François Marechal
francoismarechal.bsky.social
François Marechal
@francoismarechal.bsky.social
Professor in Ecole Polytechnique fédérale de Lausanne (EPFL), industrial process and energy systems engineering. Think systems ! Posts are my opinion
My research group : http://ipese.epfl.ch
Reposted by François Marechal
Recommended read: Columnist @georgemonbiot.bsky.social wrote in the Guardian about the “vast black hole” of climate data in some parts of the world – which he says is a “gift” to climate deniers.
There’s a catastrophic black hole in our climate data – and it’s a gift to deniers | George Monbiot
Climate sceptics tell us that more people die of extreme cold than extreme heat. What’s the truth? asks Guardian columnist George Monbiot
buff.ly
November 23, 2025 at 11:32 AM
Reposted by François Marechal
#WolffBites: Ultra-processed foods are very profitable so they get produced and increasingly eaten despite serious dangers to our health. Another contradiction between how capitalism works and what people need. The system is the problem.

www.bbc.com/news/article...
Ultra-processed food is global health threat, experts warn
It is increasing our risk of a range of chronic diseases, including obesity and depression, a major review says.
www.bbc.com
November 20, 2025 at 11:12 PM
Reposted by François Marechal
The Lancet's series on Ultra-Processed Foods and Human Health is a landmark. The hard part, always, is to shape policy to match the science. www.thelancet.com/infographics...
November 20, 2025 at 6:12 PM
Reposted by François Marechal
This new paper in the Lancet shows the power of social network analysis and data visualization to convey complex connections among the global political influence of the ultra processed foods industry.

I recommend reading this entire paper: www.thelancet.com/journals/lan...
November 20, 2025 at 1:27 PM
Reposted by François Marechal
Wastewater surveillance is a powerful #OneHealth tool for fighting antimicrobial resistance #AMR.

It detects trends early, informs public health, and protects ecosystems.

Let’s scale environmental monitoring for a safer future: www.unep.org/topics/ocean... #WAAW
November 24, 2025 at 5:21 AM
Reposted by François Marechal
We saw it with big tobacco, we saw it with the fossil fuels industry. When their own internal research showed the harm from their product, the defunded the research and attacked independent researchers coming to the very same conclusions.
#ScienceUnderSiege
Meta halted internal research that purportedly showed (young) people who stopped using Facebook became less depressed and anxious, according to an unredacted legal filing released on Friday. www.cnbc.com/2025/11/23/m...
Meta halted internal research suggesting social media harm, court filing alleges
Meta is alleged to have halted internal research suggesting social media harm, according to court documents.
www.cnbc.com
November 24, 2025 at 1:59 AM
Reposted by François Marechal
Interesting-looking new study finding lower electric vehicle adoption in areas with higher vote for the far-right AfD in Germany, independently from other factors
doi.org/10.1016/j.er...
November 23, 2025 at 9:18 AM
Are we going to transport back the batteries to china or do it in our countries ?
Battery recycling is expected to become a cornerstone of the global energy transition as electric vehicles (EVs) and other battery-powered technologies become more widespread.

China holds a dominant position in both the pre-treatment and refining stages of battery recycling.
November 23, 2025 at 12:06 PM
Reposted by François Marechal
Why Ireland is giving its artists money with no strings attached to create - column by @judewebber.bsky.social www.ft.com/content/15a6...
November 17, 2025 at 3:31 PM
Reposted by François Marechal
This kind of thinking has resulted in this trajectory.
November 17, 2025 at 5:14 AM
Reposted by François Marechal
All politicians on the global scene are in denial.
They think, for whatever reason, that they can negotiate with physics.

It's bizarre.
It's dangerous

Here is another example.

www.theguardian.com/...
Have courage to create fossil fuel phaseout roadmap at Cop30, Brazilian minister urges
Marina Silva says contentious plan would be ‘ethical answer’ to climate crisis but does not commit Brazil to it
www.theguardian.com
November 17, 2025 at 4:46 AM
Reposted by François Marechal
Not hard to make profit margins over 30% if you don't pay people who produce the content you sell, and their employers pay you for access
What is the most profitable industry in the world, this side of the law? Not oil, not IT, not pharma.

It's *scientific publishing*.

We call this the Drain of Scientific Publishing.

Paper: arxiv.org/abs/2511.04820
Background: doi.org/10.1162/qss_...

Thread @markhanson.fediscience.org.ap.brid.gy 👇
November 13, 2025 at 9:37 PM
Seems that the believes of politicians differ from the facts @pssuisse.ch @lesvertssuisses.bsky.social
NEW: The first two years of Massachusetts' millionaire tax has raised $3 billion more than expected.

And rather than driving the rich away, IPS researchers found that the number of millionaires has *increased.*

Tax the rich. Greg Ryan in @bloomberg.com:
Millionaire Tax That Inspired Mamdani Fuels $5.7 Billion Haul in Massachusetts
A millionaire levy in Massachusetts that New York City mayoral frontrunner Zohran Mamdani holds up as a model for taxing the rich has generated $3 billion more in revenue than expected without forcing...
www.bloomberg.com
November 15, 2025 at 9:21 AM
Reposted by François Marechal
“The rise in high-fronted SUVs poses a clear and growing threat to public safety, especially for children,” states the report. “With no benefit to society, it’s time for lawmakers at all levels to act.” Via @carltonreid.com in @forbes.com.

Cap SUV/truck hood heights. And ban unsafe designs.
EU Must Cap SUV Hood Heights Urges Report. Crash Test Body Says Not As Simple As That
Higher fronts on cars significantly increase the death rate when pedestrians and cyclists are struck, says new report. EuroNCAP says more complex than that.
www.forbes.com
November 15, 2025 at 7:18 AM
Reposted by François Marechal
Let me just repost this: even old people don't get maintenance MRIs. He had this because something went really wrong.
Love 2 go to the doctor and not know what body part they’re analyzing
November 15, 2025 at 3:27 AM
Why not organise ourselves:
- Research communities set-up #openaccess publishing system based on open source framework operated by libraries
- researchers share and review their contributions to science
- IT department develop an open source framework for transparent citation and rating system
The irony here is that academics don’t just write the articles for free—we also referee and edit for them for free. Something is deeply broken.

“New Zealand's eight universities spent $30-million a year on journal licences and about half of that sum went to Elsevier.

www.rnz.co.nz/news/nationa...
Universities in 'battle of the century' with journal publisher Elsevier
One New Zealand university told its staff all universities in New Zealand and Australia would "lose some degree of access" to the publisher's 1600 titles from the start of next year.
www.rnz.co.nz
November 15, 2025 at 9:13 AM
Reposted by François Marechal
🚨Techno-optimistic scientists take fewer climate actions

In a new preprint, @colognaviktoria.bsky.social, @maiensachis.bsky.social, @jmbh.bsky.social & I examine techno-optimism among 9,199 scientists and how it relates to their civic engagement and lifestyle choices🧵

🔗 Link: tinyurl.com/hh94huzv
November 14, 2025 at 9:20 AM
Reposted by François Marechal
From more heatwaves, extreme weather events, droughts, and floods, the evidence is clear: the world is feeling the impacts of the #ClimateCrisis.

As world leaders gather at #COP30, to accelerate #ClimateAction, get all the latest updates here: https://ow.ly/IRNq50Xqkkj
November 12, 2025 at 5:24 AM
China’s EV Market Is Imploding

flip.it/itgV6M
China’s EV Market Is Imploding
Beijing’s grand ambitions threaten to take down the global car industry.
flip.it
November 12, 2025 at 6:28 AM
Reposted by François Marechal
Y'all need Jesus, happy Sunday
November 9, 2025 at 9:18 PM
This makes me thing of the swiss constitution :

« Aware of common achievements and of their duty to assume their responsibilities towards future generations »

Will they defend their actions in front of our God and their children ?
November 9, 2025 at 3:31 PM
Reposted by François Marechal
Opinion
Nicholas Kristof

"Trump Aid Cuts Kill More Christians Than Jihadists Do"

www.nytimes.com/2025/11/08/o...
November 9, 2025 at 2:56 PM
On peut être indépendant et neutre ou indépendant et neutre…

Le F-35, cet avion hyperconnecté sous très étroite surveillance américaine www.rts.ch/info/monde/2...
Le F-35, cet avion hyperconnecté sous très étroite surveillance américaine | RTS
Conçu pour collecter et traiter de grandes quantités d'informations, le F-35, futur avion de combat de la Suisse, fonctionne en réseau via un dispositif géré depuis les Etats-Unis. Un certain degré d'...
www.rts.ch
November 7, 2025 at 5:02 PM