Health30
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Peat Fires Choking Southeast Asia Pose a New Threat to Global Climate
The Indonesian peat fires that have been choking cities across Southeast Asia with a yellow haze are creating more than a local menace—burning peat releases immense stores of CO2, contributing to global warming.
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The Changing Face of Air Quality
Looking at regional differences in PM2.5 concentrations gives us a sense of the changing face of air quality throughout the world.
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Global Nutrition Report Highlights Role of Climate
Climate change is complicating global efforts to end malnutrition. Even small and seasonal fluctuations in climate can have big impacts on food availability.
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EPA Spilled, but Didn’t Dump, the Toxics That Ended up in Colorado’s River
The short-term, expedient result of ignoring environmental impacts may be greater immediate profit for some, but the long-term impact is higher costs and lower profit, and many of those higher costs must be borne by all of us. Many of the companies that made the mess will be long gone before many of the bills…
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Sandy’s Impact Lingers, Particularly for Children
Researchers Find Increased Chances of Mental Health Issues
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Battling ‘the Largest Mass Poisoning in History’
As many as one in five deaths in Bangladesh may be tied to naturally occurring arsenic in the drinking water; it is the epicenter of a worldwide problem that is affecting tens of millions of people. For two decades, health specialists and earth scientists from Columbia University have been trying to understand the problem, and…
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Mobile Health Tools Help Prevent Mother-to-Child Transmission of HIV
Vertical transmission of HIV remains a significant challenge in resource-limited settings today. The number of children living with HIV currently exceeds 3 million, most of them living in Sub-Saharan Africa, with less than a tenth of them being reached with basic health services. This is particularly true in Kenya, where the estimated antiretroviral therapy (ART)…
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Toxic Chemicals All Around Us: Is Green Chemistry the Answer?
We live in a world filled with synthetic chemicals, many with known or suspected health hazards. Can green chemistry, the design of chemical products without hazardous substances, provide a solution?
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Exploring Antarctica by Sea, Air and Land
Lamont Doherty Earth Observatory scientists are among the many researchers currently doing fieldwork in Antarctica. They’re participating in expeditions near, above and on the continent, doing critical studies that will advance understanding of Antarctica’s land and sea processes.
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
