After my training as a geologist—notably on paleontology, sedimentology, and paleoenvironments, with field work too—I became an organic geochemist, so I would fall next to the « geochemists » point, with a shift towards a 4th « fossil seekers » pole—I use molecular fossils in the frame of my work.
February 17, 2026 at 6:47 AM
After my training as a geologist—notably on paleontology, sedimentology, and paleoenvironments, with field work too—I became an organic geochemist, so I would fall next to the « geochemists » point, with a shift towards a 4th « fossil seekers » pole—I use molecular fossils in the frame of my work.
🌋 Award-winning geochemist and volcanologist Terry Plank of Lamont-Doherty Earth Observatory studies the phenomena shaping the Earth's crust and how they affect the world's volcanoes. #IDWGIS Learn more:
https://lamont.columbia.edu/news/women-science-geochemist-terry-plank
https://lamont.columbia.edu/news/women-science-geochemist-terry-plank
February 13, 2026 at 8:51 PM
🌋 Award-winning geochemist and volcanologist Terry Plank of Lamont-Doherty Earth Observatory studies the phenomena shaping the Earth's crust and how they affect the world's volcanoes. #IDWGIS Learn more:
https://lamont.columbia.edu/news/women-science-geochemist-terry-plank
https://lamont.columbia.edu/news/women-science-geochemist-terry-plank
Scaling climate solutions takes more than technology.
In a Q&A, geochemist Noah Planavsky discusses why trust and transparency from private companies are essential to making carbon dioxide removal work at scale.
In a Q&A, geochemist Noah Planavsky discusses why trust and transparency from private companies are essential to making carbon dioxide removal work at scale.
Radical Transparency Is Required to Scale Carbon Dioxide Removal — a Q&A with Professor Noah Planavsky
YCNCC News spoke with Professor Noah Planavsky about the importance of transparency to the responsible scaling of carbon dioxide removal.
naturalcarboncapture.yale.edu
February 12, 2026 at 10:07 PM
Scaling climate solutions takes more than technology.
In a Q&A, geochemist Noah Planavsky discusses why trust and transparency from private companies are essential to making carbon dioxide removal work at scale.
In a Q&A, geochemist Noah Planavsky discusses why trust and transparency from private companies are essential to making carbon dioxide removal work at scale.
However, it does seem some blue states, such as CA, NY, and WA, had significantly higher-than-median (4.6) rates of terminations per R1 uni. Disclaimer: termination data is from GrantWatch, and I am a geochemist, not a social or political scientist. Make of the data what you will!
February 12, 2026 at 8:30 PM
However, it does seem some blue states, such as CA, NY, and WA, had significantly higher-than-median (4.6) rates of terminations per R1 uni. Disclaimer: termination data is from GrantWatch, and I am a geochemist, not a social or political scientist. Make of the data what you will!
Scientists have spent decades looking for this site not only to preserve space history but also because the lander can still provide crucial data, says Alexander Basilevsky, a geochemist at the Russian Academy of Sciences.
www.smithsonianmag.com/smart-news/s...
www.smithsonianmag.com/smart-news/s...
Scientists Say They May Have Found a Long-Lost Lunar Lander—the First to Successfully Touch Down on the Moon 60 Years Ago
Data from a NASA lunar orbiter has helped researchers deduce two potential locations for a defunct Soviet spacecraft called Luna 9
www.smithsonianmag.com
February 12, 2026 at 5:18 PM
Scientists have spent decades looking for this site not only to preserve space history but also because the lander can still provide crucial data, says Alexander Basilevsky, a geochemist at the Russian Academy of Sciences.
www.smithsonianmag.com/smart-news/s...
www.smithsonianmag.com/smart-news/s...
If only we knew sooner!
Oh wait…The term "global warming" was coined by geochemist Wallace Broecker in his 1975 Science article, "Climatic Change: Are We on the Brink of a Pronounced Global Warming?".
Oh wait…The term "global warming" was coined by geochemist Wallace Broecker in his 1975 Science article, "Climatic Change: Are We on the Brink of a Pronounced Global Warming?".
February 11, 2026 at 11:54 PM
If only we knew sooner!
Oh wait…The term "global warming" was coined by geochemist Wallace Broecker in his 1975 Science article, "Climatic Change: Are We on the Brink of a Pronounced Global Warming?".
Oh wait…The term "global warming" was coined by geochemist Wallace Broecker in his 1975 Science article, "Climatic Change: Are We on the Brink of a Pronounced Global Warming?".
💧 Water is abundant in Bangladesh, but not always in the form needed. On Feb 11 12pm ET, join us for Freshwater and the Sustainability of Bangladesh's Delta, a virtual conversation with LDEO geochemist Lex van Geen & geophysicist Michael Steckler, hosted by Arthur Lerner-Lam: https://bit.ly/4qoJ3hN
February 10, 2026 at 5:49 PM
💧 Water is abundant in Bangladesh, but not always in the form needed. On Feb 11 12pm ET, join us for Freshwater and the Sustainability of Bangladesh's Delta, a virtual conversation with LDEO geochemist Lex van Geen & geophysicist Michael Steckler, hosted by Arthur Lerner-Lam: https://bit.ly/4qoJ3hN
Much like a geochemist i should be allowed to teach on the subject.
February 3, 2026 at 11:41 PM
Much like a geochemist i should be allowed to teach on the subject.
A century of hair samples proves leaded gas ban worked
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed a lead-dating method and used it to calculate the age of the Earth (4.55 billion years), based on analysis of the…
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed a lead-dating method and used it to calculate the age of the Earth (4.55 billion years), based on analysis of the…
A century of hair samples proves leaded gas ban worked
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed a lead-dating method and used it to calculate the age of the Earth (4.55 billion years), based on analysis of the Canton Diablo meteorite. And he soon became a leading advocate for banning leaded gasoline and the “leaded solder” used in canned foods.
toolcome.com
February 3, 2026 at 7:17 AM
A century of hair samples proves leaded gas ban worked
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed a lead-dating method and used it to calculate the age of the Earth (4.55 billion years), based on analysis of the…
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed a lead-dating method and used it to calculate the age of the Earth (4.55 billion years), based on analysis of the…
A century of hair samples proves leaded gas ban worked
https://www.newsbeep.com/us/445930/
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed…
https://www.newsbeep.com/us/445930/
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed…
A century of hair samples proves leaded gas ban worked - United States News Beep
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed a lead-dating method and used it
www.newsbeep.com
February 3, 2026 at 5:06 AM
A century of hair samples proves leaded gas ban worked
https://www.newsbeep.com/us/445930/
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed…
https://www.newsbeep.com/us/445930/
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed…
A century of hair samples proves leaded gas ban worked
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed a lead-dating method and used it to calculate the age of the Earth (4.55 billion years), based on analysis of the…
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed a lead-dating method and used it to calculate the age of the Earth (4.55 billion years), based on analysis of the…
A century of hair samples proves leaded gas ban worked
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed a lead-dating method and used it to calculate the age of the Earth (4.55 billion years), based on analysis of the Canton Diablo meteorite. And he soon became a leading advocate for banning leaded gasoline and the “leaded solder” used in canned foods.
copyinvisible.com
February 2, 2026 at 8:08 PM
A century of hair samples proves leaded gas ban worked
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed a lead-dating method and used it to calculate the age of the Earth (4.55 billion years), based on analysis of the…
Science also produced a hero in this saga: Caltech geochemist Clair Patterson. Along with George Tilton, Patterson developed a lead-dating method and used it to calculate the age of the Earth (4.55 billion years), based on analysis of the…
This week's "Voices" features my interview with geochemist Melisa Diaz. Among our topics, we discuss her “Girls on Rock” program, which aims to inspire young women to pursue science. Have a listen!
podcast.osu.edu/voices-of-ex...
podcast.osu.edu/voices-of-ex...
Exploring Icy Extremes with Melisa Diaz | Voices of Excellence
podcast.osu.edu
January 29, 2026 at 12:42 PM
This week's "Voices" features my interview with geochemist Melisa Diaz. Among our topics, we discuss her “Girls on Rock” program, which aims to inspire young women to pursue science. Have a listen!
podcast.osu.edu/voices-of-ex...
podcast.osu.edu/voices-of-ex...
I once dated a geochemist.
He was Holocene.
He was Holocene.
I once dated a dendrochronologist. He double-timed me by dating a tree. There were rings involved.
I once dated an electrician. He really had a short fuse.
January 29, 2026 at 5:17 AM
I once dated a geochemist.
He was Holocene.
He was Holocene.
#OTD in 2022, Dr. Laurie Leshin was appointed the first female director of NASA's Jet Propulsion Laboratory and vice president of Caltech.
A geochemist & space scientist, Leshin had served as president of Worcester Polytechnic Institute since 2014. #WomenInSTEM
A geochemist & space scientist, Leshin had served as president of Worcester Polytechnic Institute since 2014. #WomenInSTEM
January 27, 2026 at 2:37 PM
#OTD in 2022, Dr. Laurie Leshin was appointed the first female director of NASA's Jet Propulsion Laboratory and vice president of Caltech.
A geochemist & space scientist, Leshin had served as president of Worcester Polytechnic Institute since 2014. #WomenInSTEM
A geochemist & space scientist, Leshin had served as president of Worcester Polytechnic Institute since 2014. #WomenInSTEM
On January 27, 1888, birthday of Swiss-Norwegian geochemist, mineralogist and petrologist Victor Moritz Goldschmid.
Goldschmidt is regarded, alongside the Russian-Ukrainian mineralogist Vladimir I. Vernadsky, as a founder of modern geochemistry and crystal chemistry...
Goldschmidt is regarded, alongside the Russian-Ukrainian mineralogist Vladimir I. Vernadsky, as a founder of modern geochemistry and crystal chemistry...
January 27, 2026 at 10:05 AM
On January 27, 1888, birthday of Swiss-Norwegian geochemist, mineralogist and petrologist Victor Moritz Goldschmid.
Goldschmidt is regarded, alongside the Russian-Ukrainian mineralogist Vladimir I. Vernadsky, as a founder of modern geochemistry and crystal chemistry...
Goldschmidt is regarded, alongside the Russian-Ukrainian mineralogist Vladimir I. Vernadsky, as a founder of modern geochemistry and crystal chemistry...
knew a geochemist who claimed he only dated rocks
January 27, 2026 at 5:57 AM
knew a geochemist who claimed he only dated rocks
lol should have read the responses. This thread reads a bit like the geochemist xkcd strip to me I recognized nothing 😳
January 22, 2026 at 2:17 PM
lol should have read the responses. This thread reads a bit like the geochemist xkcd strip to me I recognized nothing 😳
Oh, well, sure.... it's been a long time since there were 'healthy' subdisciplines that could actually carve out different definitions, but it's still a (mostly) fun game to consider what a true geophysicist, geochemist, etc... a double edge sword though all that....
January 15, 2026 at 6:44 PM
Oh, well, sure.... it's been a long time since there were 'healthy' subdisciplines that could actually carve out different definitions, but it's still a (mostly) fun game to consider what a true geophysicist, geochemist, etc... a double edge sword though all that....
EPA will no longer apply a dollar amount to health benefits from clean air. "Improving air pollution...has been shown to be one of the most cost effective ways of improving health and saving lives," says LDEO geochemist Steven Chillrud. Via ABC News. https://bit.ly/4by6DVC
What to know about the new EPA rule on air pollution
A new rule by the EPA to no longer consider the economic cost of human health from two major air pollutants in its regulations will pave the way for more pollution.
abcnews.go.com
January 14, 2026 at 5:49 PM
EPA will no longer apply a dollar amount to health benefits from clean air. "Improving air pollution...has been shown to be one of the most cost effective ways of improving health and saving lives," says LDEO geochemist Steven Chillrud. Via ABC News. https://bit.ly/4by6DVC
Some outreach on thermodynamics and basic human rights. Ask me about Clapeyron slopes and the constitution!
January 10, 2026 at 7:04 PM
Some outreach on thermodynamics and basic human rights. Ask me about Clapeyron slopes and the constitution!
How disappointing.
BbcR4 question time.
I heard Gerard Baker was on, the brilliant isotope geochemist.
Instead we got some rightwing apologist for authoritarianism. Gerard has about as much insight into global affairs as Fred the bore down the pub.
BbcR4 question time.
I heard Gerard Baker was on, the brilliant isotope geochemist.
Instead we got some rightwing apologist for authoritarianism. Gerard has about as much insight into global affairs as Fred the bore down the pub.
January 9, 2026 at 9:10 PM
How disappointing.
BbcR4 question time.
I heard Gerard Baker was on, the brilliant isotope geochemist.
Instead we got some rightwing apologist for authoritarianism. Gerard has about as much insight into global affairs as Fred the bore down the pub.
BbcR4 question time.
I heard Gerard Baker was on, the brilliant isotope geochemist.
Instead we got some rightwing apologist for authoritarianism. Gerard has about as much insight into global affairs as Fred the bore down the pub.
🧵 2/2 Co-edited by LDEO geochemist Joerg Schaefer, Climate Justice Now is due out in March from Columbia University Press and features several chapters by Columbia experts from LDEO, Columbia Climate School, Columbia Public Health, and more: cup.columbia.edu/book/climate...
January 9, 2026 at 3:14 PM
🧵 2/2 Co-edited by LDEO geochemist Joerg Schaefer, Climate Justice Now is due out in March from Columbia University Press and features several chapters by Columbia experts from LDEO, Columbia Climate School, Columbia Public Health, and more: cup.columbia.edu/book/climate...
🧵 2/2 Co-edited by LDEO geochemist Joerg Schaefer, Climate Justice Now is due out in March from Columbia University Press and features several chapters by Columbia University experts from Columbia Climate School, Columbia Public Health, and more: cup.columbia.edu/book/climate...
January 9, 2026 at 3:12 PM
🧵 2/2 Co-edited by LDEO geochemist Joerg Schaefer, Climate Justice Now is due out in March from Columbia University Press and features several chapters by Columbia University experts from Columbia Climate School, Columbia Public Health, and more: cup.columbia.edu/book/climate...
Scientists visited Gakkel Ridge, a hydrothermal vent ecosystem in the Arctic Ocean, for the 1st time.
WHOI geochemist Chris German tells @sciam.bsky.social, “It’s so hard to get there that anything anybody does is almost guaranteed to be exciting and different and new."
Dive in: go.whoi.edu/gakkel
WHOI geochemist Chris German tells @sciam.bsky.social, “It’s so hard to get there that anything anybody does is almost guaranteed to be exciting and different and new."
Dive in: go.whoi.edu/gakkel
January 2, 2026 at 2:14 PM
Scientists visited Gakkel Ridge, a hydrothermal vent ecosystem in the Arctic Ocean, for the 1st time.
WHOI geochemist Chris German tells @sciam.bsky.social, “It’s so hard to get there that anything anybody does is almost guaranteed to be exciting and different and new."
Dive in: go.whoi.edu/gakkel
WHOI geochemist Chris German tells @sciam.bsky.social, “It’s so hard to get there that anything anybody does is almost guaranteed to be exciting and different and new."
Dive in: go.whoi.edu/gakkel
The Proton Spectrum and Disappointment (for synthetic chemists)
The Last Retort (for arguments about the carbocation)
The Downfield Shift or The Gauss and Gulp (for NMR spectroscopists)
Arsoles (possibly niche, for heterocyclic chemists)
Cummingtonite (for geochemist singles)
The Magic Angle
The Last Retort (for arguments about the carbocation)
The Downfield Shift or The Gauss and Gulp (for NMR spectroscopists)
Arsoles (possibly niche, for heterocyclic chemists)
Cummingtonite (for geochemist singles)
The Magic Angle
December 29, 2025 at 9:15 PM
The Proton Spectrum and Disappointment (for synthetic chemists)
The Last Retort (for arguments about the carbocation)
The Downfield Shift or The Gauss and Gulp (for NMR spectroscopists)
Arsoles (possibly niche, for heterocyclic chemists)
Cummingtonite (for geochemist singles)
The Magic Angle
The Last Retort (for arguments about the carbocation)
The Downfield Shift or The Gauss and Gulp (for NMR spectroscopists)
Arsoles (possibly niche, for heterocyclic chemists)
Cummingtonite (for geochemist singles)
The Magic Angle