Lamont-Doherty Earth Observatory
@lamont.columbia.edu
Building fundamental knowledge about the origin, evolution, and future of our planet since 1949 (lamont.columbia.edu).
Pinned
Scientists just got some ancient clues about future sea-level rise — and it’s bad news
Rock samples collected from the Greenland ice sheet’s Prudhoe Dome show it completely melted in the past 10,000 years — and could vanish again amid climate change.
www.washingtonpost.com
GreenDrill project co-led by LDEO's Joerg Schaefer & Uni at Buffalo's Jason Briner has pubbed new findings that Greenland's Prudhoe Dome had completely melted within past 10,000 years and could suffer the same fate amid modern climate change. Via Washington Post. https://wapo.st/3N8wQQy
Climate clues beneath Antarctic ice, freshwater reserves in Bangladesh, glacier monitoring, role of glacial melt in earthquakes, Lamont at #AGU25, Hudson River Field Station 2025 sampling recap, summer opportunities for HS students, flash flood preparedness, more! ➡️ https://bit.ly/3YRlfIp
January 9, 2026 at 9:50 PM
Climate clues beneath Antarctic ice, freshwater reserves in Bangladesh, glacier monitoring, role of glacial melt in earthquakes, Lamont at #AGU25, Hudson River Field Station 2025 sampling recap, summer opportunities for HS students, flash flood preparedness, more! ➡️ https://bit.ly/3YRlfIp
Reposted by Lamont-Doherty Earth Observatory
@lamont.columbia.edu, recent post-doc researcher @mdtanker.bsky.social and #LDEOPolarGeophysics published this superb work in EGUTheCryosphere: Gravity inversion for sub-ice shelf bathymetry: strengths, limitations, and insights from synthetic modeling 🇦🇶 tc.copernicus.org/articles/19/...
Gravity inversion for sub-ice shelf bathymetry: strengths, limitations, and insights from synthetic modeling
Abstract. Sub-ice-shelf bathymetry strongly influences ice shelf stability by guiding melt-inducing water masses and through pinning points that resist the flow of the overriding ice. Collecting sub-i...
tc.copernicus.org
January 8, 2026 at 9:39 PM
@lamont.columbia.edu, recent post-doc researcher @mdtanker.bsky.social and #LDEOPolarGeophysics published this superb work in EGUTheCryosphere: Gravity inversion for sub-ice shelf bathymetry: strengths, limitations, and insights from synthetic modeling 🇦🇶 tc.copernicus.org/articles/19/...
Reposted by Lamont-Doherty Earth Observatory
#ClimateModels can't match #LongTerm observed changes in the #TropicalPacific zonal #SSTGradient, implying model responses to growing radiative forcing from #GHG is diverging. #ClimateChange #CMIP6 @hannah-byrne.bsky.social @lamont.columbia.edu @climate.columbia.edu
www.nature.com/articles/s41...
www.nature.com/articles/s41...
January 9, 2026 at 10:43 AM
#ClimateModels can't match #LongTerm observed changes in the #TropicalPacific zonal #SSTGradient, implying model responses to growing radiative forcing from #GHG is diverging. #ClimateChange #CMIP6 @hannah-byrne.bsky.social @lamont.columbia.edu @climate.columbia.edu
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Lamont-Doherty Earth Observatory
A fews days left to submit to our #EGU26 session with @mattpriestley.bsky.social A. Ciullo @hcbloomfield19.bsky.social @natalieslord.bsky.social
with solicited talks E. Galloway and F. Pianosi.
Submit & Details: www.egu26.eu/session/57506
@iiasa.ac.at @lamont.columbia.edu @climate.columbia.edu
with solicited talks E. Galloway and F. Pianosi.
Submit & Details: www.egu26.eu/session/57506
@iiasa.ac.at @lamont.columbia.edu @climate.columbia.edu
January 9, 2026 at 1:25 PM
A fews days left to submit to our #EGU26 session with @mattpriestley.bsky.social A. Ciullo @hcbloomfield19.bsky.social @natalieslord.bsky.social
with solicited talks E. Galloway and F. Pianosi.
Submit & Details: www.egu26.eu/session/57506
@iiasa.ac.at @lamont.columbia.edu @climate.columbia.edu
with solicited talks E. Galloway and F. Pianosi.
Submit & Details: www.egu26.eu/session/57506
@iiasa.ac.at @lamont.columbia.edu @climate.columbia.edu
🧵 1/2 Climate Justice Now "is an ambitious, clear-eyed exploration of how rising seas, migration, & inequality intersect—and how researchers and activists can move beyond narrow...silos to find real solutions," writes Jack Austin, Medill Reports: climatechange.medill.northwestern.edu/inside-clima...
January 9, 2026 at 3:14 PM
🧵 1/2 Climate Justice Now "is an ambitious, clear-eyed exploration of how rising seas, migration, & inequality intersect—and how researchers and activists can move beyond narrow...silos to find real solutions," writes Jack Austin, Medill Reports: climatechange.medill.northwestern.edu/inside-clima...
GreenDrill project co-led by LDEO's Joerg Schaefer & Uni at Buffalo's Jason Briner has pubbed new findings that Greenland's Prudhoe Dome had completely melted within past 10,000 years and could suffer the same fate amid modern climate change. Via Washington Post. https://wapo.st/3N8wQQy
Scientists just got some ancient clues about future sea-level rise — and it’s bad news
Rock samples collected from the Greenland ice sheet’s Prudhoe Dome show it completely melted in the past 10,000 years — and could vanish again amid climate change.
www.washingtonpost.com
January 7, 2026 at 6:12 PM
GreenDrill project co-led by LDEO's Joerg Schaefer & Uni at Buffalo's Jason Briner has pubbed new findings that Greenland's Prudhoe Dome had completely melted within past 10,000 years and could suffer the same fate amid modern climate change. Via Washington Post. https://wapo.st/3N8wQQy
🪟 Window strikes are the leading cause of human-caused bird mortality. 🐦 With support from the Rockland Audubon Society and donors, LDEO has installed Feather Friendly Bird Collision Deterrent Markers on Monell Building with the help of CoolVu Solutions Manhattan. 💚 https://lamont.columbia.edu/leisc
January 1, 2026 at 9:15 PM
🪟 Window strikes are the leading cause of human-caused bird mortality. 🐦 With support from the Rockland Audubon Society and donors, LDEO has installed Feather Friendly Bird Collision Deterrent Markers on Monell Building with the help of CoolVu Solutions Manhattan. 💚 https://lamont.columbia.edu/leisc
Reposted by Lamont-Doherty Earth Observatory
✨ In 2025, we welcomed Alexis Abramson as our new dean, celebrated our graduating class of leaders, launched the first MS in Climate Finance in the US, all working to build a more just, sustainable future for our planet. 🦋 State of the Planet shares these 2025 highlights: https://bit.ly/3MSgjAh
December 31, 2025 at 5:53 PM
✨ In 2025, we welcomed Alexis Abramson as our new dean, celebrated our graduating class of leaders, launched the first MS in Climate Finance in the US, all working to build a more just, sustainable future for our planet. 🦋 State of the Planet shares these 2025 highlights: https://bit.ly/3MSgjAh
At #AGU25, PhD student Apollonia Arellano of LDEO shared research on better understanding Atlantic Meridional Overturning Circulation (AMOC), the system of ocean currents that plays a vital role in regulating climate. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/4sdFqO9
https://bit.ly/4sdFqO9
Apollonia Arellano at AGU: Reconstructing Deep Ocean Circulation in the Eastern North Atlantic
YouTube video by Lamont-Doherty Earth Observatory
youtube.com
December 31, 2025 at 5:52 PM
At #AGU25, PhD student Apollonia Arellano of LDEO shared research on better understanding Atlantic Meridional Overturning Circulation (AMOC), the system of ocean currents that plays a vital role in regulating climate. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/4sdFqO9
https://bit.ly/4sdFqO9
At #AGU25, Macy Matthews of LDEO shared research on how deep-ocean circulation responded to climate variations 800,000-300,000 yrs ago from some of coldest, longest ice ages to warm, CO₂-rich interglacial periods. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/4jel9Uh
https://bit.ly/4jel9Uh
December 31, 2025 at 5:47 PM
At #AGU25, Macy Matthews of LDEO shared research on how deep-ocean circulation responded to climate variations 800,000-300,000 yrs ago from some of coldest, longest ice ages to warm, CO₂-rich interglacial periods. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/4jel9Uh
https://bit.ly/4jel9Uh
At #AGU25, postdoc Arijeet Mitra of LDEO shared research on uranium in groundwater in South Dakota where many rural communities, including Native American reservations, rely on wells for drinking water. ➡️ Lamont at AGU25: https://lamont.columbia.edu/agu25
https://youtube.com/shorts/-w5i40tkjqo
https://youtube.com/shorts/-w5i40tkjqo
Arijeet Mitra at AGU: Uranium in Groundwater in Northern Plains Aquifers
YouTube video by Lamont-Doherty Earth Observatory
youtube.com
December 30, 2025 at 5:49 PM
At #AGU25, postdoc Arijeet Mitra of LDEO shared research on uranium in groundwater in South Dakota where many rural communities, including Native American reservations, rely on wells for drinking water. ➡️ Lamont at AGU25: https://lamont.columbia.edu/agu25
https://youtube.com/shorts/-w5i40tkjqo
https://youtube.com/shorts/-w5i40tkjqo
At #AGU25, PhD student Meritxell Colet of LDEO shared research on seismicity of Tanganyika-Rukwa Rift Zone in East Africa using machine learning to identify mechanisms that drive strain release leading to earthquakes. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/4sipw4P
https://bit.ly/4sipw4P
Meritxell Colet at AGU: Studying Seismicity in East Africa Using Machine Learning
YouTube video by Lamont-Doherty Earth Observatory
youtube.com
December 29, 2025 at 6:15 PM
At #AGU25, PhD student Meritxell Colet of LDEO shared research on seismicity of Tanganyika-Rukwa Rift Zone in East Africa using machine learning to identify mechanisms that drive strain release leading to earthquakes. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/4sipw4P
https://bit.ly/4sipw4P
At #AGU25, postdoc Clara Chang of LDEO shared discovery of native desert plant that removes significant levels of metals from soil of an abandoned uranium mine inside Arizona's Petrified Forest National Park, raising environmental and public health concerns. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
December 28, 2025 at 6:37 PM
At #AGU25, postdoc Clara Chang of LDEO shared discovery of native desert plant that removes significant levels of metals from soil of an abandoned uranium mine inside Arizona's Petrified Forest National Park, raising environmental and public health concerns. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
At #AGU25, we stopped by to talk with postdoc Abhishek Anand of LDEO about his research on the short-term effects of New York City's congestion pricing policy (implemented on January 5, 2025) on local air pollution. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/4q7Be0A
https://bit.ly/4q7Be0A
Abhishek Anand at AGU: Impacts of NYC's Congestion Pricing on Air Quality
YouTube video by Lamont-Doherty Earth Observatory
youtube.com
December 27, 2025 at 8:55 PM
At #AGU25, we stopped by to talk with postdoc Abhishek Anand of LDEO about his research on the short-term effects of New York City's congestion pricing policy (implemented on January 5, 2025) on local air pollution. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/4q7Be0A
https://bit.ly/4q7Be0A
At #AGU25, we stopped by to talk with PhD student Yi Xia of LDEO about her research using "storylines" to determine how different, but plausible, sea surface temperature patterns could shape the activity of tropical cyclones in the near future. ➡️ Lamont at AGU25: https://lamont.columbia.edu/agu25
December 24, 2025 at 5:47 PM
At #AGU25, we stopped by to talk with PhD student Yi Xia of LDEO about her research using "storylines" to determine how different, but plausible, sea surface temperature patterns could shape the activity of tropical cyclones in the near future. ➡️ Lamont at AGU25: https://lamont.columbia.edu/agu25
At #AGU25, we stopped by to talk with recent PhD Claire Jasper of LDEO about her research using sediment cores from North Atlantic and Southern Ocean from the early Pleistocene to investigate the timing and pacing of iceberg discharge. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/4jarLDb
https://bit.ly/4jarLDb
Claire Jasper at AGU: Iceberg Discharge Events in the Early Pleistocene
YouTube video by Lamont-Doherty Earth Observatory
youtube.com
December 23, 2025 at 5:46 PM
At #AGU25, we stopped by to talk with recent PhD Claire Jasper of LDEO about her research using sediment cores from North Atlantic and Southern Ocean from the early Pleistocene to investigate the timing and pacing of iceberg discharge. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/4jarLDb
https://bit.ly/4jarLDb
Reposted by Lamont-Doherty Earth Observatory
🍃 2025 was another historic year for climate impacts, but also a year marked by meaningful collaboration to build a more sustainable and just future for our planet. 📣 Check out this past year's top stories from State of the Planet: https://bit.ly/4jkigkX
December 22, 2025 at 5:48 PM
🍃 2025 was another historic year for climate impacts, but also a year marked by meaningful collaboration to build a more sustainable and just future for our planet. 📣 Check out this past year's top stories from State of the Planet: https://bit.ly/4jkigkX
At #AGU25, we stopped by to talk with LDEO volcanologist Terry Plank about the latest from the AVERT project, which is testing how an expanded toolkit of sensors can sharpen real-time eruption forecasting at Costa Rica's Poás Volcano. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/49eZDKO
https://bit.ly/49eZDKO
Terry Plank at AGU: Anticipating Volcanic Eruptions in Real-Time
YouTube video by Lamont-Doherty Earth Observatory
youtube.com
December 22, 2025 at 9:25 PM
At #AGU25, we stopped by to talk with LDEO volcanologist Terry Plank about the latest from the AVERT project, which is testing how an expanded toolkit of sensors can sharpen real-time eruption forecasting at Costa Rica's Poás Volcano. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/49eZDKO
https://bit.ly/49eZDKO
Drinking water is often scarce in Bangladesh. A team of researchers including Lamont-Doherty Earth Observatory geophysicists Huy Le, Kerry Key (now Deep Blue Geophysics), and Michael Steckler have tapped into a potential solution: https://bit.ly/3YHl560
December 22, 2025 at 6:15 PM
Drinking water is often scarce in Bangladesh. A team of researchers including Lamont-Doherty Earth Observatory geophysicists Huy Le, Kerry Key (now Deep Blue Geophysics), and Michael Steckler have tapped into a potential solution: https://bit.ly/3YHl560
At #AGU25, climate scientist Tess Wei-Ping Jacobson shared research on tropical Pacific and climate change as drivers of burned forest area trends in southwestern US & eastern Australia, two of world's most fire-prone regions. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/496NZS8
https://bit.ly/496NZS8
Tess Wei-Ping Jacobson at AGU: Contributions of the Tropical Pacific to Fire Trends
YouTube video by Lamont-Doherty Earth Observatory
youtube.com
December 22, 2025 at 12:17 AM
At #AGU25, climate scientist Tess Wei-Ping Jacobson shared research on tropical Pacific and climate change as drivers of burned forest area trends in southwestern US & eastern Australia, two of world's most fire-prone regions. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/496NZS8
https://bit.ly/496NZS8
At #AGU25, PhD student Noel Siegert of LDEO shared research on how the coastal ocean is linked to humid heat on land nearby, with implications for human health, power supplies, marine biodiversity, and food production. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/499GXvL
https://bit.ly/499GXvL
Noel Siegert at AGU: Coastal Sea Surface Temperatures and Humid Heat Stress on Nearby Land
YouTube video by Lamont-Doherty Earth Observatory
youtube.com
December 21, 2025 at 6:45 PM
At #AGU25, PhD student Noel Siegert of LDEO shared research on how the coastal ocean is linked to humid heat on land nearby, with implications for human health, power supplies, marine biodiversity, and food production. ➡️ Lamont at AGU25: https://bit.ly/48VGXQ1
https://bit.ly/499GXvL
https://bit.ly/499GXvL
At #AGU25, tree ring scientist Caroline Leland of LDEO shared her research on dshared research on climate sensitivity of wood from Siberian Pine and Larch in North-central Mongolia to improve or build upon reconstructions of long-term climate. ➡️ Lamont at AGU25: https://lamont.columbia.edu/agu25
Caroline Leland at AGU: Temperature Signals of Siberian Pine and Larch in North-central Mongolia
YouTube video by Lamont-Doherty Earth Observatory
youtube.com
December 20, 2025 at 8:15 PM
At #AGU25, tree ring scientist Caroline Leland of LDEO shared her research on dshared research on climate sensitivity of wood from Siberian Pine and Larch in North-central Mongolia to improve or build upon reconstructions of long-term climate. ➡️ Lamont at AGU25: https://lamont.columbia.edu/agu25
At #AGU25, PhD student Caitlin Locke of LDEO shared her research on extending existing records of changes in thickness of the West Antarctic Ice Shelf, which buttresses the Ice Sheet and helps regulate sea-level rise. ➡️ Lamont at AGU25: https://lamont.columbia.edu/agu25
Caitlin Locke at AGU: West Antarctic Ice-Shelf Thickness Records
YouTube video by Lamont-Doherty Earth Observatory
youtube.com
December 19, 2025 at 9:11 PM
At #AGU25, PhD student Caitlin Locke of LDEO shared her research on extending existing records of changes in thickness of the West Antarctic Ice Shelf, which buttresses the Ice Sheet and helps regulate sea-level rise. ➡️ Lamont at AGU25: https://lamont.columbia.edu/agu25
At #AGU25, LDEO marine geologist Dallas Abbott shared findings of fragments from a 3,000-year-old layer buried in the Hudson River whose chemistry resembles cosmic dust, suggesting a sudden, high-energy event occurred nearby. ➡️ Lamont at AGU25: https://lamont.columbia.edu/agu25
December 18, 2025 at 9:06 PM
At #AGU25, LDEO marine geologist Dallas Abbott shared findings of fragments from a 3,000-year-old layer buried in the Hudson River whose chemistry resembles cosmic dust, suggesting a sudden, high-energy event occurred nearby. ➡️ Lamont at AGU25: https://lamont.columbia.edu/agu25
At #AGU25, PhD student Yianna Bekris of LDEO shared her research on drivers, seasonality, and spatial dynamics of heatwaves across terrestrial, marine, and coastal environments in a warming world. ➡️ Lamont at AGU25: https://lamont.columbia.edu/agu25
Yianna Bekris at AGU: Atmospheric Extreme Heat Across Environments
YouTube video by Lamont-Doherty Earth Observatory
youtube.com
December 18, 2025 at 4:13 PM
At #AGU25, PhD student Yianna Bekris of LDEO shared her research on drivers, seasonality, and spatial dynamics of heatwaves across terrestrial, marine, and coastal environments in a warming world. ➡️ Lamont at AGU25: https://lamont.columbia.edu/agu25