Beizhan Yan
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What a Visit to Stamford’s Wastewater and Recycling Facilities Reveals About Our Choices
Columbia’s MPA-ESP students explored Stamford, Connecticut’s Water Pollution Control Authority. They left with as many questions as answers.
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How AI Is Revolutionizing the Recycling Industry
Modern waste facilities are incorporating AI into their systems, using robots guided by AI vision systems and machine learning algorithms, high resolution cameras, hyperspectral imaging, near-infrared sensors and predictive analytics.
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Nanoplastics Are All Around (and Inside) Us
How are humans exposed to these tiny and ubiquitous plastics? And is there anything we can do about it?
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Science for the Planet: Tackling the Invisible Threat of Nanoplastics
Beizhan Yan, an environmental geochemist at the Lamont-Doherty Earth Observatory, has come up with new methods to detect and analyze tiny plastic particles to better understand their impact on human and environmental health.
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World Water Film Festival Makes a Splash at Columbia Climate School
The event featured films and speakers from around the world who spotlighted humanity’s essential relationship with water and how it continues to evolve in our changing climate.
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
