cs highlights2
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Societies Are Unprepared for the Human Costs of Climate Overshoot
While scientists have made progress describing overshoot’s physical impacts, its humanitarian and social consequences need greater focus, say the authors.
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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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10 Delegates From Columbia and the Climate School Discuss What They Hope to Achieve at COP30
Columbia and Climate School representatives share their goals for this year’s global climate summit in Brazil.
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What Really Happened on Easter Island? Ancient Sediments Rewrite the “Ecocide” Story
A new study challenges long-held narratives of societal “collapse,” instead showing that Rapanui communities adapted to profound climate stress with resilience and innovation.
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Discover Climate LIVE K12 Sessions for 2025-2026
From October to June, Climate School researchers and students will share expertise on topics ranging from climate justice, biodiversity systems, fashion and energy, to youth-focused climate solutions.
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Nine Lamont-Doherty Earth Observatory Researchers Honored by Leading Scientific Organizations
Scientists connected with the Lamont-Doherty Earth Observatory, which is part of the Columbia Climate School, received notable accolades from renowned national and international research societies this fall.
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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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Archaeologist Kristina Douglass Named 2025 MacArthur Fellow
Douglass’s research uses lessons from the past to help communities understand how to adapt to climate change.

By studying thousands of buildings and analyzing their electricity use, Columbia Climate School Dean Alexis Abramson has been able to uncover ways to significantly cut energy consumption and emissions. Watch the Video: “Engineering a Cooler Future Through Smarter Buildings“
