endangered species2
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Science Nabs Illegal Ivory Sellers
A Toronto-based company has been convicted of selling illegal ivory in the first case to use a technique for dating ivory developed by a scientist at the Lamont-Doherty Earth Observatory.
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New Forensic Technique May Help Track Illegal Ivory
Epic Elephant Slaughter Leads Scientists to Develop Dating Tool
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We Can’t Separate Climate and Biodiversity
In 1940, after Copenhagen was occupied by Nazi Germany, many of its Jews were saved when Danes and Swedes cooperated to spirit them at night across the narrow strait from the Danish town of Helsingør to the Swedish town of Helsinborg. On the Danish side of the strait, there is now a monument, lit at…
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
