Press Release4
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Reducing Arsenic in Drinking Water Cuts Risk of Death, Even After Years of Chronic Exposure
Published today in JAMA, a 20-year study of nearly 11,000 adults in Bangladesh found that lowering arsenic levels in drinking water reduced the risk of death from chronic illnesses, compared with continued exposure.
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How Hard Is It to Dim the Sun?
Solar radiation management is gaining traction as a climate intervention—but new research warns that real-world constraints make it riskier and more uncertain than most models suggest.
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A New Study Indicates Forest Regeneration Provides Climate Benefits, but Won’t Offset Fossil Fuels
Effective climate policy must treat forest regeneration and emissions reductions as complementary strategies, not alternatives, according to a new paper.
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Earth’s Crust Is Tearing Apart off the Pacific Northwest—and That’s Not Necessarily Bad News
Using seismic reflection imaging—essentially an ultrasound of the Earth’s subsurface—and detailed earthquake records, researchers captured a subduction zone in the process of tearing itself apart.
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Study of Extreme Indian Rainfall Upends Conventional Wisdom
While El Niño often brings drought conditions to India, a new paper shows that it also increases the likelihood of devastating downpours in some of the country’s most heavily populated regions.
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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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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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Columbia Climate School Launches Climate, Earth, and Society Distinguished Fellows Program
A new initiative will unite globally renowned leaders to drive bold, collaborative action on the most urgent challenges facing our climate, Earth and society.
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Burned Amazon Forests Stay Hot and Stressed for Decades, Finds New NASA-Supported Study
Research indicates that fire alters tropical forests’ ability to tolerate climate stress and store carbon—a crucial role in global climate mitigation.

You Asked invites you to share your most pressing questions about climate, science, and sustainability. Lamont-Doherty Earth Observatory and Columbia Climate School experts will respond with clear, evidence-based answers. Pose your questions and story ideas!
