sustainable
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Ruth DeFries, Jeffrey Sachs Named University Professors
Ruth DeFries and Jeffrey Sachs have been named University Professors, the highest rank Columbia University bestows on its faculty.
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Brownfields: Untold Stories, Unrealized Value
Across the country, in distressed urban centers, hundreds of thousands of industrial sites have been left lying fallow. These properties, known as brownfields, embody the story of America’s twentieth-century industrial might and bear the mark of that period’s unenlightened practices. Their closing and subsequent abandonment culminated in the loss of well-paying manufacturing jobs, the creation…
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
