cs highlights
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October Research Roundup: Select Papers
In this month’s research roundup, we explore how delayed climate action could trigger abrupt changes in the Arctic; what ancient ocean sediments reveal about carbon storage during the last ice age; how fiber-optic cables are improving earthquake monitoring at geothermal sites; and a new timeline of Earth’s magnetic reversals.
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Two Lamont Scientists Celebrate Marie Tharp’s Hall of Fame Induction—and Carry Her Legacy Forward
Robin Bell and Vicki Ferrini reflect on Tharp’s induction into the National Women’s Hall of Fame and how her groundbreaking ocean-floor maps helped establish the theory of plate tectonics.
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Highlights From the 2026 Open House at Lamont-Doherty Earth Observatory
More than 2,500 visitors explored hands-on activities, lectures and installations at Lamont’s campus on Saturday, October 17.
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Microplastics Are Chemically Active, and Could Cause Biological Harm
A new study found that when microplastics contact water, their surfaces can become chemically reactive. This could be how they get us sick.
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How Do We Make COP32 Deliver on Climate Goals?
As COP31 and COP32 approach, a Climate Week panel brought together climate leaders to discuss how the world can turn Paris promises into action.
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September Research Roundup: Select Papers
In this month’s edition of our research roundup, we look at the impact of suspending U.S. embassy reporting on air quality; why two extreme heatwaves had different impacts; and how to make vulnerable populations in smaller cities more visible.
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Come Visit Us at Lamont Open House
Join Lamont-Doherty Earth Observatory in Palisades, NY, on Saturday, Oct. 17, for a free, family-friendly event. Explore research facilities through lab tours, exhibits, hands-on activities and talks.
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El Niño 2026: How Big Could It Get?
The current El Niño will break all sea-surface temperature records to date and will very likely deliver unprecedented weather-related impacts around the world.
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Real Science, Right Now: How High School Students Are Researching Climate Solutions
Through Columbia Climate School and Lamont-Doherty Earth Observatory programs, students conducted hands-on climate research to build scientific, analytical and communication skills.

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
