State of the Planet

News from the Columbia Climate School

endangered species2

  • Science Nabs Illegal Ivory Sellers

    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.

  • New Forensic Technique May Help Track Illegal Ivory

    Epic Elephant Slaughter Leads Scientists to Develop Dating Tool

  • 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…

Columbia Climate School Giving Day on October 28, 2026, featuring students and renewable energy imagery

October 28, 2026 is Columbia Giving Day! Your gift to Columbia Climate School helps advance interdisciplinary research, educate the next generation of leaders, and transform bold ideas into real-world solutions for climate, Earth, and society.

  • Science Nabs Illegal Ivory Sellers

    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.

  • New Forensic Technique May Help Track Illegal Ivory

    Epic Elephant Slaughter Leads Scientists to Develop Dating Tool

  • 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…