Jesse Kroll
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jessekroll.bsky.social
Jesse Kroll
@jessekroll.bsky.social
680 followers 420 following 140 posts

atmospheric chemist at MIT; also does other stuff sometimes

Videos
Environmental science 45%
Geology 17%
Posts Replies Media Videos

Reposted by Meredith Broussard, Jesse H. Kroll, Wolfgang Crämer , and 13 more

davelevitan.bsky.social
Dave Levitan @davelevitan.bsky.social · 23h
Google at its peak was basically the best information retrieval system in human history and they and every competitor decided going from there to “you didn’t want answers you wanted half-assed auto-complete 80%-wrong hallucinations” in a few years was the right idea

Reposted by Ashish Arora, Jesse H. Kroll, Scott L. Greer , and 3 more

carlquintanilla.bsky.social
Carl Quintanilla @carlquintanilla.bsky.social · 1d
> @samsteindc.bsky.social

jessekroll.bsky.social
Jesse Kroll @jessekroll.bsky.social · 2d
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)

Reposted by Jesse H. Kroll

davelevitan.bsky.social
Dave Levitan @davelevitan.bsky.social · 2d
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

Reposted by Peter Thorne, Jesse H. Kroll, Alan Richardson , and 4 more

nicholasgrossman.bsky.social
Nicholas Grossman @nicholasgrossman.bsky.social · 3d
America putting most of its eggs in the generative AI basket, China going hard into green tech. When history looks back on this period, someone is going to look awfully stupid.

Reposted by Jesse H. Kroll, Laurent Pech, Alan Richardson , and 4 more

mmasnick.bsky.social
Mike Masnick @mmasnick.bsky.social · 4d
The party that promised "free speech on campus" has made sure there can be no free speech on campuses.
littlebadger.bsky.social Darcie Little Badger @littlebadger.bsky.social · 5d
This week, I withdrew from a speaking engagement at a public university because they sent me a list of prohibited “words & concepts.” I will not humor this censorship. It does a disservice to the stories I’m discussing & the audience, who deserve unfettered access to information & conversation.
“Prohibited words and concepts: Equity, diversity, & inclusion; anti-racism; Bias; Critical race theory; implicit bias; oppression; intersectionality; prohibited discriminatory practices; racial privilege; promoting stereotypes based on personal identity characteristics.”

Reposted by Peter Thorne, Brendan Nyhan, Jesse H. Kroll , and 20 more

littlebadger.bsky.social
Darcie Little Badger @littlebadger.bsky.social · 5d
This week, I withdrew from a speaking engagement at a public university because they sent me a list of prohibited “words & concepts.” I will not humor this censorship. It does a disservice to the stories I’m discussing & the audience, who deserve unfettered access to information & conversation.
“Prohibited words and concepts: Equity, diversity, & inclusion; anti-racism; Bias; Critical race theory; implicit bias; oppression; intersectionality; prohibited discriminatory practices; racial privilege; promoting stereotypes based on personal identity characteristics.”

Reposted by Joel A. Thornton, Jesse H. Kroll, Vinayak Sinha

dbm.bsky.social
Dylan B. Millet @dbm.bsky.social · 5d
Postdoc opening: airborne NH3 measurements

Join our team! The UMN atmospheric chemistry group is recruiting a postdoc to collect and analyze airborne NH3 measurements as part of NASA FarmFlux.

See z.umn.edu/aw67 for details, & contact Julieta ([email protected]) and I ([email protected]) with questions!
PostdocAd-FarmFlux
Postdoctoral Associate: aircraft-based measurements of atmospheric ammonia Join our team! The atmospheric chemistry group at the University of Minnesota (UMN) seeks applications for a Postdoctoral A...
z.umn.edu

Reposted by Elizabeth Warren, Elizabeth Saunders, David Brady , and 22 more

theharvardcrimson.bsky.social
The Harvard Crimson @theharvardcrimson.bsky.social · 6d
#BREAKING: Former Harvard President Lawrence H. Summers will immediately leave his role as an instructor at Harvard while the University investigates his ties to child sex trafficker Jeffrey Epstein.

Dhruv T. Patel and Cam N. Srivastava report.
Summers Will Not Finish Semester of Teaching as Harvard Investigates Epstein Ties | News | The Harvard Crimson
Former Harvard President Lawrence H. Summers will immediately leave his role as an instructor at Harvard while the University investigates his ties to child sex trafficker Jeffrey E. Epstein.
www.thecrimson.com

Reposted by Joel A. Thornton, Dylan B. Millet, Jesse H. Kroll , and 1 more

coletteheald.bsky.social
Colette Heald @coletteheald.bsky.social · 6d
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

Reposted by Richard S.J. Tol, Jesse H. Kroll

kentremendous.bsky.social
Ken Tremendous @kentremendous.bsky.social · 7d
A guy makes ONE tiny mistake (has a years-long friendship with the world's worst sex trafficker; brags about sexually harassing colleagues; is racist; says women are stupid) and his whole LIFE is blown up (does slightly fewer speaking engagements; keeps teaching at #1 university)??!?!?!?!?!
karenattiah.bsky.social Karen Attiah @karenattiah.bsky.social · 7d
So Harvard is keeping this guy, but Claudine Gay had to step down over ginned up plagiarism accusations and bad-faith accusations of anti-Semitism.

Got it.
rimaanabtawi.bsky.social Rima I Anabtawi @rimaanabtawi.bsky.social · 7d
Larry Summers tells @theharvardcrimson.bsky.social
he’s stepping back from all public commitments in light of his messages with Epstein, saying he is “deeply ashamed” and hopes “to rebuild trust and repair relationships.”

He will continue teaching.

www.thecrimson.com/article/2025...

Reposted by Jonathan A. Eisen, Jesse H. Kroll, Rosemary A. Joyce , and 3 more

karenattiah.bsky.social
Karen Attiah @karenattiah.bsky.social · 7d
So Harvard is keeping this guy, but Claudine Gay had to step down over ginned up plagiarism accusations and bad-faith accusations of anti-Semitism.

Got it.
rimaanabtawi.bsky.social Rima I Anabtawi @rimaanabtawi.bsky.social · 7d
Larry Summers tells @theharvardcrimson.bsky.social
he’s stepping back from all public commitments in light of his messages with Epstein, saying he is “deeply ashamed” and hopes “to rebuild trust and repair relationships.”

He will continue teaching.

www.thecrimson.com/article/2025...

Reposted by Cas Mudde, Anna O. Law, Kim L. Scheppele , and 48 more

aaronparnas.bsky.social
Aaron Parnas @aaronparnas.bsky.social · 9d
NEW: Epstein survivors release the most powerful PSA I have ever seen.

Make this go viral so every member of the House of Representatives sees it.

Reposted by Jesse H. Kroll

mayorwu.boston.gov
Office of Mayor Michelle Wu 吳弭 @mayorwu.boston.gov · 9d
Boston ❤️ Nova Scotia

jessekroll.bsky.social
Jesse Kroll @jessekroll.bsky.social · 9d
So we've been working through tariff-exemption paperwork so we can purchase a Swiss-manufactured instrument. The tariff (and hence the instrument cost) just went down by $13K ... because the Swiss basically bribed Trump. Yay?
anneapplebaum.bsky.social Anne Applebaum @anneapplebaum.bsky.social · 10d
To negotiate a trade deal with the President of the United States, the Swiss government arrived with a "special Rolex desktop clock" and "a 1-kilogram personalized gold bar"

www.axios.com/2025/11/14/t...
How to lobby Trump with Swiss precision: gifts, gold and gab
How the Swiss broke a diplomatic logjam on tariffs by arriving with tributes fit for a king.
www.axios.com

Reposted by Jesse H. Kroll

theophite.bsky.social
rev. howard arson @theophite.bsky.social · 9d
larry summers is genuinely, deeply misogynist in a way which is not even captured by his public contempt for women

Reposted by Joe R. Feagin, Jesse H. Kroll, Steve Peers

dieworkwear.bsky.social
derek guy @dieworkwear.bsky.social · 9d
please don't do this. MAGA hats are made from an acrylic blend, which will release toxic chemicals when set on fire, potentially harming you and downwind woodland creatures
The Patriotic Blonde on Twitter writes: "People are posting this all over social media. What a sad end to something we all worked so hard for. I never thought it would end this way." Attached are four photos of people burning their MAGA hats.

Reposted by Cas Mudde, Daniela Gabor, Lisa W. Fazio , and 35 more

econmarshall.bsky.social
Marshall Steinbaum @econmarshall.bsky.social · 10d
The emails have Summers reporting to Epstein about his attempts to date a Harvard economics student & to hit on her during a seminar she was giving.

Reposted by Stephen M. Walt, Brendan Nyhan, Jesse H. Kroll , and 11 more

anneapplebaum.bsky.social
Anne Applebaum @anneapplebaum.bsky.social · 10d
To negotiate a trade deal with the President of the United States, the Swiss government arrived with a "special Rolex desktop clock" and "a 1-kilogram personalized gold bar"

www.axios.com/2025/11/14/t...
How to lobby Trump with Swiss precision: gifts, gold and gab
How the Swiss broke a diplomatic logjam on tariffs by arriving with tributes fit for a king.
www.axios.com

Reposted by Anna O. Law, Jesse H. Kroll, Rosemary A. Joyce , and 3 more

dgraham.bsky.social
David A. Graham @dgraham.bsky.social · 10d
It’s useful for people of my generation to be reminded that this wasn’t that long ago. Ruby Bridges isn’t just still alive—she’s only 71, not ancient!
derfbackderf.bsky.social Derf Backderf @derfbackderf.bsky.social · 10d
65 years ago on Nov. 14, little Ruby Bridges was escorted into an all-white elementary school in New Orleans. Norman Rockwell, renowned for blissful depictions of Americana, did this remarkable painting for Look magazine. Printed as a double page, over-size spread, it's his masterpiece.
Norman Rockwell painting, depicting little Roby Bridges being escorted into a school by Feds. Racial slurs are pained on the wall behind here. A thrown tomato lies on the ground.

Reposted by Jesse H. Kroll, Ian Campbell, Smith , and 5 more

laurahelmuth.bsky.social
Laura Helmuth @laurahelmuth.bsky.social · 10d
Nuzzi's fawning coverage of the sociopathic conspiracy crank she was having an affair with aided his rise to political power, which he is using to perpetrate the worst intentional public health catastrophe of our unnecessarily shortened lifetimes, and THAT is the STORY.

Reposted by Wouter Poortinga, Jesse H. Kroll, Martin Paul Eve , and 5 more

xkcd.com
Randall Munroe @xkcd.com · 11d
Car Size

xkcd.com/3167/
4-panel vertical comic. (1) 100 Years Ago [two people standing next to bicycle with small car nearby] PERSON 1: It’s too dangerous riding a bike with these cars around. I should get a car, too. (2) 50 Years Ago [two people between smaller car and bigger car] PERSON 2 with short hair: Small cars are less safe in collisions with larger vehicles, so I should get a bigger one. (3) Today [two people between big car and even bigger car] PERSON 1: Everyone has huge SUVs now. If I don’t get the biggest one, I’m putting my family at risk. (4) Soon [two people next to large armored car with spiked clubs attached] PERSON 2: If I don’t install more whirling spike clubs, I’ll be destroyed by all the other drivers who...

Reposted by Jesse H. Kroll

jakeyeston.bsky.social
Jake Yeston @jakeyeston.bsky.social · 12d
“a shining example for all of us to emulate”

www.harvardmagazine.com/2022/10/jhj-...
Portraying Larry Summers | Harvard Magazine
Celebrating the twenty-seventh president—and assessing his legacy
www.harvardmagazine.com

Reposted by Christian Odendahl, Rebecca Solnit, Jesse H. Kroll , and 17 more

chrislhayes.bsky.social
Chris Hayes @chrislhayes.bsky.social · 13d
Something absolutely perfect about Larry Summers riffing about the scourge of woke cancel culture being unfair to predatory men in a friendly email to his pal JEFFREY EPSTEIN.

Reposted by Jesse H. Kroll, Silvia Secchi, Helen Jefferson Lenskyj , and 1 more

angus.bsky.social
Angus Johnston @angus.bsky.social · 13d
Today is a good day to remember, and to say, that the #MeToo movement was right, and was righteous, and has been vindicated over and over again. There was no overreach. There was no excess. There was no they-went-too-far.

So much work remains to be done.

jessekroll.bsky.social
Jesse Kroll @jessekroll.bsky.social · 14d
New air cleaner paper! @airqing.bsky.social challenged an oxidation-based cleaner with an air freshener, and saw tons of chemistry. In particular, ethanol (a common ingredient in cleaning products, and ubiquitous indoors) oxidized to form acetaldehyde and formaldehyde.
pubs.acs.org/doi/10.1021/...
Changes in Volatile Organic Compound Composition from an Oxidation-Based Air Cleaner
Air cleaning devices, or “air cleaners”, have the potential to improve indoor air by decreasing levels of air pollutants, including volatile organic compounds (VOCs), in indoor environments. Many comm...
pubs.acs.org

Reposted by Jesse H. Kroll

ryanenos.bsky.social
Ryan Enos @ryanenos.bsky.social · 17d
Yes, having grown up in the 1990s when this was the prime dark fantasy of the NRA, this is really something to behold. From a social science perspective, it's another piece of evidence that most of what we call ideology is really just identity politics.
jackmurphyrgr.bsky.social Jack Murphy @jackmurphyrgr.bsky.social · 17d
It still blows my mind that the lawless government paramilitary stormtroopers from every 1990's conspiracy theory have arrived and all the don't tread on me 1776 people just pulled a fade.
royalpratt.bsky.social Gregory Pratt @royalpratt.bsky.social · 18d
Video of Greg Bovino in Waukegan, with residents following and shouting, “You a bitch!” Taken by Armando Sanchez

Reposted by Jesse H. Kroll, Zen Faulkes

jmelville.science
jo melville @jmelville.science · 17d
please don't @ me like "actually cerium is unique among the lanthanides for its +4 oxidation state"

⚗️🧪 #chemsky
A simplified, stylized periodic table of elements where large groups of elements are color-coded. Hydrogen (H) is isolated. Group 1 (alkali metals) is labeled "BOOM!". Group 2 (alkaline earth metals) is "rocks & sand & glass & stuff". The transition metals are split into sections: "the foundations of human civilization," "catalysts & superalloys," "ooh, shiny!," "expensive," and "heavy metal poisoning." Technetium (Tc) is boxed separately. The p-block is also grouped: "chips (not tasty kind)," "organic chemistry," and "useful for poisoning your husband." The noble gases are labeled "n o p e." The heaviest elements in the s-block and p-block are labeled "cancer 2" and "cancer alley," with the exception of Bismuth. The transactinides are labeled "more physics than chemistry." The bottom f-block (lanthanides and actinides) is also labeled. The lanthanides are "except for Pm these are all basically the same element," with Promethium (Pm) boxed. The actinides are labeled "rxtors & bombs" and "you probably work at Los Alamos."

Reposted by Jesse H. Kroll, Ryan Enos

jackmurphyrgr.bsky.social
Jack Murphy @jackmurphyrgr.bsky.social · 17d
It still blows my mind that the lawless government paramilitary stormtroopers from every 1990's conspiracy theory have arrived and all the don't tread on me 1776 people just pulled a fade.
royalpratt.bsky.social Gregory Pratt @royalpratt.bsky.social · 18d
Video of Greg Bovino in Waukegan, with residents following and shouting, “You a bitch!” Taken by Armando Sanchez

Reposted by Jesse H. Kroll, Martin Paul Eve, Fred

celestelabedz.bsky.social
Celeste Labedz @celestelabedz.bsky.social · 18d
In case anyone is wondering if Watson was really THAT bad, @lpachter.bsky.social compiled a list of quotes that are absolutely not for the faint of heart.
liorpachter.wordpress.com/2018/05/18/j...