Tree ring research was a young field in 1975 when Ed Cook (above, in Nepal) and Gordon Jacoby founded the Tree Ring Lab at Lamont. The Lab would become a world leader in tree ring sampling and analysis and a source of technology and training for dendrochronologists around the world. Photo by Paul Krusic
Ed Cook in Nepal
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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
