Come work with us at @crestumr.bsky.social ! You will find a fantastic research environment, a collegial atmosphere and super bright students ✨

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/...

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.

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...

🌳 🔥 🌎 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...

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...

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...

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

Very warm congratulations to @linusmattauch.bsky.social! Very well deserved.

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...

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...

🚨 New working paper! We show that women in France emit 26% less CO₂ than men from food & transport. 🥗Food + 🚗 Transport =50% of individual carbon footprint — we show this isn’t just about biology or labor market differences. A thread👇🧵(1/12) Link to wp: www.lse.ac.uk/granthaminst...

NEW: Researchers have created the most complete map of the world’s rivers ever made offering a major leap forward for flood prediction, climate risk planning, and water resource management in a warming world. ⬇️ www.ox.ac.uk/news/2025-05...

Merci @audreygarric.bsky.social pour cet article dans Le Monde présentant les résultats des recherches menées avec @ondineberland.bsky.social sur les écarts d'empreinte carbone femmes-hommes.

Dans un nouveau working paper co-écrit avec @ondineberland.bsky.social, nous trouvons que les femmes ont une empreinte carbone 26% moins élevée que les hommes dans l’alimentation et les transports en 🇫🇷 Ce n’est pas seulement dû à des differences biologiques ou sur le marché du travail. Un🧵(1/11)

In this new paper joint with @ondineberland.bsky.social, featured in The Guardian, we show that : -women in France emit 26% less CO₂ than men from food & transpor - the gap isn’t just down to biology or labor market differences. Thread will follow, see full paper here: www.lse.ac.uk/granthaminst...

One of the many emergent issues with the phrase 'net zero' is that it became a proxy phrase for 'the politics of climate policies', and not 'stopping the heating of the atmosphere and oceans so that we don't fucking die' Imagine a debate about "will Labour stick with or abandon cancer prevention"

En France, la pollution aux particules fines augmente l'absentéisme des salariés, baisse leur productivité, affecte les consommateurs et nuit in fine aux entreprises. J'explique les résultats de notre étude menée avec Hélène Ollivier au micro de @vgarin.bsky.social pour RTL: shorturl.at/nbubg

There’s so much happening right now, I thought I’d put together a running thread on the dismantling of #climate and research and knowledge infrastructure in the United States 🧵

@carbonbrief.org has a solid piece summarising the current state of play on the cause of the blackout. Some nice quotes and covers many of the factors that have come up in the past few days. Of course, the main takeaway remains that we won't know for sure until the ongoing investigations are done.

In "Colluding Against Environmental Regulation," we study collusion among firms against imperfectly monitored environmental regulation, applied to a case study about automakers and diesel vehicle emissions. With Jorge Alé-Chilet, Cuicui Chen, and Mathias Reynaert. @reveconstudies.bsky.social

I've been a journalist for 25+ years and I'm not sure I've witnessed as much wilful (and v likely coordinated) disinformation from certain corners of the UK media than over past few days. Sun, Mail and Telegraph have been truly awful - and seemingly shameless www.theguardian.com/business/202...

But wait... There's more! Did those who received cash get lazier and work less? Nope! "We find no evidence that people love doing nothing. This stereotype is not supported by research on basic income – or any other research."

BREAKING from @science.org: The Trump admin is seeking to kill nearly all climate research at NOAA, its climate science agency. Its near-final budget proposal would end all NOAA research labs, academic institutes, and regional climate centers. And it wants to fully end the NOAA Research division.

📢 Post-doc in economics, energy, history of economic thought, at the wonderful @cired.bsky.social lab, in the team led by the great Antoine Missemer, @antmis1.bsky.social. Apply or share the information! Details here ⬇️ emploi.cnrs.fr/Offres/CDD/U...

Le Parlement étudie la suppression des Zones à Faibles Emissions à partir d’ajd. Ces zones visent à améliorer la qualité de l’air en ville en y interdisant les véhicules les plus polluants Que dit la recherche en économie de l’efficacité des ZFE, sur la base de l’expérience allemande ? Un 🧵 (1/N)

Historian Naomi Oreskes highlights how US elected officials knew about climate change since the 1960s, yet misinformation campaigns, similar to those used by the tobacco industry, have delayed action. Read @climateconnections.bsky.social full article here: yaleclimateconnections.org/2025/04/our-...

🐦 Just accepted 🐦 in JAERE: "Infrastructure, Institutions, and the Conservation of Biodiversity in India" by Raahil Madhok (@raamadhok.bsky.social) Read it here: www.journals.uchicago.edu/doi/10.1086/... #EconSky 📈 📉

Do tariffs work? Catch up with our podcast from earlier this year with @pjtheeconomist.bsky.social and @peterlevell.bsky.social on the economic consequences of tariffs, why governments use them, and whether they actually achieve their intended goals. 🎧 Listen here:

🤩🤩 Paper finally out in the AER! With my co-authors (incl. @bluebery-planterose.com & @s-stantcheva.bsky.social) we surveyed climate attitudes in 20 countries covering 72% of global emissions. In brief, people want ambitious, global, and fair climate policies. A 🧵⬇️ www.aeaweb.org/articles?id=...

Teaching the political economy of the green transition this term, I used, and learned from, some amazing 𝐜𝐥𝐢𝐦𝐚𝐭𝐞 𝐩𝐨𝐥𝐢𝐜𝐲 𝐭𝐨𝐨𝐥𝐬 𝐚𝐧𝐝 𝐭𝐫𝐚𝐜𝐤𝐞𝐫𝐬. A 🧵 on some of the best. Further suggestions are very welcome, I'll add them below.

**5 DAYS LEFT TO APPLY** to our Paris summer school "Environmental Data Collection and Analysis for the Social Sciences" ❗We moved the deadline to April 1st❗ Looking forward to reading your application!

Right on cue, the WSJ reports oil and gas lobbyists are asking Congress to grant Big Oil immunity against climate lawsuits. www.wsj.com/business/ene...

Spoiler: oui, à 256€ la tonne de CO2, il est rentable d'investir dans une pompe à chaleur. Heureuse d'avoir contribué modestement à cette commission sur la valeur de l'action pour le climat, valeur utilisée pour les décisions publiques d'investissement, mais aussi apparemment par qq entreprises !

That's really bad. EPA classification of GHG as harmful pollutants is pretty much the only way the US government can be held accountable on reducing GHG emissions. It's the legal framework justifying every piece of US emission regulation since 2009, on coal plants, passenger vehicles, etc.

Bonsoir, Le 3ème Plan national d'adaptation au changement climatique (PNACC3) vient d'être publié, après plusieurs années de concertations et consultations : www.ecologie.gouv.fr/actualites/g... Voici l'avis du @hc-climat.bsky.social qui s'est auto-saisi : 1/...

A gentle reminder: we have failed to enact the single most ambitious, best-case scenario for emissions. All of the rest remain up for grabs: and we will absolutely 'fail to stop' these as well, if we widely adopt the fatalist framing

The EU Tax Observatory Young Researcher Award is back! 🏆 🚀 PhD students & postdocs, submit your research on tax evasion, wealth taxation, multinationals, illicit flows & more. 🗓️ Submit your paper by April 6, 2025. 👉 How to apply? Details here: www.taxobservatory.eu/event/young-...

“If anybody needed a clearer sign that this administration gives not a single damn for the people of the United States, this is it” E.P.A. Plans to Close All Environmental Justice Offices www.nytimes.com/2025/03/11/c...

💥Excited💥 for a Workshop on Environmental & Health Economics! Join us in Rome on June 23-24, 2025. 👉🏻Keynotes by Matt Neidell and myself. ⏰ Deadline: April 15. Organized by Università Cattolica & GSSI Supported by: Eaere, Iaere. #Econsky

Défendons les sciences face aux nouveaux obscurantismes 1/... www.lemonde.fr/sciences/art...

📣To all PhD students in environmental econ: apply to our (free!) E4C summer school on "Environmental Data Collection and Analysis for the Social Sciences" co-organized by @crestumr.bsky.social When? 2-6 June 2025 Where? Palaiseau near Paris Info: www.ip-paris.fr/en/news/e4c-... Apply by 25 Apr!

While the (quasi-) experimental methods increase credibility of causal results, there are two related concerns that make studies hard to replicate: 1. decline in reporting of null results 2. increase in use of private sector data a mini thread 🧵based on work with @trfetzer.com

I don’t know exactly what the response to this is, but I find it terrifying.

🚨 Now CCN-official 🚨 Trump issues stop-work-order to NASA chief scientist #KateCalvin, who is also co-chair of the IPCC's working group in charge of the next assessment on climate change mitigation. This is brutal, on so many levels. edition.cnn.com/2025/02/21/c...

Hey, #EconSky, I'm looking for a paper comparing the economics of climate transition to the costs of globalisation, namely : a positive impact on most agents' welfare, but a highly negative impact on a few sectors and jobs. Hence the resistance to transition measures. Does it ring a bell ?

The new US Energy Secretary Chris Wright spoke a lot about the German energy transition ("Energiewende") in his first speech to the DOE staff. But most of the numbers and facts he used to denounce it were wrong or misleading. I corrected some of them in this article: table.media/en/climate/f...

🚀 Call for Papers: CREST-IFAU Workshop on Labor Market Policy Evaluation 📊 🗓 June 12-13, 2025 – Paris (Palaiseau) 🎤 Keynote: Stéphane Bonhomme (University of Chicago) 📅 Submit by: March 10, 2025 📩 Send papers (PDF) to: [email protected] @ifau.bsky.social

Dans cette tribune pour @theconversation.com, B. Michaillat démontre que l'idée d'un sentiment de "submersion migratoire" en France ne repose sur aucune réalité factuelle. Contrairement aux idées reçues, les Européens sont de plus en plus pro-immigration (1/4) theconversation.com/pres-de-70-d...