research-home30
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Mining Pollution Limits Access to Clean Water in Papua New Guinea
A new report documents the social, environmental, economic, and health impacts of gold mining in Porgera, Papua New Guinea.
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How Pollution and Greenhouse Gases Affect the Climate in the Sahel
A recent study is the first to show that pollutants and greenhouse gas emissions have directly affected the 20th century evolution of rainfall over a region.
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Shade-Grown Coffee Helps Ecosystems and Farmers
A new study finds that coffee farmers could be better off financially if they used shade-growing practices for part of their production.
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Drill Cores From Pre-Ancient Greece Open Insights to Climate
Newly analyzed drill cores taken from the bottom of Greece’s Gulf of Corinth show that sediment flow into the basin has varied dramatically over the past 500,000-plus years, as the earth passed in and out of ice ages, and humans later dominated the surrounding landscape.
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New Tree Ring Analysis Method May Open Insights to Past Climate
Measurements of stable isotopes in tree rings may expand the climate information that scientists can get from old trees.
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Found: The Mechanism for Arctic Cold Air Outbreaks into Eurasia
New developments in climate research led by atmospheric scientist Yutian Wu are adding to our understanding of the “polar vortex” and other extreme events.
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Using Machine Learning to Eradicate the Tsetse Fly in Sub-Saharan Africa
A Columbia team is pioneering a machine learning-based imaging and sorting solution that would help to drastically reduce Africa’s tsetse population.
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Data Science Students Team Up With Marine Biologist
The students are using deep learning and neural networks to create an automated system that classifies plankton for large-scale oceanographic studies.
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How to Talk to Anti-Vaxxers
Research assistant Rachel Alter became a “pro-vaccine troll” so you don’t have to.
AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
