Lamont-Doherty Earth Observatory
@lamont.columbia.edu
Building fundamental knowledge about the origin, evolution, and future of our planet since 1949 (lamont.columbia.edu).
✨ Season's Greetings! Wishing you a season of warmth, peace, and renewal. 🌳 This holiday season, we celebrate 50 years of tree-ring research at Lamont — five decades of discovery, curiosity, and collaboration. 🎁 Tracing Time Through Trees:
https://bit.ly/4pGxcwi
https://bit.ly/4pGxcwi
December 12, 2025 at 8:55 PM
✨ Season's Greetings! Wishing you a season of warmth, peace, and renewal. 🌳 This holiday season, we celebrate 50 years of tree-ring research at Lamont — five decades of discovery, curiosity, and collaboration. 🎁 Tracing Time Through Trees:
https://bit.ly/4pGxcwi
https://bit.ly/4pGxcwi
🌎 At #AGU25, our scientists and experts are playing an active role, sharing vital research and connecting with colleagues. ➡️ Learn more about our participation (https://bit.ly/3KG1hwI) and some of our many notable presentations: https://bit.ly/4pzAyRD
December 11, 2025 at 4:49 PM
🌎 At #AGU25, our scientists and experts are playing an active role, sharing vital research and connecting with colleagues. ➡️ Learn more about our participation (https://bit.ly/3KG1hwI) and some of our many notable presentations: https://bit.ly/4pzAyRD
❄️ LDEO climate scientist Marco Tedesco discusses the X‑Snow citizen science project to measure, photograph, and collect snow data, which helps improve climate predictions and engages the community in environmental stewardship. 🎧 Kaatscast podcast: https://bit.ly/3MgNdKz
December 8, 2025 at 8:51 PM
❄️ LDEO climate scientist Marco Tedesco discusses the X‑Snow citizen science project to measure, photograph, and collect snow data, which helps improve climate predictions and engages the community in environmental stewardship. 🎧 Kaatscast podcast: https://bit.ly/3MgNdKz
Among US-based lead authors (📷) who met in Paris to begin drafting IPCC's 7th Assessment Report to inform climate policy are Columbia Climate School professor/LDEO climate scientist Suzana Camargo and NASA GISS research physical scientist Anastasia Romanou. ➡️ https://bit.ly/4oEMhgo
December 8, 2025 at 5:53 PM
Among US-based lead authors (📷) who met in Paris to begin drafting IPCC's 7th Assessment Report to inform climate policy are Columbia Climate School professor/LDEO climate scientist Suzana Camargo and NASA GISS research physical scientist Anastasia Romanou. ➡️ https://bit.ly/4oEMhgo
Lamont at #AGU25, effects of reducing arsenic in water, what really happened on Easter Island, repairing GNSS in Bangladesh, Uncovering Hidden Earthquake Faults + Lessons From Past Ice Shelves conversations, summer opportunities for HS students, more! ➡️ https://bit.ly/4ammMwQ
December 2, 2025 at 6:34 PM
Lamont at #AGU25, effects of reducing arsenic in water, what really happened on Easter Island, repairing GNSS in Bangladesh, Uncovering Hidden Earthquake Faults + Lessons From Past Ice Shelves conversations, summer opportunities for HS students, more! ➡️ https://bit.ly/4ammMwQ
Continuing their travels around coastal zone of Ganges-Brahmaputra Delta in Bangladesh to repair GNSS instruments, LDEO geophysicist Mike Steckler and team note that future sustainability depends on balance of sea level rise, subsidence, and deposition of sediments: https://bit.ly/44mPcDl
December 1, 2025 at 6:08 PM
Continuing their travels around coastal zone of Ganges-Brahmaputra Delta in Bangladesh to repair GNSS instruments, LDEO geophysicist Mike Steckler and team note that future sustainability depends on balance of sea level rise, subsidence, and deposition of sediments: https://bit.ly/44mPcDl
In Bangladesh, LDEO geophysicist Mike Steckler and team continued their travels around the coastal zone of the world’s largest delta to repair GNSS instruments, which can measure the sinking of the delta to better than 1 mm/year. Learn more: https://bit.ly/4ifgl0u
November 24, 2025 at 6:09 PM
In Bangladesh, LDEO geophysicist Mike Steckler and team continued their travels around the coastal zone of the world’s largest delta to repair GNSS instruments, which can measure the sinking of the delta to better than 1 mm/year. Learn more: https://bit.ly/4ifgl0u
On Dec 3 6-8pm ET, join us for our next Public Lecture, Uncovering Hidden Earthquake Faults: New Insights into the Greater New York Region Seismic Hazards, with Lamont-Doherty Earth Observatory structural geologist Folarin Kolawole. Learn more/RSVP: https://bit.ly/44oQ9L9
November 24, 2025 at 5:15 PM
On Dec 3 6-8pm ET, join us for our next Public Lecture, Uncovering Hidden Earthquake Faults: New Insights into the Greater New York Region Seismic Hazards, with Lamont-Doherty Earth Observatory structural geologist Folarin Kolawole. Learn more/RSVP: https://bit.ly/44oQ9L9
In this #LamontVoices, LDEO geochemist Lex van Geen explains the importance of people's access to information about the arsenic in their wells in light of a new study on how reducing arsenic in drinking water cuts risk of death even after years of chronic exposure.
https://bit.ly/3LPDeeK
https://bit.ly/3LPDeeK
November 18, 2025 at 6:39 PM
In this #LamontVoices, LDEO geochemist Lex van Geen explains the importance of people's access to information about the arsenic in their wells in light of a new study on how reducing arsenic in drinking water cuts risk of death even after years of chronic exposure.
https://bit.ly/3LPDeeK
https://bit.ly/3LPDeeK
In this #LamontVoices, LDEO geochemist Lex van Geen reflects on the contributions of the research team to a new landmark study on how reducing arsenic in drinking water cuts risk of death even after years of chronic exposure. https://bit.ly/3LPDeeK
November 18, 2025 at 5:15 PM
In this #LamontVoices, LDEO geochemist Lex van Geen reflects on the contributions of the research team to a new landmark study on how reducing arsenic in drinking water cuts risk of death even after years of chronic exposure. https://bit.ly/3LPDeeK
In this #LamontVoices, LDEO geochemist Lex van Geen explains how researching the effects of arsenic in drinking water began, ultimately leading to a new landmark study on how reducing arsenic cuts the risk of death even after years of chronic exposure. https://bit.ly/3LPDeeK
November 17, 2025 at 9:11 PM
In this #LamontVoices, LDEO geochemist Lex van Geen explains how researching the effects of arsenic in drinking water began, ultimately leading to a new landmark study on how reducing arsenic cuts the risk of death even after years of chronic exposure. https://bit.ly/3LPDeeK
Published today in JAMA, a landmark study co-led by LDEO geochemist Lex van Geen provides the first long-term, individual-level evidence that reducing arsenic exposure from drinking water may lower mortality, even among people exposed to the toxic contaminant for years: https://bit.ly/3LPDeeK
November 17, 2025 at 5:46 PM
Published today in JAMA, a landmark study co-led by LDEO geochemist Lex van Geen provides the first long-term, individual-level evidence that reducing arsenic exposure from drinking water may lower mortality, even among people exposed to the toxic contaminant for years: https://bit.ly/3LPDeeK
At Lamont-Doherty Earth Observatory, we're celebrating the intersection of art and science with three exhibits, with two also featured at COP30 Brasil! Learn more from artist Selva Ozelli about these works, Lamont research, and #COP30 theme of Forests to Sea. Via Tired Earth: https://bit.ly/4hZ1ojb
November 14, 2025 at 9:45 PM
At Lamont-Doherty Earth Observatory, we're celebrating the intersection of art and science with three exhibits, with two also featured at COP30 Brasil! Learn more from artist Selva Ozelli about these works, Lamont research, and #COP30 theme of Forests to Sea. Via Tired Earth: https://bit.ly/4hZ1ojb
In Bangladesh to repair GNSS stations, which record tectonic motions of plate boundary and Ganges-Brahmaputra Delta subsidence, LDEO geophysicist Mike Steckler and team continued from Sylhet south to stations in Comilla, then to Dhaka and the coast: https://bit.ly/43QkphZ
November 13, 2025 at 11:30 PM
In Bangladesh to repair GNSS stations, which record tectonic motions of plate boundary and Ganges-Brahmaputra Delta subsidence, LDEO geophysicist Mike Steckler and team continued from Sylhet south to stations in Comilla, then to Dhaka and the coast: https://bit.ly/43QkphZ
Geophysicist Mike Steckler of Lamont-Doherty Earth Observatory is back in Sylhet, Bangladesh to repair GNSS stations that are monitoring tectonics and earthquake hazards, and measuring the sinking of the land in the world's biggest delta. Learn more: https://bit.ly/3JLDUBk
November 10, 2025 at 5:46 PM
Geophysicist Mike Steckler of Lamont-Doherty Earth Observatory is back in Sylhet, Bangladesh to repair GNSS stations that are monitoring tectonics and earthquake hazards, and measuring the sinking of the land in the world's biggest delta. Learn more: https://bit.ly/3JLDUBk
MacArthur Fellowship and other notable accolades, why Earth's continents are stable, where soil meets data, AI and SDGs, impact of climate change on water systems, mercury emissions, hidden earthquake faults, art meets science, Day in Life of Hudson & Harbor, more! ➡️ https://bit.ly/3LNYQbm
November 7, 2025 at 6:50 PM
MacArthur Fellowship and other notable accolades, why Earth's continents are stable, where soil meets data, AI and SDGs, impact of climate change on water systems, mercury emissions, hidden earthquake faults, art meets science, Day in Life of Hudson & Harbor, more! ➡️ https://bit.ly/3LNYQbm
What really happened on Easter Island? New study led by PhD student Red Stein with LDEO paleoclimatologists Dorothy Peteet, Billy D'Andrea, and colleagues challenges narratives of societal "collapse," showing that Rapanui communities adapted to climate stress with resilience: https://bit.ly/47Ndirz
November 6, 2025 at 8:51 PM
What really happened on Easter Island? New study led by PhD student Red Stein with LDEO paleoclimatologists Dorothy Peteet, Billy D'Andrea, and colleagues challenges narratives of societal "collapse," showing that Rapanui communities adapted to climate stress with resilience: https://bit.ly/47Ndirz
As part of Lamont's Research as Art 2025, visual artist and artist-in-residence at NASA Goddard Institute for Space Studies Kate Doyle facilitated a paint pour where the community worked together to create collaborative art pieces where "you have the intellect and the heart represented together."
November 2, 2025 at 8:03 PM
As part of Lamont's Research as Art 2025, visual artist and artist-in-residence at NASA Goddard Institute for Space Studies Kate Doyle facilitated a paint pour where the community worked together to create collaborative art pieces where "you have the intellect and the heart represented together."
Both artists and scientists strive to see the world in new ways, and to communicate that vision. Lamont's Research as Art 2025—organized by Ally Peccia, Aviva Intveld, Caitlin Locke, Hanna Anderson, Lindsay Hogan, and Phoebe Salowey—celebrates these endeavors and showcases Lamont research.
November 1, 2025 at 9:11 PM
Both artists and scientists strive to see the world in new ways, and to communicate that vision. Lamont's Research as Art 2025—organized by Ally Peccia, Aviva Intveld, Caitlin Locke, Hanna Anderson, Lindsay Hogan, and Phoebe Salowey—celebrates these endeavors and showcases Lamont research.
📣 Postdoc opportunity alert! Join our dynamic community of Earth, environmental, and climate scientists as LDEO postdoctoral fellow. Principal criteria: scientific excellence + clear plan to investigate problems at forefront of Earth science. ➡️ Apply by Nov 7: https://bit.ly/3WRD6xT
October 31, 2025 at 8:45 PM
📣 Postdoc opportunity alert! Join our dynamic community of Earth, environmental, and climate scientists as LDEO postdoctoral fellow. Principal criteria: scientific excellence + clear plan to investigate problems at forefront of Earth science. ➡️ Apply by Nov 7: https://bit.ly/3WRD6xT
A new study by Penn State's Andrew Smye and Lamont-Doherty Earth Observatory's Peter Kelemen solves the mystery of how Earth's continents have remained remarkably stable for billions of years, with implications beyond geologic history. Learn more: https://bit.ly/43aHtHQ
October 31, 2025 at 8:19 PM
A new study by Penn State's Andrew Smye and Lamont-Doherty Earth Observatory's Peter Kelemen solves the mystery of how Earth's continents have remained remarkably stable for billions of years, with implications beyond geologic history. Learn more: https://bit.ly/43aHtHQ
Resulting from latest AVERT (avert.ldeo.columbia.edu) workshop at Costa Rica's Poás volcano, drone-based method offers a promising tool for extending soil gas measurements to hazardous or hard-to-reach environments, contributing to safer, more comprehensive volcano monitoring: https://bit.ly/3JgH1B4
October 26, 2025 at 7:50 PM
Resulting from latest AVERT (avert.ldeo.columbia.edu) workshop at Costa Rica's Poás volcano, drone-based method offers a promising tool for extending soil gas measurements to hazardous or hard-to-reach environments, contributing to safer, more comprehensive volcano monitoring: https://bit.ly/3JgH1B4
Why do sailors say “port” and “starboard”? R/V Marcus G. Langseth science officer Cody Bahlau explains from Puntarenas, Costa Rica as expedition MGL 2510 wrapped up. 🚢 Learn more: instagram.com/p/DQKh1xJEpDE/
October 23, 2025 at 8:23 PM
Why do sailors say “port” and “starboard”? R/V Marcus G. Langseth science officer Cody Bahlau explains from Puntarenas, Costa Rica as expedition MGL 2510 wrapped up. 🚢 Learn more: instagram.com/p/DQKh1xJEpDE/
🚢 R/V Marcus G. Langseth science officer Cody Bahlau reported from MGL 2510 as the final ocean bottom seismometer (OBS) was deployed into the Pacific at the Galápagos Triple Junction after careful planning, long hours, and teamwork from desk to lab and deck.
October 22, 2025 at 5:51 PM
🚢 R/V Marcus G. Langseth science officer Cody Bahlau reported from MGL 2510 as the final ocean bottom seismometer (OBS) was deployed into the Pacific at the Galápagos Triple Junction after careful planning, long hours, and teamwork from desk to lab and deck.
💚🌍 Thank you to our amazing community for outstanding support of Lamont science on #ColumbiaGivingDay! Special thanks to our generous challenge match donor for doubling the impact! 😍 See your collective support: https://givingday.columbia.edu/pages/columbia-climate-school
October 22, 2025 at 12:30 PM
💚🌍 Thank you to our amazing community for outstanding support of Lamont science on #ColumbiaGivingDay! Special thanks to our generous challenge match donor for doubling the impact! 😍 See your collective support: https://givingday.columbia.edu/pages/columbia-climate-school