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Colette Heald

@coletteheald.bsky.social

Canadian πŸ‡¨πŸ‡¦, ETH professorπŸ‡¨πŸ‡­, atmospheric chemist, researcher, educator, wanderer, and wonderer

4,949 Followers  |  296 Following  |  64 Posts  |  Joined: 13.10.2023  |  3.5272

Latest posts by coletteheald.bsky.social on Bluesky

Another terrifying article about Stardust, with (what I think is) some new info:
- they claim they'll finally release info on their secret particles starting in early 2026
- they plan a first atmospheric test in 2027
- they've been funding academic research (with one PI named)

24.11.2025 01:14 β€” πŸ‘ 6    πŸ” 2    πŸ’¬ 3    πŸ“Œ 0
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Haida Raven
Bill Reid ~ Haida
1972

23.11.2025 15:30 β€” πŸ‘ 205    πŸ” 46    πŸ’¬ 1    πŸ“Œ 2
Session AS3.2

If you work on sources and impacts of VOCs (biogenic or anthropogenic) from measurement to modeling perspectives please submit an abstract to our atmospheric organics session at #EGU26! Our invited speakers are @dbm.bsky.social and @jacquirickard.bsky.social See you in Vienna! tinyurl.com/55vda8u7

19.11.2025 08:11 β€” πŸ‘ 11    πŸ” 7    πŸ’¬ 0    πŸ“Œ 1

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.

10.11.2025 00:21 β€” πŸ‘ 549    πŸ” 97    πŸ’¬ 11    πŸ“Œ 1
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The β€˜pavement vigilante’: why Cameron Roh is naming and shaming bad walking etiquette He films people breaking his self-created β€˜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...

I approve of pavement vigilantism! It’s chaos out there! www.theguardian.com/lifeandstyle...

08.11.2025 08:08 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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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

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...

06.11.2025 17:36 β€” πŸ‘ 8    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
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 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)

a hat and canvas tote with the pantone number for Dodger Blue (294 C)

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.

29.10.2025 02:18 β€” πŸ‘ 4228    πŸ” 921    πŸ’¬ 111    πŸ“Œ 109

It’s okay, Jays. You’ll get β€˜em in game four, which starts ten minutes from now.

28.10.2025 06:53 β€” πŸ‘ 2294    πŸ” 262    πŸ’¬ 29    πŸ“Œ 6
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NΔ“nΔ“ says hello

25.10.2025 16:29 β€” πŸ‘ 145    πŸ” 6    πŸ’¬ 6    πŸ“Œ 0
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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 β€œsmoke alarm” for airborne contaminants t...

Could a β€œsmoke 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. πŸ‘

20.10.2025 20:17 β€” πŸ‘ 102    πŸ” 36    πŸ’¬ 3    πŸ“Œ 7
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Diindiisi - Blue Jay
Luke Swinson ~ Anishinaabe
n.d.

20.10.2025 23:01 β€” πŸ‘ 259    πŸ” 72    πŸ’¬ 4    πŸ“Œ 5
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Wikipedia Says AI Is Causing a Dangerous Decline in Human Visitors β€œWith fewer visits to Wikipedia, fewer volunteers may grow and enrich the content, and fewer individual donors may support this work.”

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...

17.10.2025 01:15 β€” πŸ‘ 7805    πŸ” 3778    πŸ’¬ 93    πŸ“Œ 345

More data centres -> more F-gases -> more climate impact + more TFA #PFAS

15.10.2025 12:00 β€” πŸ‘ 4    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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Autumn Trees, Mulmur Twp - Ontario
Alan C. Collier
1987

15.10.2025 09:03 β€” πŸ‘ 123    πŸ” 29    πŸ’¬ 0    πŸ“Œ 0
America’s brain drain

America’s brain drain

No words

30.05.2025 12:23 β€” πŸ‘ 2196    πŸ” 859    πŸ’¬ 93    πŸ“Œ 165
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Northern Lake
Lawren Harris
1923

10.10.2025 23:02 β€” πŸ‘ 178    πŸ” 33    πŸ’¬ 0    πŸ“Œ 1
Regarding the Compact | MIT Organization Chart

Happy to see that MIT just rejected Trump's β€œCompact 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."

10.10.2025 14:12 β€” πŸ‘ 11    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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M.I.T. Rejects a White House Offer for Special Funding Treatment

MIT showing the way

www.nytimes.com/2025/10/10/u...

10.10.2025 16:06 β€” πŸ‘ 61    πŸ” 15    πŸ’¬ 0    πŸ“Œ 0
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πŸ“’ Excited to announce Prof. Juliane L. Fry from Wageningen University & Research, Netherlands as our next speaker for the #ReCLEAN Seminar Series.

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

πŸ’‘ More info about ReCLEAN: reclean.epfl.ch

06.10.2025 14:23 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

A prayer more than an interview. Amen.

05.10.2025 15:26 β€” πŸ‘ 210    πŸ” 68    πŸ’¬ 3    πŸ“Œ 1
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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.

"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?

02.10.2025 08:07 β€” πŸ‘ 20    πŸ” 13    πŸ’¬ 1    πŸ“Œ 3
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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.

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.

01.10.2025 11:00 β€” πŸ‘ 779    πŸ” 192    πŸ’¬ 24    πŸ“Œ 32
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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.

01.10.2025 16:43 β€” πŸ‘ 10    πŸ” 6    πŸ’¬ 1    πŸ“Œ 0
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PhD Position in Atmospheric Chemistry

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...

30.09.2025 08:08 β€” πŸ‘ 31    πŸ” 27    πŸ’¬ 0    πŸ“Œ 1
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Sherbrooke St. W., Montreal
John Little
1963

26.09.2025 16:05 β€” πŸ‘ 102    πŸ” 26    πŸ’¬ 0    πŸ“Œ 0
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πŸŽ‰πŸŽ‰ CONGRATULATIONS to Dave Lawrence @ncar-ucar.bsky.social @ncar-cgd.bsky.social for being honored as a 2025 @agu.org Fellow! πŸŽ‰πŸŽ‰

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

26.09.2025 14:02 β€” πŸ‘ 21    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0
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πŸ† 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.

πŸŽ–οΈπŸ‘‰ View the 2025 Honorees: buff.ly/eQSk1xJ

24.09.2025 16:16 β€” πŸ‘ 14    πŸ” 5    πŸ’¬ 2    πŸ“Œ 3

The kids, as they often are, are all right

24.09.2025 18:12 β€” πŸ‘ 560    πŸ” 74    πŸ’¬ 4    πŸ“Œ 0
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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...

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....

24.09.2025 17:43 β€” πŸ‘ 10    πŸ” 5    πŸ’¬ 1    πŸ“Œ 1
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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...

IT IS TIME.

22.09.2025 18:19 β€” πŸ‘ 1646    πŸ” 593    πŸ’¬ 20    πŸ“Œ 99

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