Colette Heald
@coletteheald.bsky.social
Canadian 🇨🇦, ETH professor🇨🇭, atmospheric chemist, researcher, educator, wanderer, and wonderer
Reposted by Colette Heald
The Feeling You Haven't Had in a Long Time
Steve Driscoll
2021
Steve Driscoll
2021
January 27, 2026 at 10:01 AM
The Feeling You Haven't Had in a Long Time
Steve Driscoll
2021
Steve Driscoll
2021
Reposted by Colette Heald
Tbf, this is probably the actual best thing in 2026 so far… youtu.be/btqHDhO4h10?...
Mark Carney's full speech at the World Economic Forum
YouTube video by National Post
youtu.be
January 21, 2026 at 7:00 PM
Tbf, this is probably the actual best thing in 2026 so far… youtu.be/btqHDhO4h10?...
Reposted by Colette Heald
Macron apparently has an eye condition that requires him to look cool as hell.
bsky.app/profile/mark...
bsky.app/profile/mark...
Heureux d’avoir rencontré le président Macron à Davos, aujourd’hui.
Le Canada et la France uniront toujours leurs voix pour défendre la souveraineté, l’intégrité territoriale et la paix.
Le Canada et la France uniront toujours leurs voix pour défendre la souveraineté, l’intégrité territoriale et la paix.
January 20, 2026 at 3:02 PM
Macron apparently has an eye condition that requires him to look cool as hell.
bsky.app/profile/mark...
bsky.app/profile/mark...
Reposted by Colette Heald
The worst climate and weather news you’ll see today.
Update: A bid to safeguard the National Center for Atmospheric Research failed Thursday after the Senate passed a spending package without an amendment to save the center's funding. eos.org/research-and...
Trump Administration Plans to Break Up NCAR - Eos
The Trump administration is planning to dismantle the National Center for Atmospheric Research, one of the world’s leading climate and Earth science research laboratories, according to a statement fro...
eos.org
January 16, 2026 at 3:26 PM
The worst climate and weather news you’ll see today.
Reposted by Colette Heald
Whaaat?! The EPA's cost-benefit analysis of air pollution regulations can only consider costs to businesses but not health benefits?! This is nonsense.
GIFT ARTICLE: www.nytimes.com/2026/01/12/c...
GIFT ARTICLE: www.nytimes.com/2026/01/12/c...
E.P.A. to Stop Considering Lives Saved When Setting Rules on Air Pollution
www.nytimes.com
January 13, 2026 at 1:05 AM
Whaaat?! The EPA's cost-benefit analysis of air pollution regulations can only consider costs to businesses but not health benefits?! This is nonsense.
GIFT ARTICLE: www.nytimes.com/2026/01/12/c...
GIFT ARTICLE: www.nytimes.com/2026/01/12/c...
Reposted by Colette Heald
Winter Schoolhouse
Maud Lewis
c. 1958
Maud Lewis
c. 1958
January 7, 2026 at 10:01 AM
Winter Schoolhouse
Maud Lewis
c. 1958
Maud Lewis
c. 1958
Reposted by Colette Heald
After reviewing nearly 200 applications from prospective grad students and postdocs over the past few months for a couple different 🧪⚒️ postings, here are some tips, at least as they apply to North American positions. I hope they help future applicants. Share with your networks. 🧵
January 4, 2026 at 2:17 PM
After reviewing nearly 200 applications from prospective grad students and postdocs over the past few months for a couple different 🧪⚒️ postings, here are some tips, at least as they apply to North American positions. I hope they help future applicants. Share with your networks. 🧵
Reposted by Colette Heald
Home for Christmas
Maud Lewis
c. 1958
Maud Lewis
c. 1958
December 25, 2025 at 12:30 PM
Home for Christmas
Maud Lewis
c. 1958
Maud Lewis
c. 1958
Reposted by Colette Heald
NCAR and UCAR have released a statement. NSF has not provided any guidance to UCAR or NCAR leadership about this whole situation. news.ucar.edu/133054/ucar-...
UCAR statement on reports that NSF NCAR could be dismantled | NCAR & UCAR News
news.ucar.edu
December 17, 2025 at 5:12 AM
NCAR and UCAR have released a statement. NSF has not provided any guidance to UCAR or NCAR leadership about this whole situation. news.ucar.edu/133054/ucar-...
As someone who both loves the New Yorker and is learning German this does my head in. 🚫 to diaeresis
November 30, 2025 at 7:50 PM
As someone who both loves the New Yorker and is learning German this does my head in. 🚫 to diaeresis
Reposted by Colette Heald
Americans don't understand the big deal about electric kettles because we're on 120 VAC. Once we see how fast water boils at 230 VAC, there's no going back.
November 30, 2025 at 5:39 PM
Americans don't understand the big deal about electric kettles because we're on 120 VAC. Once we see how fast water boils at 230 VAC, there's no going back.
My last MIT student, Joe, explored what controls the ozone formed in fire plumes. His paper is out today in ACP. Happy Thanksgiving! acp.copernicus.org/articles/25/...
Investigating fire-induced ozone production from local to global scales
Abstract. Tropospheric ozone (O3) production from wildfires is highly uncertain; previous studies have identified both production and loss of O3 in fire-influenced air masses. To capture the total ozo...
acp.copernicus.org
November 28, 2025 at 10:10 AM
My last MIT student, Joe, explored what controls the ozone formed in fire plumes. His paper is out today in ACP. Happy Thanksgiving! acp.copernicus.org/articles/25/...
Reposted by Colette Heald
PhD Opportunity on Volatiles from Plants & Climate Change 🌍🧪
Join @fz-juelich.de to explore how future climate scenarios impact plant emissions and atmospheric chemistry using mass spectrometry measurements. Learn more: www.hitec-graduate-school.de/call2025/ --> Project 4! #PhDOpportunity
Join @fz-juelich.de to explore how future climate scenarios impact plant emissions and atmospheric chemistry using mass spectrometry measurements. Learn more: www.hitec-graduate-school.de/call2025/ --> Project 4! #PhDOpportunity
HITEC | HITEC Fellows Call 2025/2026
www.hitec-graduate-school.de
November 27, 2025 at 5:15 PM
PhD Opportunity on Volatiles from Plants & Climate Change 🌍🧪
Join @fz-juelich.de to explore how future climate scenarios impact plant emissions and atmospheric chemistry using mass spectrometry measurements. Learn more: www.hitec-graduate-school.de/call2025/ --> Project 4! #PhDOpportunity
Join @fz-juelich.de to explore how future climate scenarios impact plant emissions and atmospheric chemistry using mass spectrometry measurements. Learn more: www.hitec-graduate-school.de/call2025/ --> Project 4! #PhDOpportunity
Reposted by Colette Heald
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)
- 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)
This is a VERY long piece about solar geoengineering that starts, scientifically speaking, badly, but gets better, but still has a few issues.
The Strange and Totally Real Plan to Blot Out the Sun and Reverse Global Warming
A 25-person startup is developing technology to block the sun and turn down the planet’s thermostat. The stakes are huge — and the company and its critics say regulations need to catch up.
www.politico.com
November 24, 2025 at 1:14 AM
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)
- 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)
Reposted by Colette Heald
Haida Raven
Bill Reid ~ Haida
1972
Bill Reid ~ Haida
1972
November 23, 2025 at 3:30 PM
Haida Raven
Bill Reid ~ Haida
1972
Bill Reid ~ Haida
1972
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
Session AS3.2
meetingorganizer.copernicus.org
November 19, 2025 at 8:11 AM
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
Reposted by Colette Heald
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.
November 10, 2025 at 12:21 AM
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.
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
November 8, 2025 at 8:08 AM
I approve of pavement vigilantism! It’s chaos out there! www.theguardian.com/lifeandstyle...
Reposted by Colette Heald
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...
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
November 6, 2025 at 5:36 PM
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...
Though recent Canadian history might suggest that party consolidation (at least under FPTP) is inevitable.
www.theguardian.com/commentisfre...
Reposted by Colette Heald
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.
October 29, 2025 at 2:18 AM
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.
Reposted by Colette Heald
It’s okay, Jays. You’ll get ‘em in game four, which starts ten minutes from now.
October 28, 2025 at 6:53 AM
It’s okay, Jays. You’ll get ‘em in game four, which starts ten minutes from now.
Reposted by Colette Heald
Reposted by Colette Heald
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. 👏
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
October 20, 2025 at 8:17 PM
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. 👏
An interdisciplinary research team led by @linseymarr.bsky.social will create such a system that could cut respiratory illnesses by 25 percent. 👏
Reposted by Colette Heald
Diindiisi - Blue Jay
Luke Swinson ~ Anishinaabe
n.d.
Luke Swinson ~ Anishinaabe
n.d.
October 20, 2025 at 11:01 PM
Diindiisi - Blue Jay
Luke Swinson ~ Anishinaabe
n.d.
Luke Swinson ~ Anishinaabe
n.d.
Reposted by Colette Heald
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
October 17, 2025 at 1:15 AM
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...