Lamont-Doherty Earth Observatory4
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The Ocean Carbon Sink Is Ailing
Measurements analyzed by an international research team indicate the global ocean absorbed significantly less CO₂ than anticipated during the unprecedented marine heatwave in 2023.
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Study Finds We’ll Lose Almost 40 Percent of Our Glacial Ice
Even if global temperatures plateau, glaciers worldwide will continue to melt.
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Twenty Years Later: What Lessons Have We Learned From Hurricane Katrina?
As the risk of extreme weather grows, Columbia experts revisit Katrina’s legacy and what it means for future catastrophes.
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The Link Between the Climate Crisis and Linguistic Diversity in New York City
Climate change is increasing emigration from some of the most linguistically diverse high mountain regions in the world, shaping migrant communities in New York.
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Columbia Climate School Welcomes New Faculty To Start the Academic Year
This expansion reflects the school’s sustained efforts to strengthen climate research and cross-disciplinary collaboration, while preparing future leaders with the skills to tackle the global climate crisis.
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Tiny Giants: Marine Microbes’ Pivotal Role in the Ocean’s Future
These “invisible” organisms are key to the question of how much carbon the ocean can hold.
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Happy Birthday, Marie Tharp!
State of the Planet celebrates the legacy of this history-making cartographer on what would be her 105th birthday.
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Seismic Study Reveals Hidden Megathrust Earthquake Risk off British Columbia
A new study has revealed the first detailed images of a newly developing subduction zone off the coast of British Columbia.
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A Chaotic Mars-Earth Planetary Cycle May Have Contributed to One of Earth’s Major Warming Events
New research shows that the Mars–Earth orbital cycle once had a 1.6-million-year cycle that coincided with major climate swings.
AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
