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coletteheald.bsky.social
Colette Heald
@coletteheald.bsky.social
4.9K followers 300 following 63 posts

Canadian 🇨🇦, ETH professor🇨🇭, atmospheric chemist, researcher, educator, wanderer, and wonderer

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Colette L. Heald is a Canadian-born professor at ETH Zurich who is an expert in atmospheric chemistry.

Source: Wikipedia
Environmental science 51%
Geology 19%
Posts Replies Media Videos

Reposted by Colette L. Heald

frankconniff.bsky.social
Frank Conniff @frankconniff.bsky.social · 1d
Thanks to Chuck Schumer, the assembly line at the Lucy/Charlie Brown football meme factory has broken down. Folks are advised to look for other metaphors until service can be restored.

coletteheald.bsky.social
Colette Heald @coletteheald.bsky.social · 3d
I approve of pavement vigilantism! It’s chaos out there! www.theguardian.com/lifeandstyle...
The ‘pavement vigilante’: why Cameron Roh is naming and shaming bad walking etiquette
He films people breaking his self-created ‘laws’ of street decorum and posts the videos online – with many viewers expressing their gratitude. So watch out if you’re rushing along on your phone or whe...
www.theguardian.com

Reposted by Colette L. Heald

aaronwherry.bsky.social
Aaron Wherry @aaronwherry.bsky.social · 4d
I imagine that Brits trying to understand a fractured party system could look at Canadian political history.

Though recent Canadian history might suggest that party consolidation (at least under FPTP) is inevitable.

www.theguardian.com/commentisfre...
Britain’s two-party politics is fragmenting: what unintended consequences await? | Andy Beckett
On one hand, no more safe seats or long careers could mean less complacency. On the other, no big parties could mean greater corporate influence, says Guardian columnist Andy Beckett
www.theguardian.com

Reposted by Katharine Hayhoe, Colette L. Heald, Sebastian Karcher , and 1 more

sportsandsuffering.bsky.social
Sara @sportsandsuffering.bsky.social · 13d
I regret to inform everyone that my pedantic brain couldn’t let me live until I knew whether or not dodger blue and blue jays blue are the same blue. They are ONE PANTONE NUMBER APART.
a graphic showing the pantone numbers for the two core colors of the toronto blue jays. they are skydome blue (pantone 293) and Stieb Navy (pantone 282) a hat and canvas tote with the pantone number for Dodger Blue (294 C)

Reposted by Colette L. Heald

davidmoscrop.com
David Moscrop @davidmoscrop.com · 14d
It’s okay, Jays. You’ll get ‘em in game four, which starts ten minutes from now.

Reposted by Colette L. Heald

davidho.bsky.social
David Ho @davidho.bsky.social · 16d
Nēnē says hello

Reposted by Colette L. Heald

canadianpaintings.bsky.social
Canadian Paintings @canadianpaintings.bsky.social · 21d
Diindiisi - Blue Jay
Luke Swinson ~ Anishinaabe
n.d.

Reposted by Colette L. Heald, Vinayak Sinha

vtengineering.bsky.social
Virginia Tech College of Engineering @vtengineering.bsky.social · 21d
Could a “smoke alarm” for airborne contaminants monitor and improve the quality of the air indoors? (Where Americans spend 90 percent of their time!)

An interdisciplinary research team led by @linseymarr.bsky.social will create such a system that could cut respiratory illnesses by 25 percent. 👏
Up to $40 million in federal funding fuels research to revolutionize clean indoor air
With the contract from the Advanced Research Projects Agency for Health, an interdisciplinary research team led by Virginia Tech and Linsey Marr will create a “smoke alarm” for airborne contaminants t...
news.vt.edu

Reposted by Colette L. Heald, Lesley A. Hall, Jussi T. Eronen , and 13 more

emanuelmaiberg.bsky.social
Emanuel Maiberg @emanuelmaiberg.bsky.social · 25d
wikipedia's data shows that AI is siphoning traffic away from the site, which is a danger to its sustainability. ironically Wikipedia is more important than ever to users who want reliable information instead of slop, and to AI companies that need it for training data www.404media.co/wikipedia-sa...
Wikipedia Says AI Is Causing a Dangerous Decline in Human Visitors
“With fewer visits to Wikipedia, fewer volunteers may grow and enrich the content, and fewer individual donors may support this work.”
www.404media.co

Reposted by Colette L. Heald

canadianpaintings.bsky.social
Canadian Paintings @canadianpaintings.bsky.social · 26d
Autumn Trees, Mulmur Twp - Ontario
Alan C. Collier
1987

Reposted by Colette L. Heald

kostyack.bsky.social
John Kostyack @kostyack.bsky.social · 29d
The petrochemical industry is expanding production of PFAS in response to the data center boom, betting that the tech industry's toxic chemical releases face no serious prospect of regulation under the Trump regime. But campaigners know that the states have a powerful role.
Advocates raise alarm over Pfas pollution from datacenters amid AI boom
Tech companies’ use of Pfas gas at facilities may mean datacenters’ climate impact is worse than previously thought
www.theguardian.com

Reposted by Colette L. Heald

canadianpaintings.bsky.social
Canadian Paintings @canadianpaintings.bsky.social · Oct 10
Northern Lake
Lawren Harris
1923

Reposted by Scott C. Doney, Colette L. Heald

pgourevitch.bsky.social
Philip Gourevitch @pgourevitch.bsky.social · Oct 10
MIT showing the way

www.nytimes.com/2025/10/10/u...
M.I.T. Rejects a White House Offer for Special Funding Treatment
www.nytimes.com

Reposted by Colette L. Heald

jessekroll.bsky.social
Jesse Kroll @jessekroll.bsky.social · Oct 10
Happy to see that MIT just rejected Trump's “Compact for Academic Excellence in Higher Education":

orgchart.mit.edu/letters/rega...

"With respect, we cannot support the proposed approach to addressing the issues facing higher education."
Regarding the Compact | MIT Organization Chart
orgchart.mit.edu

Reposted by Colette L. Heald

reclean.bsky.social
ReCLEAN @reclean.bsky.social · Oct 6
📢 Excited to announce Prof. Juliane L. Fry from Wageningen University & Research, Netherlands as our next speaker for the #ReCLEAN Seminar Series.

📅 Tuesday, October 14 at 1 pm (13:00 CEST) via Zoom: epfl.zoom.us/j/6916007109...

💡 More info about ReCLEAN: reclean.epfl.ch

Reposted by Anne Applebaum, Michael Cox, Anna O. Law , and 45 more

kojamf.bsky.social
KOJAMF🤘🖤🤘 @kojamf.bsky.social · Oct 5
Dr. Jane Goodall filmed an interview with Netflix in March 2025 that she understood would only be released after her death.

Reposted by Colette L. Heald

ethz.ch
ETH Zurich @ethz.ch · Oct 2
"If we leave writing to AI chatbots, we won't just lose a craft and the skills. Because writing is more than that. Writing is thinking", argues Giorgio Iemmolo, Director of the Language Centre at ETH and the University of Zurich.
ethz.ch/en/news-and-...

What is your opinion?
Giorgio Iemmolo, is learning possible without writing?
AI chatbots are taking over writing for students and researchers. Linguist Giorgio Iemmolo explains what we are jeopardising in the interest of efficiency gains.
ethz.ch

Reposted by Teja Tscharntke, Colette L. Heald, Dariusz Galasiński

wineecon.bsky.social
American Association of Wine Economists AAWE @wineecon.bsky.social · Oct 1
Main Grape Varieties in Alsace, 1968-2022. Riesling's amazing surge from #3 to the undisputed #1. And Sylvaner's abysmal decline from #1 to #7.

Reposted by Colette L. Heald, Lesley A. Hall, R. M. Wilson , and 2 more

london.gov.uk
Mayor of London, Sadiq Khan @london.gov.uk · Oct 1
184 years earlier than predicted, London has met the legal limits for toxic NO2 for the first time.

This historic milestone proves that bold action like expanding ULEZ works, protecting children’s health and giving millions cleaner air to breathe.
London Ulez reduced nitrogen dioxide to legal limit, mayor says
The mayor of London says the fall in airborne toxins is due to the Ultra low emission zone expansion.
www.bbc.co.uk

Reposted by Scott C. Doney, Rob Marchant, Jesse H. Kroll , and 1 more

coletteheald.bsky.social
Colette Heald @coletteheald.bsky.social · Sep 30
We have a new PhD project to study ozone formation from fires. If interested in atmospheric chemistry, fires, living in Zurich, and studying at ETH, consider applying here: jobs.ethz.ch/job/view/JOP...
PhD Position in Atmospheric Chemistry
jobs.ethz.ch

Reposted by Colette L. Heald

canadianpaintings.bsky.social
Canadian Paintings @canadianpaintings.bsky.social · Sep 26
Sherbrooke St. W., Montreal
John Little
1963

Reposted by Colette L. Heald

leapstc.bsky.social
LEAP-STC @leapstc.bsky.social · Sep 26
🎉🎉 CONGRATULATIONS to Dave Lawrence @ncar-ucar.bsky.social @ncar-cgd.bsky.social for being honored as a 2025 @agu.org Fellow! 🎉🎉

Dave is a CESM Chief Scientist at NSF NCAR, and serves as LEAP's NCAR Model Development Liaison. Well done + well-deserved, Dave!

Reposted by Jesse H. Kroll, Colette L. Heald

matthewgoss.bsky.social
Matthew Goss @matthewgoss.bsky.social · Sep 24
Our paper examining the chemical conditions of past chamber studies is out! This work explores assumptions made when creating SOA parametrizations based on laboratory data, and can hopefully point to ways of improving model representation of SOA.
pubs.acs.org/doi/full/10....
Re-Examining Chemical Conditions of Past Chamber Studies of Secondary Organic Aerosol Formation
The simulation of secondary organic aerosol (SOA) in 3D models generally relies on measurements made in laboratory chamber studies. However, many of the laboratory studies that underpin the aerosol pa...
pubs.acs.org

Reposted by Doerthe Tetzlaff, Colette L. Heald, Benjamin I. Cook

agu.org
AGU (American Geophysical Union) @agu.org · Sep 24
🏆 AGU is excited to announce the recipients of the 2025 Union Medals, Awards and Prizes; Fellows; and Section Awards and Lectures. Honorees will be recognized this December in New Orleans, LA at #AGU25.

🎖️👉 View the 2025 Honorees: buff.ly/eQSk1xJ

Reposted by Shannon Vallor, A. E. Dessler, Jesse M. Shapiro , and 13 more

susankayequinn.bsky.social
Susan Kaye Quinn is Writing Solarpunk 🌞🌱 @susankayequinn.bsky.social · Sep 24
They've lost the 9yos
JA Westenberg @Daojoan@mastodon.social My 9 year old and his classmates have started using “that’s AI” to mean “I don’t believe you.” Me: we’re having dinosaur meat for dinner Kiddo: that’s AI Sep 24, 2025, 07:36 AM

Reposted by Colette L. Heald, Julia Lynch, Rachel S. Franklin , and 1 more

mcsweeneys.net
McSweeney's @mcsweeneys.net · Sep 22
IT IS TIME.
It’s Decorative Gourd Season, Motherfuckers
First published on October 9, 2009, this classic by Colin Nissan is our most-read article of all time. We’re celebrating the 16th anniversary of th...
buff.ly

Reposted by Colette L. Heald

eumetsat.int
EUMETSAT @eumetsat.int · Sep 19
📣 Calling all atmospheric composition enthusiasts!

Together with @ecmwf.int and @esa.int, we’re providing open-to-all online training webinars on satellite observations and modelling, focusing on aerosols.

🗓️1-2 & 9-10 October

Learn more atmostraining.info
Register eumetsat.zoom.us/meeting/regi...

coletteheald.bsky.social
Colette Heald @coletteheald.bsky.social · Sep 19
A great new position in my department. Please share with folks who may be interested!
krismcneill.bsky.social Kris McNeill @krismcneill.bsky.social · Sep 19
The deadline (Sep 30) is coming up! If you are interested in joining ETH as an Assistant Professor of Soil Chemistry, please consider applying!
krismcneill.bsky.social Kris McNeill @krismcneill.bsky.social · Jul 11
We are looking for an Assistant Professor (tenure track) in the area of Soil Chemistry. Please spread the word! Application deadline is September 30.

ethz.ch/en/the-eth-z...

Reposted by Colette L. Heald

krismcneill.bsky.social
Kris McNeill @krismcneill.bsky.social · Sep 19
The deadline (Sep 30) is coming up! If you are interested in joining ETH as an Assistant Professor of Soil Chemistry, please consider applying!
krismcneill.bsky.social Kris McNeill @krismcneill.bsky.social · Jul 11
We are looking for an Assistant Professor (tenure track) in the area of Soil Chemistry. Please spread the word! Application deadline is September 30.

ethz.ch/en/the-eth-z...
Assistant Professor (Tenure Track) of Soil Chemistry
ethz.ch

Reposted by Colette L. Heald

ethz.ch
ETH Zurich @ethz.ch · Sep 18
At its meeting of 17 and 18 September 2025 and upon application of Joël Mesot, President of ETH Zurich, the ETH Board appointed eight professors. The Board also awarded the title of "Professor of Practice" once.

More info:
Eight professors appointed
At its meeting of 17 and 18 September 2025 and upon application of Joël Mesot, President of ETH Zurich, the ETH Board appointed eight professors. The Board also awarded the title of
ethz.ch