World Trade Center
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A Morning That Shook the World: The Seismology of 9/11
Seismologist Won-Young Kim heard the first reports of the World Trade Center attacks while driving to work. Soon, he would be enmeshed in helping figure out exactly what happened, and when.
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The World Trade Center Disaster And Our Toxic World
In a dangerous world we must be vigilant in the face of evil, but we must also do our best to reduce self-inflicted wounds. We can do a better job of detoxifying our technology, and of helping those who are victims of attacks and disasters. We owe it to our children and the planet they…
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World Trade Center Ship Traced to Colonial-Era Philadelphia
Four years ago this month, archeologists monitoring the excavation of the former World Trade Center site uncovered a ghostly surprise: the bones of an ancient sailing ship. In a new study, scientists at Lamont-Doherty Earth Observatory say that an old growth forest in the Philadelphia area supplied the white oak used in the ship’s frame,…
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
