Lamont-Doherty Earth Observatory14
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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.
COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
