State of the Planet

News from the Columbia Climate School

When Oceans Leak2

  • Setting Off for Two Months at Sea

    Setting Off for Two Months at Sea

    Sidney Hemming and the scientists aboard the JOIDES Resolution conduct the final preparations for their research cruise off southern Africa and introduce a girls’ school group from Mauritius to science at sea.

  • Uncovering the Stories of Southern Africa’s Climate Past

    Uncovering the Stories of Southern Africa’s Climate Past

    Sidney Hemming is preparing to spend two months at sea studying global ocean circulation and southern Africa’s climate variability over the past 5 million years.

Photo of the Earth from space with the text "Lamont at AGU25" on top.

AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More

  • Setting Off for Two Months at Sea

    Setting Off for Two Months at Sea

    Sidney Hemming and the scientists aboard the JOIDES Resolution conduct the final preparations for their research cruise off southern Africa and introduce a girls’ school group from Mauritius to science at sea.

  • Uncovering the Stories of Southern Africa’s Climate Past

    Uncovering the Stories of Southern Africa’s Climate Past

    Sidney Hemming is preparing to spend two months at sea studying global ocean circulation and southern Africa’s climate variability over the past 5 million years.