algal blooms
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Cordilleran Ice Sheet Retreat Caused Volcanic Eruptions, Deoxygenation Events 10,000 Years Ago
New research shows that retreat of an ice sheet in the Pacific Northwest led to many volcanic explosions and ocean areas with low oxygen that threatened the health of marine ecosystems.
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What’s Really Feeding Long Island’s Destructive Brown Tides?
A new study shows that phosphorus and nitrogen should be reduced to mitigate harmful algae blooms in coastal NY waters.
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Columbia Team Helps Investigate Algae Bloom Near Kilauea Eruption
Researchers from the Lamont-Doherty Earth Observatory are exploring how volcanic inputs are influencing ocean health in Hawaii.
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Studying Bioluminescent Blooms in the Arabian Sea
A plankton-like species is attacking the base of the food chain in the Arabian sea, disrupting water quality and killing fish. Researchers at the Lamont-Doherty Earth Observatory are learning how to fight back.
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Water Quality Concerns Extend Well Beyond Flint
Researchers at the Columbia Water Center have been analyzing trends in drinking water quality violations. A critical lesson is that water quality violations extend well beyond the problem of lead in Flint’s drinking water.
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Like Weeds of the Sea, ‘Brown Tide’ Algae Exploit Nutrient-Rich Coastlines
Close-Up Look at Genome May Lead to New Ways to Combat Harmful Blooms
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
