State of the Planet

News from the Columbia Climate School

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  • You Asked: Can the Great Green Wall Stop the Sahara From Expanding?

    You Asked: Can the Great Green Wall Stop the Sahara From Expanding?

    A climate scientist answers readers’ questions about an initiative that would plant a vast wall of trees to combat the effects of climate change.

  • Our Newest SEE-U Field Site in Jordan

    Our Newest SEE-U Field Site in Jordan

    In partnership with Columbia’s Global Center in Amman, the Columbia University Middle East Research Center, undergraduate students of all majors have the unique opportunity to study ecosystems and environmental sustainability in Jordan.

Blue banner with kids and Earth photos. Text: "Lamont-Doherty Earth Observatory Open House, Saturday, October 17, 2026, 10am-4pm.

On Saturday, October 17, 2026 from 10am to 4pm, Lamont-Doherty Earth Observatory Open House—our biggest, best science fun and discovery event of the year—will take place on our beautiful campus in Palisades, NY. Mark your calendar and join us for this free, family-friendly celebration of science! RSVP Today!

  • You Asked: Can the Great Green Wall Stop the Sahara From Expanding?

    You Asked: Can the Great Green Wall Stop the Sahara From Expanding?

    A climate scientist answers readers’ questions about an initiative that would plant a vast wall of trees to combat the effects of climate change.

  • Our Newest SEE-U Field Site in Jordan

    Our Newest SEE-U Field Site in Jordan

    In partnership with Columbia’s Global Center in Amman, the Columbia University Middle East Research Center, undergraduate students of all majors have the unique opportunity to study ecosystems and environmental sustainability in Jordan.