Lamont-Doherty Earth Observatory
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Indigenous Herders and Peru’s Melting Glaciers: A Conversation with Anthropologist Allison Caine
Caine’s new book depicts a small community in the glacier-fed Peruvian Highlands as it navigates climate change and social pressures.
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In Eastern Africa, the Cradle of Humankind Is Tearing Apart
Researchers have found that Earth’s underlying crust in the Turkana Rift region has been significantly thinned, presaging Africa’s eventual breakup—and with that finding, the researchers offer a new perspective on Turkana’s fossil record of human evolution.
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Columbia Beautiful Planet 2026
Once again, we honor Earth Day by sharing some amazing photos celebrating the beauty and magic of our planet, as captured by the Columbia community.
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Climate School Experts on Congestion Pricing’s First Year
Three Climate School experts weigh in on the success of New York City’s congestion pricing program.
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Tree Rings Reveal Hurricane Impacts and Emerging Sea-Level Stress in Coastal Forests
New research suggests that trees largely recover from storms within two years, and that coastal trees may be stressed from sea-level rise.
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In an Alpine Plant Species, Ancient Alleles May Help Drive Climate Change Adaptation
Researchers found that two alleles in the wood pink plant species may allow the perennials to adapt to warming temperatures.
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Sinking Land Drives Hidden Flood Risk in One of the World’s Most Populated Regions
A new study finds that land subsidence is outpacing ocean-driven sea-level rise along the northern coastline of Java Island, Indonesia.
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Two Sustainability Students See Opportunity Hidden in Laundry-Induced Microplastic Pollution
Students and faculty at Columbia’s M.S. in Sustainability Management and Sustainability Science programs turned cutting-edge research on microplastics into Moby Filter, a sustainability startup tackling laundry-induced pollution at its source.
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A Complicated Future for a Methane-Cleansing Molecule
A new model shows how levels of the “atmosphere’s detergent” may rise and fall in response to climate change.
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.
