Press Release2
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Human Activity Is Driving Rapid Sinking of World’s River Deltas
New research, published in Nature, documents the rate of elevation loss in the world’s deltas, and finds that people are the primary reason for it.
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Get Ready for Smokier Air: Record 2023 Wildfire Smoke Marks Long-Term Shift in North American Air Quality
A new analysis of air quality data from the past 70 years shows a broader, continent-wide trend toward smokier skies.
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Vast Freshwater Reserves Found Beneath Salinity-Stressed Coastal Bangladesh
Drinking water is often scarce in Bangladesh. These researchers have tapped into a potential solution.
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Scientists Search for Ancient Climate Clues Beneath Antarctic Ice
An international team, including researchers from Columbia’s Lamont-Doherty Earth Observatory, is attempting to drill for mud and rocks holding critical insights about the fate of the West Antarctic Ice Sheet in our warming world.
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American Geophysical Union 2025: Key Scientific Presentations From Lamont-Doherty Earth Observatory and Columbia Climate School
Check out a guide to some of our notable research at this year’s AGU conference.
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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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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.
The first Earth Day in 1970 ignited a movement to stop polluting our planet. Today, our scientists and experts are tackling the most pressing challenges to achieve real-world impact. This Earth Day, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.
