State of the Planet

News from the Columbia Climate School

Miranda Hack

  • How Hard Is It to Dim the Sun?

    How Hard Is It to Dim the Sun?

    Solar radiation management is gaining traction as a climate intervention—but new research warns that real-world constraints make it riskier and more uncertain than most models suggest.

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

  • How Hard Is It to Dim the Sun?

    How Hard Is It to Dim the Sun?

    Solar radiation management is gaining traction as a climate intervention—but new research warns that real-world constraints make it riskier and more uncertain than most models suggest.