State of the Planet

News from the Columbia Climate School

ENSO2

  • A River Runs Through It: Predicting Floods in the Midwest

    A River Runs Through It: Predicting Floods in the Midwest

    Focusing on the American Midwest, Andrew Robertson analyzes the relationships between floods, weather and climate patters throughout the 20th century.

  • Fears of a Double Dip…La Niña

    Fears of a Double Dip…La Niña

    You’d be forgiven for thinking its 2008 and not just because of the economic uncertainty. Is there a dreaded double dip La Niña in store, too?

  • Climate Forecasting: Oceans, Droughts, Climate Change and Other Tools of the Trade

    Climate Forecasting: Oceans, Droughts, Climate Change and Other Tools of the Trade

    At the International Research Institute for Climate and Society’s monthly climate briefing, talk often focuses on the role that El Niño or La Niña play in driving global climate. With the collapse of La Niña last month, though, IRI’s forecasters now have to rely on different tools to offer forecasts for the coming year. That’s…

  • R.I.P. La Niña

    R.I.P. La Niña

    La Niña, we hardly knew ye. This year’s iteration of the climate phenomenon nearly set records for strength and riled up world weather for nine months. Now it’s dead. What’s next?

  • La Niña Still Hanging On

    La Niña Still Hanging On

    IRI’s latest climate briefing shows a weak La Niña still hanging around. The big question is what will happen next?

  • To Burn, or Not to Burn

    To Burn, or Not to Burn

    A new report by the World Resources Institute showcases IRI’s efforts to get decision makers in Indonesia to change their fire policy, so that it was based on seasonal climate information.

  • La Niña Subsiding, Atlantic Climate Phenomenon Forming

    La Niña Subsiding, Atlantic Climate Phenomenon Forming

    A return to near normal conditions in the Pacific doesn’t mean there aren’t other interesting climatic phenomenon afoot.

  • La Niña Begins to Weaken

    La Niña Begins to Weaken

    The current moderate-strength La Niña is now weakening and is expected to dissipate by late spring, said Tony Barnston, the lead forecaster at the International Research Institute for Climate and Society, which holds a monthly climate briefing. Early February showed the first easing in strength of the cool sea-surface temperatures in the central and eastern…

  • La Niña Rolls On

    La Niña Rolls On

    The current moderate-to-strong La Niña is expected to continue through at least the middle of spring, said forecasters at the International Research Institute for Climate and Society’s monthly climate briefing.

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

  • A River Runs Through It: Predicting Floods in the Midwest

    A River Runs Through It: Predicting Floods in the Midwest

    Focusing on the American Midwest, Andrew Robertson analyzes the relationships between floods, weather and climate patters throughout the 20th century.

  • Fears of a Double Dip…La Niña

    Fears of a Double Dip…La Niña

    You’d be forgiven for thinking its 2008 and not just because of the economic uncertainty. Is there a dreaded double dip La Niña in store, too?

  • Climate Forecasting: Oceans, Droughts, Climate Change and Other Tools of the Trade

    Climate Forecasting: Oceans, Droughts, Climate Change and Other Tools of the Trade

    At the International Research Institute for Climate and Society’s monthly climate briefing, talk often focuses on the role that El Niño or La Niña play in driving global climate. With the collapse of La Niña last month, though, IRI’s forecasters now have to rely on different tools to offer forecasts for the coming year. That’s…

  • R.I.P. La Niña

    R.I.P. La Niña

    La Niña, we hardly knew ye. This year’s iteration of the climate phenomenon nearly set records for strength and riled up world weather for nine months. Now it’s dead. What’s next?

  • La Niña Still Hanging On

    La Niña Still Hanging On

    IRI’s latest climate briefing shows a weak La Niña still hanging around. The big question is what will happen next?

  • To Burn, or Not to Burn

    To Burn, or Not to Burn

    A new report by the World Resources Institute showcases IRI’s efforts to get decision makers in Indonesia to change their fire policy, so that it was based on seasonal climate information.

  • La Niña Subsiding, Atlantic Climate Phenomenon Forming

    La Niña Subsiding, Atlantic Climate Phenomenon Forming

    A return to near normal conditions in the Pacific doesn’t mean there aren’t other interesting climatic phenomenon afoot.

  • La Niña Begins to Weaken

    La Niña Begins to Weaken

    The current moderate-strength La Niña is now weakening and is expected to dissipate by late spring, said Tony Barnston, the lead forecaster at the International Research Institute for Climate and Society, which holds a monthly climate briefing. Early February showed the first easing in strength of the cool sea-surface temperatures in the central and eastern…

  • La Niña Rolls On

    La Niña Rolls On

    The current moderate-to-strong La Niña is expected to continue through at least the middle of spring, said forecasters at the International Research Institute for Climate and Society’s monthly climate briefing.