Health
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Mercury Rising: Why Emissions of This Deadly Neurotoxin May Soon Increase
The EPA is proposing changes to the Mercury and Air Toxic Standards (MATS), which would weaken mercury emissions limits from U.S. fossil fuel power plants by 70 percent.
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Air Pollution Cuts in East Asia Likely Accelerated Global Warming
A new study finds that some forms of air pollution in the atmosphere have helped shade the Earth’s surface from the sun’s energy.
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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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A New Way to Rank Countries on Successful Aging
Is there a comprehensive way to define successful aging? Ng Kah Long analyzed existing population indexes before choosing to construct his own.
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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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Huge Areas May Face Possibly Fatal Heat Waves if Warming Continues
Even healthy young adults may not be able to survive unless they can access artificial cooling.
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High Heat Is Preferentially Killing the Young, Not the Old, New Research Finds
Young adults and small children are the main victims of extreme heat, according to a study done on mortality in Mexico.
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Remembering Richard Deckelbaum
Jessica Fanzo and Shauna Downs remember their friend and pioneering global heath researcher, Richard Deckelbaum.
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Study Finds Subway Pollution Is Too High—With a Disproportionate Effect on Black and Hispanic Riders
Columbia Climate School researcher Shams Azad analyzed the air pollution on subway platforms and trains in New York City.
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
