Sarah Dorner
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sarahdorner.bsky.social
Sarah Dorner
@sarahdorner.bsky.social
2.1K followers 1.1K following 620 posts
Génie de l’environnement. Polytechnique Montréal.

Google Scholar : https://scholar.google.ca/citations?user=S2HhkvEAAAAJ&hl=en
Posts Replies Media Videos
Reposted by Sarah Dorner
matthieudugal.bsky.social
Catherine Morency de Poly Montréal rapportait récemment que les Québécois dépensent 44 milliards CAN$ annuellement pour l'auto-solo. Selon HEC, chaque dollar dépensé par un automobiliste représente 1,44$ en coûts sociaux. Pour 1$ investi dans le transport en commun le coût social est de 38 sous.
jfrheault.bsky.social Jean-François Rheault @jfrheault.bsky.social · 3h
On parle souvent du coût du café par jour mais ceci-ci est mon préféré.

www.lapresse.ca/affaires/fin...
November 30, 2025 at 4:34 PM
sarahdorner.bsky.social
Cet article décrit assez bien notre expérience. Le groupe d'amies de ma fille est un bon mélange de « Québécoises » et de jeunes « issus de l'immigration ». Son amie m'avait dit, « l'école nous aime (pour les photos démontrant la mixité), mais ne nous aime pas (pour la diversité linguistique) ».
November 30, 2025 at 3:45 PM
sarahdorner.bsky.social
Most ridiculous government legislation ever. Here's my simple solution for the folks who don't want to eat kosher food in the hospital: provide seasonings with microcrustaceans. They naturally occur in some municipal tap waters. Sprinkle some on and voilà! the food is no longer kosher. Easy peasy.
"Government-funded institutions — such as hospitals, private schools and daycares — that exclusively offer food catering to religious diets would be required to expand their menus to include other foods as well. For example, the Jewish General Hospital, which currently serves exclusively kosher meals, would be required to offer non-kosher options. Article content “They can serve a kosher meal, but they will have to serve some other food, too, to enlarge the offer,” Roberge said. Article content In practice, it would require an entirely separate kitchen for an establishment to be able to serve both kosher and non-kosher food, as the former has strict preparation requirements."
November 29, 2025 at 4:55 PM
Reposted by Sarah Dorner
derekkunsken.bsky.social
Cool news. @jayodjick.bsky.social talks about the news that indigenous stories and literature will become a mandatory part of the Quebec school curriculum. www.cbc.ca/listen/live-...
© CBC/Radio-Canada 2025. All rights reserved.
www.cbc.ca
November 29, 2025 at 12:54 PM
sarahdorner.bsky.social
J'ai appris un mot de mon beau-frère allemand qui décrit bien le sentiment englobant l'état actuel de l'échelle locale jusqu'à l'échelle l'internationale : « Weltschmerz ».
marieplourde.bsky.social Marie Plourde @marieplourde.bsky.social · 2d
Ce matin sur Atateken, j'avais le choix entre la délinquance en roulant sur le piste fermée ou rouler en plein milieu de la voie et compromettre ma sécurité.
November 28, 2025 at 3:11 PM
sarahdorner.bsky.social
In Montréal, science in the form of Civil Engineering took a hit with the removal of Catherine Morency from the board of directors of the STM, replaced by an Ensemble Montréal partisan. She was gracious in her words, but colleagues like me are not impressed. Catherine has always been non partisan.
madhupai.bsky.social Madhu Pai, MD, PhD @madhupai.bsky.social · 2d
Scientists must learn to join larger pro-democracy and people's movements, coalitions. Our science training may not have prepared us for such work, but we can no longer sit in the safety of our labs and expect the world to get better

My book review @thelancet.com

www.thelancet.com/journals/lan...
From doing science to saving science
Science and scientists are under assault. From denial of vaccines to climate change, political leaders are increasingly sacrificing democracy as well as science on the altar of populism and authoritar...
www.thelancet.com
November 28, 2025 at 12:16 PM
Reposted by Sarah Dorner
ianmosby.bsky.social
As @rjjago.bsky.social points out in this excellent editorial, this is not a victimless crime. And King has profited greatly from ethnic fraud: he has made an entire career from speaking for (and not just writing about) Indigenous peoples.

This is probably the most important point though:
Look, for example, at Daniels v. Canada. It's a 2016 Supreme Court decision, and one of the most consequential cases in Aboriginal Law, which ruled that Métis and non-Status Indians are "Indians" as defined by the constitution. In paragraph 23 of that decision, they cite King's "The Inconvenient Indian," and his approving comments about being more expansive about the definition of "Indian." But when a Pretendian (unwitting or not) is influencing Supreme Court decisions about Indigenous Peoples, they must be called out and stopped. Because no matter how well you do it, how nice you are, if you're not actually Native, you lack the lived experience that's needed to make informed choices about what change this country needs to see.
November 26, 2025 at 6:15 PM
Reposted by Sarah Dorner
noovo.info
Les Inuit du Nunavik font preuve de résilience face aux problèmes d'accès à l'eau.
www.noovo.info/nouvelle/les...
Les Inuit du Nunavik font preuve de résilience face aux problèmes d'accès à l'eau
Les communautés autochtones du Nunavik font preuve d'une résilience impressionnante face aux difficultés d'accès à l'eau. Il n'est pas rare qu'ils n'aient plus d'eau potable à la maison ou que leur ré...
www.noovo.info
November 24, 2025 at 10:16 AM
Reposted by Sarah Dorner
leastreliski.bsky.social
Omg Paris parle de nous 💅💅💅
November 22, 2025 at 12:18 AM
Reposted by Sarah Dorner
cyclefunmontreal.bsky.social
Outremont has won the race to be the first Ensemble Montreal borough/arrondissement to remove a bike lane.
New mayor Caroline Braun didn't waste any time deciding that citizens using active transport to travel safely in her town are citizens whose safety she doesn't value.
#CarsCarsCars #SafeStreets
Pendant l’hiver | Outremont retire une piste cyclable pour ramener du stationnement
L’arrondissement d’Outremont s’est défendu jeudi de vouloir démanteler une piste cyclable. À court terme, la bande protégée de l’avenue Lajoie sera retirée pour permettre le retour du stationnement de...
www.lapresse.ca
November 21, 2025 at 4:17 PM
sarahdorner.bsky.social
Do kids bike to school on Lajoie in winter? Yes! Photo taken 30 minutes ago on my walk along Lajoie to get to a meeting.
1 adult and 2 kids’ bikes including a helmet locked up in front of école Guy Drummond.
November 21, 2025 at 5:37 PM
sarahdorner.bsky.social
Pour des entrevues en français, il y a des experts à @polymtl.bsky.social qui connaissent bien le sujet.
thierryaaron.bsky.social Dr. Aaron Thierry @thierryaaron.bsky.social · 9d
'Iran’s capital must be moved because the country “no longer has a choice,” President Masoud Pezeshkian said on Thursday in remarks carried by state media, warning that severe ecological strain has made Tehran impossible to sustain'

#Iran 🇮🇷
Iran president says capital move now a necessity as water crisis deepens
Iran’s capital must be moved because the country “no longer has a choice,” President Masoud Pezeshkian said on Thursday in remarks carried by state media, warning that severe ecological strain has mad...
www.iranintl.com
November 21, 2025 at 4:20 PM
Reposted by Sarah Dorner
nicolasmarcotte.bsky.social
Au dernier conseil d'arrondissement d'Outremont, un citoyen demande ce qui adviendra de la sécurisation sur Lajoie. Réponse vague. 5 minutes plus tard, la mairesse vote le retrait de la piste cyclable, sans plus d’explications. Opaque et sans consultation vous dites?
November 20, 2025 at 11:34 PM
Reposted by Sarah Dorner
leastreliski.bsky.social
Ultimate goal, tellement prioriser les autos que la planète se réchauffe assez pour éliminer la neige complètement.
ledevoir.com Le Devoir @ledevoir.com · 9d
Cela rajoutera des cases de stationnement, plus rares à cause du déneigement, explique la mairesse de l’arrondissement.
Une piste cyclable éliminée pour tout l’hiver à Outremont
www.ledevoir.com
November 20, 2025 at 9:38 PM
Reposted by Sarah Dorner
danielthibault.bsky.social
C'est si difficile d'avancer. C'est si facile de reculer.

www.lapresse.ca/actualites/g...
Pendant l’hiver | Outremont retire une piste cyclable pour ramener du stationnement
L’arrondissement d’Outremont s’est défendu jeudi de vouloir démanteler une piste cyclable. À court terme, la bande protégée de l’avenue Lajoie sera retirée pour permettre le retour du stationnement de...
www.lapresse.ca
November 20, 2025 at 9:45 PM
sarahdorner.bsky.social
I often wondered about this. J’ai enfin la réponse.
tuthanhha.bsky.social Tu Thanh Ha @tuthanhha.bsky.social · 10d
I hadn't given it much thoughts until now but I just learned that there is a reason why in most French-speaking countries 'eighty' is 'quatre-vingts' -- literally 'four twenties' -- and that reason is the ghostly presence of the ancient Gauls' base 20 counting system.
Excerpt from a book: “Though the conquered cities of Gaul embraced Latin as their language of administration, Gaulish survived in the countryside, and it left its imprint in French. The French way of writing ‘eighty’ as‘four-twenties' (quatre-vingts), is a relic of Gaulish vigesimal counting in the otherwise decimal Roman system.”
November 20, 2025 at 1:03 PM
Reposted by Sarah Dorner
kirkwoodlab.bsky.social
NEW PAPER: Nearly 50 years of water quality monitoring shows improvements and remaining challenges for a delisted Great Lakes Area of Concern. www.sciencedirect.com/science/arti...
@iaglr.bsky.social @otwomen.bsky.social @ontariotechscience.bsky.social
November 17, 2025 at 6:42 PM
Reposted by Sarah Dorner
petergleick.bsky.social
The current #water crisis in Iran is the most severe on the planet at the moment, threatening not just the people but the legitimacy of the government.

www.theguardian.com/world/2025/n...
Climate crisis or a warning from God? Iranians desperate for answers as water dries up
As rainy season fails to bring relief, authorities try cloud seeding – while others across the country pray for a miracle
www.theguardian.com
November 16, 2025 at 4:06 PM
sarahdorner.bsky.social
My daughter is going to check it out now. She loves this stuff.
November 16, 2025 at 2:58 PM
sarahdorner.bsky.social
One of Iran’s greatest exports is water experts. Some are cited in this article about the water crisis unfolding there today. www.nbcnews.com/world/iran/i...
Taps run dry as water crisis forces Iran to consider evacuating its capital
A prolonged drought along with years of overconsumption, an inefficient agricultural sector and mismanagement have led to the problem, analysts say.
www.nbcnews.com
November 16, 2025 at 2:26 PM
sarahdorner.bsky.social
💯
Belvédère Van Horne
November 15, 2025 at 7:55 PM
sarahdorner.bsky.social
Is it ever nice to see the sign for the airport. My brother-in-law figured out how to cycle there to catch a flight, but taking the train is far more practical. 😁
taras-grescoe.com 𝚃𝚊𝚛𝚊𝚜 𝙶𝚛𝚎𝚜𝚌𝚘𝚎 🚇 @taras-grescoe.com · 15d
Very open design. Deep station, but it feels light and airy—like the Elizabeth Line platforms in central #London.
November 15, 2025 at 1:09 PM
sarahdorner.bsky.social
I'm so happy they mentioned Trois-Rivières as having invested in green infrastructure to reduce overflows! Here's our paper in collaboration with Trois-Rivières: iwaponline.com/bgs/article/...
November 14, 2025 at 3:00 PM
sarahdorner.bsky.social
Nice. Félicitations à Yoshua!
nature.com Nature @nature.com · 18d
Computer scientist Yoshua Bengio has become the first person to have their work cited more than one million times on the search engine Google Scholar

go.nature.com/4oywvUV
‘Godfather of AI’ becomes first person to hit one million citations
The milestone makes machine-learning trailblazer Yoshua Bengio the most cited researcher on Google Scholar.
go.nature.com
November 12, 2025 at 12:38 PM
sarahdorner.bsky.social
I missed it by a day. Spectacular. Too much cloud cover in Montréal tonight
katharinehayhoe.com Katharine Hayhoe @katharinehayhoe.com · 18d
I am on my way home to Toronto and the aurorae are absolutely phenomenal.

If you are anywhere in the northern half of the continent, get outside and look up! Or better still, put your camera on a 10 second exposure and point it up.
Gorgeous red and green aurorae over a lighted city below. Gorgeous picture of red and green aurorae over a lighted city below.
November 12, 2025 at 3:35 AM