State of the Planet

News from the Columbia Climate School

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  • The Changing Climate of Security

    The Changing Climate of Security

    In the November Democratic presidential primary debate, Sen. Bernie Sanders said that the greatest threat to national security was climate change. But is there actually a link between national security and climate change, and if so, what is it?

  • Singing the Blues About Water Scarcity

    Singing the Blues About Water Scarcity

    Otis Redding sang “you don’t miss your water ’til your well runs dry” in 1965 about pining for a lost love. Last week, Climate and Society founder and Lamont-Doherty Earth Observatory scientist Mark Cane reprised it with a much different, more literal focus: water scarcity in the 21st century.

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

  • The Changing Climate of Security

    The Changing Climate of Security

    In the November Democratic presidential primary debate, Sen. Bernie Sanders said that the greatest threat to national security was climate change. But is there actually a link between national security and climate change, and if so, what is it?

  • Singing the Blues About Water Scarcity

    Singing the Blues About Water Scarcity

    Otis Redding sang “you don’t miss your water ’til your well runs dry” in 1965 about pining for a lost love. Last week, Climate and Society founder and Lamont-Doherty Earth Observatory scientist Mark Cane reprised it with a much different, more literal focus: water scarcity in the 21st century.