Paris
Climate policy, air pollution, health
Prev.: IFS, Misum; PhD from PSE & Cired
Posts in English & French
website: https://marionleroutier.github.io/
Climate policy, air pollution, health
Prev.: IFS, Misum; PhD from PSE & Cired
Posts in English & French
website: https://marionleroutier.github.io/
That's amazing and well-deserved, well done Christine and IFS team!!
November 13, 2025 at 12:19 PM
That's amazing and well-deserved, well done Christine and IFS team!!
Reposted by Marion Leroutier
🚨 We economists at @crestumr.bsky.social IPParis are hiring🚨
We have 3 positions:
1 assistant prof in econometrics (ENSAE
1 assistant prof in Digital Economics and IO (Telecom)
1 assistant or associate, all fields (Polytechnique)
econjobmarket.org/positions/11...
Please circulate! #econsky
We have 3 positions:
1 assistant prof in econometrics (ENSAE
1 assistant prof in Digital Economics and IO (Telecom)
1 assistant or associate, all fields (Polytechnique)
econjobmarket.org/positions/11...
Please circulate! #econsky
October 15, 2025 at 8:32 AM
🚨 We economists at @crestumr.bsky.social IPParis are hiring🚨
We have 3 positions:
1 assistant prof in econometrics (ENSAE
1 assistant prof in Digital Economics and IO (Telecom)
1 assistant or associate, all fields (Polytechnique)
econjobmarket.org/positions/11...
Please circulate! #econsky
We have 3 positions:
1 assistant prof in econometrics (ENSAE
1 assistant prof in Digital Economics and IO (Telecom)
1 assistant or associate, all fields (Polytechnique)
econjobmarket.org/positions/11...
Please circulate! #econsky
Reposted by Marion Leroutier
Just out: the latest version of our paper on gender and carbon footprints!
November 11, 2025 at 10:26 AM
Just out: the latest version of our paper on gender and carbon footprints!
Reposted by Marion Leroutier
Mediapart et « Libération » révèlent des images inédites du 25 mars 2023. Elles montrent des consignes prohibées et dangereuses données par la hiérarchie.
Enquête vidéo de @camillepolloni.bsky.social et @laurawoj1.bsky.social 👉 www.mediapart.fr/journal/fran...
Enquête vidéo de @camillepolloni.bsky.social et @laurawoj1.bsky.social 👉 www.mediapart.fr/journal/fran...
November 5, 2025 at 11:18 AM
Mediapart et « Libération » révèlent des images inédites du 25 mars 2023. Elles montrent des consignes prohibées et dangereuses données par la hiérarchie.
Enquête vidéo de @camillepolloni.bsky.social et @laurawoj1.bsky.social 👉 www.mediapart.fr/journal/fran...
Enquête vidéo de @camillepolloni.bsky.social et @laurawoj1.bsky.social 👉 www.mediapart.fr/journal/fran...
Reposted by Marion Leroutier
📢 Two weeks left to apply for a (2-year) research fellowship @iast.fr
A fantastic opportunity to work full-time on your own research, in an interdisciplinary environment, and in a lovely city in the South of France.
Deadline: November 15, 2025
How to apply: www.iast.fr/research-fel...
A fantastic opportunity to work full-time on your own research, in an interdisciplinary environment, and in a lovely city in the South of France.
Deadline: November 15, 2025
How to apply: www.iast.fr/research-fel...
Research Fellowships
Each year, IAST invites applications for post-doctoral Research Fellowships, which offer candidates an opportunity to devote themselves full-time to their research at the start of their careers. Fello...
www.iast.fr
October 28, 2025 at 1:44 PM
📢 Two weeks left to apply for a (2-year) research fellowship @iast.fr
A fantastic opportunity to work full-time on your own research, in an interdisciplinary environment, and in a lovely city in the South of France.
Deadline: November 15, 2025
How to apply: www.iast.fr/research-fel...
A fantastic opportunity to work full-time on your own research, in an interdisciplinary environment, and in a lovely city in the South of France.
Deadline: November 15, 2025
How to apply: www.iast.fr/research-fel...
Reposted by Marion Leroutier
We are hiring an Assistant or Associate Professor in Computational Sociology! Come join a vibrant and diverse sociology and CSS team at CREST. Great students, great colleagues, and amazing working condition.
📢 CREST & ENSAE Paris (IP Paris) are hiring an Assistant/Associate Professor in Computational Sociology starting Sept 2026!
crest.science/wp-content/u...
🧠 Quantitative & computational focus
🌍 Open to all
📅 Apply by Jan 31 2026 → recruitment@ensae.fr
#AcademicJobs #Sociology #HiPARIS #CREST
crest.science/wp-content/u...
🧠 Quantitative & computational focus
🌍 Open to all
📅 Apply by Jan 31 2026 → recruitment@ensae.fr
#AcademicJobs #Sociology #HiPARIS #CREST
crest.science
October 17, 2025 at 7:48 AM
We are hiring an Assistant or Associate Professor in Computational Sociology! Come join a vibrant and diverse sociology and CSS team at CREST. Great students, great colleagues, and amazing working condition.
Come work with us at @crestumr.bsky.social !
You will find a fantastic research environment, a collegial atmosphere and super bright students ✨
You will find a fantastic research environment, a collegial atmosphere and super bright students ✨
🚨 We economists at @crestumr.bsky.social IPParis are hiring🚨
We have 3 positions:
1 assistant prof in econometrics (ENSAE
1 assistant prof in Digital Economics and IO (Telecom)
1 assistant or associate, all fields (Polytechnique)
econjobmarket.org/positions/11...
Please circulate! #econsky
We have 3 positions:
1 assistant prof in econometrics (ENSAE
1 assistant prof in Digital Economics and IO (Telecom)
1 assistant or associate, all fields (Polytechnique)
econjobmarket.org/positions/11...
Please circulate! #econsky
October 15, 2025 at 7:48 PM
Come work with us at @crestumr.bsky.social !
You will find a fantastic research environment, a collegial atmosphere and super bright students ✨
You will find a fantastic research environment, a collegial atmosphere and super bright students ✨
Reposted by Marion Leroutier
Paris-Berlin sleeper: low carbon, 2 years old, constantly full, but currently losing SNCF a few million EUR/yr
Intl Jet fuel tax exemptions are 80 years old and cost the EU 22 million EUR/yr for the Paris-Berlin route alone.
And you're cutting... the sleeper?
www.theguardian.com/travel/2025/...
Intl Jet fuel tax exemptions are 80 years old and cost the EU 22 million EUR/yr for the Paris-Berlin route alone.
And you're cutting... the sleeper?
www.theguardian.com/travel/2025/...
It’s goodnight Vienna as Paris sleeper train to Austria and Berlin hit by cuts
Some Nightjet services suspended from mid-December after French withdrawal amid public budget crisis
www.theguardian.com
September 29, 2025 at 9:31 PM
Paris-Berlin sleeper: low carbon, 2 years old, constantly full, but currently losing SNCF a few million EUR/yr
Intl Jet fuel tax exemptions are 80 years old and cost the EU 22 million EUR/yr for the Paris-Berlin route alone.
And you're cutting... the sleeper?
www.theguardian.com/travel/2025/...
Intl Jet fuel tax exemptions are 80 years old and cost the EU 22 million EUR/yr for the Paris-Berlin route alone.
And you're cutting... the sleeper?
www.theguardian.com/travel/2025/...
Reposted by Marion Leroutier
The potential for CO2 is prudently estimated at 0.7°C of warming.
Meaning if we stay on the current trajectory of +2.7°C in 2100 (and not even net-zero by then), it will hardly be possible to reverse to +1.5°C.
Meaning if we stay on the current trajectory of +2.7°C in 2100 (and not even net-zero by then), it will hardly be possible to reverse to +1.5°C.
NEW STUDY: How much CO2 can we safely store in geological formations?
In a new @nature.com study, we cross-check established academic and industry estimates with various risk factors.
We find a prudent geological CO2 storage limit that is about 10x smaller. /1
In a new @nature.com study, we cross-check established academic and industry estimates with various risk factors.
We find a prudent geological CO2 storage limit that is about 10x smaller. /1
September 4, 2025 at 8:06 AM
The potential for CO2 is prudently estimated at 0.7°C of warming.
Meaning if we stay on the current trajectory of +2.7°C in 2100 (and not even net-zero by then), it will hardly be possible to reverse to +1.5°C.
Meaning if we stay on the current trajectory of +2.7°C in 2100 (and not even net-zero by then), it will hardly be possible to reverse to +1.5°C.
Reposted by Marion Leroutier
L'asso Expertise climat fait un super travail pour que les médias s'appuient sur le travail des scientifiques et pas sur de pseudo-experts autoproclamés, pour traiter des questions de climat et de biodiversité.
Ils ont besoin de vos dons pour un nouveau projet :
www.helloasso.com/associations...
Ils ont besoin de vos dons pour un nouveau projet :
www.helloasso.com/associations...
Racontons ce qui se construit. Pas seulement ce qui s’effondre
Financement participatif organisé par Expertises climat - Jusqu'au 8 octobre inclus, 1% for the Planet double vos dons au profit des 40 associations sélectionnées aux Rencontres pour la Planète.
www.helloasso.com
September 1, 2025 at 8:20 AM
L'asso Expertise climat fait un super travail pour que les médias s'appuient sur le travail des scientifiques et pas sur de pseudo-experts autoproclamés, pour traiter des questions de climat et de biodiversité.
Ils ont besoin de vos dons pour un nouveau projet :
www.helloasso.com/associations...
Ils ont besoin de vos dons pour un nouveau projet :
www.helloasso.com/associations...
Reposted by Marion Leroutier
🌳 🔥 🌎 Our new paper: The extreme fire-prone #weather underpinning some of the worst #wildfire episodes this century has become more than twice as likely due to #climate change—a trend now evident across much of the world's tropical and mid-latitude #forests.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Climate change has increased the odds of extreme regional forest fire years globally - Nature Communications
The authors show that extreme fire years in global forests align with rare fire weather extremes. Climate change has made such extremes 88-152% more probable. These findings highlight the need for act...
www.nature.com
July 11, 2025 at 8:54 AM
🌳 🔥 🌎 Our new paper: The extreme fire-prone #weather underpinning some of the worst #wildfire episodes this century has become more than twice as likely due to #climate change—a trend now evident across much of the world's tropical and mid-latitude #forests.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Marion Leroutier
Influx of Chinese EVs along the lines of Japanese/Korean cars in the 80s: negligible overall GDP impact, acc to IMF calculations.
Climate change, natural disaster scenario, until 2030: -4.7% of GDP in the euro area.
Just to put that into perspective. www.ecb.europa.eu/press/blog/d...
Climate change, natural disaster scenario, until 2030: -4.7% of GDP in the euro area.
Just to put that into perspective. www.ecb.europa.eu/press/blog/d...
Climate risks: no longer the tragedy of the horizon
The European Central Bank (ECB) is the central bank of the European Union countries which have adopted the euro. Our main task is to maintain price stability in the euro area and so preserve the purch...
www.ecb.europa.eu
July 9, 2025 at 2:09 PM
Influx of Chinese EVs along the lines of Japanese/Korean cars in the 80s: negligible overall GDP impact, acc to IMF calculations.
Climate change, natural disaster scenario, until 2030: -4.7% of GDP in the euro area.
Just to put that into perspective. www.ecb.europa.eu/press/blog/d...
Climate change, natural disaster scenario, until 2030: -4.7% of GDP in the euro area.
Just to put that into perspective. www.ecb.europa.eu/press/blog/d...
Reposted by Marion Leroutier
Dans son rapport annuel, le Haut Conseil pour le climat regrette que le rythme de décarbonation ait "beaucoup ralenti" en France en 2024 et déplore les reculs environnementaux (ZFE, ZAN, etc). Ces retards "importants" sont "incompatibles" avec les objectifs 2030/2050 www.lemonde.fr/planete/arti...
La France a pris des « retards importants » pour tenir l’objectif de neutralité carbone en 2050
Dans son rapport annuel, le Haut Conseil pour le climat regrette que le rythme de décarbonation ait « beaucoup ralenti » en 2024 et déplore les reculs environnementaux, comme pour les zones à faibles ...
www.lemonde.fr
July 3, 2025 at 6:50 AM
Dans son rapport annuel, le Haut Conseil pour le climat regrette que le rythme de décarbonation ait "beaucoup ralenti" en France en 2024 et déplore les reculs environnementaux (ZFE, ZAN, etc). Ces retards "importants" sont "incompatibles" avec les objectifs 2030/2050 www.lemonde.fr/planete/arti...
Reposted by Marion Leroutier
Is it "good" or "bad" when skilled people leave low-income countries? We summarized the evidence in favor of "brain gain" vs. "brain drain": www.science.org/doi/epdf/10....
Ungated PDF: johanneshaushofer.com/research
Ungated PDF: johanneshaushofer.com/research
May 22, 2025 at 6:28 PM
Is it "good" or "bad" when skilled people leave low-income countries? We summarized the evidence in favor of "brain gain" vs. "brain drain": www.science.org/doi/epdf/10....
Ungated PDF: johanneshaushofer.com/research
Ungated PDF: johanneshaushofer.com/research
Reposted by Marion Leroutier
Very warm congratulations to @linusmattauch.bsky.social! Very well deserved.
🏆𝗘𝘂𝗿𝗼𝗽𝗲𝗮𝗻 𝗔𝘄𝗮𝗿𝗱 𝗳𝗼𝗿 𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵𝗲𝗿𝘀 𝗶𝗻 𝗘𝗻𝘃𝗶𝗿𝗼𝗻𝗺𝗲𝗻𝘁𝗮𝗹 𝗘𝗰𝗼𝗻𝗼𝗺𝗶𝗰𝘀 𝘂𝗻𝗱𝗲𝗿 𝘁𝗵𝗲 𝗔𝗴𝗲 𝗼𝗳 𝗙𝗼𝗿𝘁𝘆🏆
We are delighted to announce the winner of the 2025 European Award for Researchers in Environmental Economics under the Age of Forty: Linus Mattauch (TU Berlin & Potsdam Institute for Climate Impact Research)
We are delighted to announce the winner of the 2025 European Award for Researchers in Environmental Economics under the Age of Forty: Linus Mattauch (TU Berlin & Potsdam Institute for Climate Impact Research)
June 18, 2025 at 11:39 AM
Very warm congratulations to @linusmattauch.bsky.social! Very well deserved.
Reposted by Marion Leroutier
The energy transition continues to be the best beat. "India’s plan to expand one of the world’s largest coal power fleets in order to meet its growing energy needs is being undone by a shortage of companies able and willing to help build new plants."
🎁 link
www.bloomberg.com/news/article...
🎁 link
www.bloomberg.com/news/article...
Years of Coal Backlash Undermine India’s Energy Security Push
India’s plan to expand one of the world’s largest coal power fleets in order to meet its growing energy needs is being undone by a shortage of companies able and willing to help build new plants.
www.bloomberg.com
May 20, 2025 at 9:32 AM
The energy transition continues to be the best beat. "India’s plan to expand one of the world’s largest coal power fleets in order to meet its growing energy needs is being undone by a shortage of companies able and willing to help build new plants."
🎁 link
www.bloomberg.com/news/article...
🎁 link
www.bloomberg.com/news/article...
Reposted by Marion Leroutier
NEW ANALYSIS: UK's solar power surges 42% to a new record, after the sunniest spring on record
* For the first time, solar was >10% of UK generation in consecutive months (April/May 2025)
* In 2025, solar has already avoided gas imports that would've cost £600m
www.carbonbrief.org/analysis-uks...
* For the first time, solar was >10% of UK generation in consecutive months (April/May 2025)
* In 2025, solar has already avoided gas imports that would've cost £600m
www.carbonbrief.org/analysis-uks...
June 4, 2025 at 3:41 PM
NEW ANALYSIS: UK's solar power surges 42% to a new record, after the sunniest spring on record
* For the first time, solar was >10% of UK generation in consecutive months (April/May 2025)
* In 2025, solar has already avoided gas imports that would've cost £600m
www.carbonbrief.org/analysis-uks...
* For the first time, solar was >10% of UK generation in consecutive months (April/May 2025)
* In 2025, solar has already avoided gas imports that would've cost £600m
www.carbonbrief.org/analysis-uks...
📄 And much more in the full working paper, available here:
www.lse.ac.uk/granthaminst... (12/12)
www.lse.ac.uk/granthaminst... (12/12)
The gender gap in carbon footprints: determinants and implications - Grantham Research Institute on climate change and the environment
This paper uses detailed data on consumption patterns from France to quantify the gender gap in carbon footprints related to food and transport and investigate its underlying drivers.
www.lse.ac.uk
May 20, 2025 at 3:16 PM
📄 And much more in the full working paper, available here:
www.lse.ac.uk/granthaminst... (12/12)
www.lse.ac.uk/granthaminst... (12/12)
🎯 Policy takeaways? Climate policy could:
- Acknowledge gender gaps as they may drive climate policy costs and support
- Target norms (masculinity ≠ meat/car) (11/12)
- Acknowledge gender gaps as they may drive climate policy costs and support
- Target norms (masculinity ≠ meat/car) (11/12)
May 20, 2025 at 3:16 PM
🎯 Policy takeaways? Climate policy could:
- Acknowledge gender gaps as they may drive climate policy costs and support
- Target norms (masculinity ≠ meat/car) (11/12)
- Acknowledge gender gaps as they may drive climate policy costs and support
- Target norms (masculinity ≠ meat/car) (11/12)
📉 If men adopted carbon intensity of women, keeping quantities constant, 🇫🇷 would cut 13 MtCO₂= 3x what’s required annually in food & transport to meet 2030 targets (10/12)
May 20, 2025 at 3:16 PM
📉 If men adopted carbon intensity of women, keeping quantities constant, 🇫🇷 would cut 13 MtCO₂= 3x what’s required annually in food & transport to meet 2030 targets (10/12)
👨👩👧 Household structure matters.
- Food: women in couples eat more like men ➡️ convergence
- Transport: men in couples (esp. with kids) emit way more ➡️ specialization (9/12)
- Food: women in couples eat more like men ➡️ convergence
- Transport: men in couples (esp. with kids) emit way more ➡️ specialization (9/12)
May 20, 2025 at 3:16 PM
👨👩👧 Household structure matters.
- Food: women in couples eat more like men ➡️ convergence
- Transport: men in couples (esp. with kids) emit way more ➡️ specialization (9/12)
- Food: women in couples eat more like men ➡️ convergence
- Transport: men in couples (esp. with kids) emit way more ➡️ specialization (9/12)
✈️ Planes? No gender gap. Suggests gendered preferences, not climate concern, drive red meat and car emissions
➡️ 🧠 Gendered norms could play a role here. Our findings align with studies linking masculinity to:
- red meat consumption
- car usage (8/12)
➡️ 🧠 Gendered norms could play a role here. Our findings align with studies linking masculinity to:
- red meat consumption
- car usage (8/12)
May 20, 2025 at 3:16 PM
✈️ Planes? No gender gap. Suggests gendered preferences, not climate concern, drive red meat and car emissions
➡️ 🧠 Gendered norms could play a role here. Our findings align with studies linking masculinity to:
- red meat consumption
- car usage (8/12)
➡️ 🧠 Gendered norms could play a role here. Our findings align with studies linking masculinity to:
- red meat consumption
- car usage (8/12)
For 🥩, women simply eat less of it as a % of their diet.
For 🚙, it’s not so much that women use it less, but:
- Their car trips have a higher occupancy rate
- Based on singles, they own less carbon-intensive cars
..which decreases their emissions relative to men (7/12)
For 🚙, it’s not so much that women use it less, but:
- Their car trips have a higher occupancy rate
- Based on singles, they own less carbon-intensive cars
..which decreases their emissions relative to men (7/12)
May 20, 2025 at 3:16 PM
For 🥩, women simply eat less of it as a % of their diet.
For 🚙, it’s not so much that women use it less, but:
- Their car trips have a higher occupancy rate
- Based on singles, they own less carbon-intensive cars
..which decreases their emissions relative to men (7/12)
For 🚙, it’s not so much that women use it less, but:
- Their car trips have a higher occupancy rate
- Based on singles, they own less carbon-intensive cars
..which decreases their emissions relative to men (7/12)
🔍 Digging further…We additionally adjusting for calories eaten and km traveled, partly reflecting biological differences and on the labor market.
🥩 Red meat and 🚙 car usage account for 70%–100% of the remaining gender gap. (6/12)
🥩 Red meat and 🚙 car usage account for 70%–100% of the remaining gender gap. (6/12)
May 20, 2025 at 3:16 PM
🔍 Digging further…We additionally adjusting for calories eaten and km traveled, partly reflecting biological differences and on the labor market.
🥩 Red meat and 🚙 car usage account for 70%–100% of the remaining gender gap. (6/12)
🥩 Red meat and 🚙 car usage account for 70%–100% of the remaining gender gap. (6/12)
The gap decreases to 18% once we adjust for socio-economic differences between men and women (age, education, household income, employment status) (5/12)
May 20, 2025 at 3:16 PM
The gap decreases to 18% once we adjust for socio-economic differences between men and women (age, education, household income, employment status) (5/12)