Lamont-Doherty Earth Observatory45
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Where COVID-19’s Death Grip Slipped (Briefly)
In 2020, mortality rates climbed in most of the world, but dropped in the Bangladeshi countryside, for reasons that are still unknown.
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How Close Are We to Climate Tipping Points?
Will overshooting 1.5°C of warming push us over climate tipping points, triggering irreversible and abrupt changes?
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Why Did Glacial Cycles Intensify a Million Years Ago?
A new study suggests that a million years ago, glaciers began sticking more persistently to their beds, triggering cycles of longer ice ages.
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High School Students Learn From and Educate Communities About Hudson River Ecosystems
In the Next Generation of Hudson River Educators program, students learned what community members think about the Hudson and developed tools to share their own findings.
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Tackling a 40 Million-Year-Old Conundrum
A new study bolsters the idea that the uplifts of the Himalayas and Andes that began tens of millions years ago helped trigger the many ice ages that followed.
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Alumni Spotlight: Sharelle Pampo Copple
Copple, a recent alumna of the Sustainability Science program, shares how her experiences at Columbia have helped her make an impact on climate change research.
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Data Scientist Garima Raheja Is Addressing the Environmental Justice Issues of Air Pollution
She’s using air quality sensors to measure how air pollution impacts disadvantaged people in the U.S. and sub-Saharan Africa.
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Quantum Phase Transition Is Detected on a Global Scale in the Deep Earth
Scientists have observed and learned to use subatomic phenomena on the earth’s surface. Now, for the first time, they can see similar things deep within the planet.
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Scientists and Native People Jointly Study Sea-Ice Declines Threatening Seal Hunts
Seals have been a staple for the coastal village of Kotzebue for generations. Rapid changes in sea ice driven by ocean warmth are presenting a challenge for hunters.

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!
