What We Do2
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Park Williams Discovers History and Science in a Tree Ring
Park Williams studies trees and climate, in particular the causes of drought and the effects of climate change on forests. In this latest in a series of Earth Institute videos, we spoke to him about what he does, what’s important about it, and how his interest in history and environmental science blended into a career.
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Peering into Volcanoes: a Talk with Einat Lev
What do the scientists and researchers around the Earth Institute do? In this second in a series, Einat Lev from the Lamont-Doherty Earth Observatory talks about her work on volcanoes what she’d like people to know about it, and what inspired her to go into the field.
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‘Tail Risk’: a Chat with Scientist Radley Horton
We’re talking to experts around the Earth Institute about what they’re working on, what they would like people to know about it, and what inspired them to go into their field.

COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
