State of the Planet

News from the Columbia Climate School

research roundup

  • September Research Roundup: Select Papers

    September Research Roundup: Select Papers

    In this month’s edition of our research roundup, we look at the impact of suspending U.S. embassy reporting on air quality; why two extreme heatwaves had different impacts; and how to make vulnerable populations in smaller cities more visible.

  • August Research Roundup: Select Papers

    August Research Roundup: Select Papers

    This month, we covered a long-term analysis suggesting that landfill methane emissions may be far higher than estimated, as well as new research on unexpected trends in U.S. extreme rainfall. Here are additional studies worth noting.

  • July Research Roundup: Select Papers

    July Research Roundup: Select Papers

    This month, we covered the 2026 Environmental Performance Index; how gas bubbles shaped Kīlauea’s lava flow; and the Pacific’s contrasting effects on wildfires. Here are some additional studies worth noting.

  • June Research Roundup: Select Papers

    June Research Roundup: Select Papers

    In this month’s edition of our research roundup, we highlight a new study on African air pollution; deep Earth carbon recycling; and a Pacific cooling mystery.

Collage of Turkiye beach scene and Columbia University Campus with text: UN Climate Change Conference COP31, Antalya, Turkiye, Nov 9-20, 2026

COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More

  • September Research Roundup: Select Papers

    September Research Roundup: Select Papers

    In this month’s edition of our research roundup, we look at the impact of suspending U.S. embassy reporting on air quality; why two extreme heatwaves had different impacts; and how to make vulnerable populations in smaller cities more visible.

  • August Research Roundup: Select Papers

    August Research Roundup: Select Papers

    This month, we covered a long-term analysis suggesting that landfill methane emissions may be far higher than estimated, as well as new research on unexpected trends in U.S. extreme rainfall. Here are additional studies worth noting.

  • July Research Roundup: Select Papers

    July Research Roundup: Select Papers

    This month, we covered the 2026 Environmental Performance Index; how gas bubbles shaped Kīlauea’s lava flow; and the Pacific’s contrasting effects on wildfires. Here are some additional studies worth noting.

  • June Research Roundup: Select Papers

    June Research Roundup: Select Papers

    In this month’s edition of our research roundup, we highlight a new study on African air pollution; deep Earth carbon recycling; and a Pacific cooling mystery.