State of the Planet

News from the Columbia Climate School

Dorothy Marie Peteet

  • Science for the Planet: Why Marshes Must Be Preserved

    Science for the Planet: Why Marshes Must Be Preserved

    While collecting sediment cores from a New York City coastal marsh, botanist and climatologist Dorothy Peteet explains how such ecosystems store massive amounts of carbon, but are under threat from sea-level rise.

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

  • Science for the Planet: Why Marshes Must Be Preserved

    Science for the Planet: Why Marshes Must Be Preserved

    While collecting sediment cores from a New York City coastal marsh, botanist and climatologist Dorothy Peteet explains how such ecosystems store massive amounts of carbon, but are under threat from sea-level rise.