State of the Planet

News from the Columbia Climate School

Lamont-Doherty Earth Observatory122

  • Wind-Blown Antarctic Sea Ice Helps Drive Ocean Circulation

    Wind-Blown Antarctic Sea Ice Helps Drive Ocean Circulation

    Antarctic sea ice is constantly on the move as powerful winds blow it away from the coast and out toward the open ocean. A new study shows how that ice migration may be more important for the global ocean circulation than anyone realized.

  • Watch Live: Turning CO2 to Stone, Scientists Discuss a Climate Solution

    Watch Live: Turning CO2 to Stone, Scientists Discuss a Climate Solution

    On June 24, a scientist involved in the CarbFix carbon capture and storage project in Iceland will give a live-streamed presentation about the technology and the project’s success at turning CO2 to stone.

  • Get the Facts: Arsenic in New Jersey Well Water

    Get the Facts: Arsenic in New Jersey Well Water

    A new initiative aims to help homeowners in New Jersey cope with arsenic contamination in private wells—a problem that has only come to light in recent years, and about which many homeowners are still unaware.

  • An Ecological Traffic Jam in the Warming Tropics?

    An Ecological Traffic Jam in the Warming Tropics?

    The tropics are already hot, and they’re getting hotter as global temperatures rise. A new study offers a glimpse into how seriously a couple more degrees could disrupt the region’s ecological map.

  • Photo Essay: Seeking Humanity’s Roots

    Photo Essay: Seeking Humanity’s Roots

    East Africa’s rift valley is considered by many to be the cradle of humanity. In the Turkana region of northwest Kenya, researchers Christopher Lepre and Tanzhuo Liu of Columbia University’s Lamont-Doherty Earth Observatory are cooperating with colleagues to study questions of human evolution, from the creation of the earliest stone tools to climate swings that…

  • Seeking Humanity’s Roots

    Seeking Humanity’s Roots

    Who were our earliest ancestors? How and when did they evolve into modern humans? And how do we define “human,” anyway? Scientists are exploring Kenya’s Lake Turkana basin to help answer these questions.

  • Crushing Ice to Learn About Glaciers & Icy Moons

    Crushing Ice to Learn About Glaciers & Icy Moons

    To understand how quickly ice from glaciers can raise sea level or how moons far across the solar system evolved to hold vast, ice-covered oceans, we need to be able to measure the forces at work. A new instrument designed and built at Lamont does just that.

  • New Support For Human Evolution In Grasslands

    A 24 Million-Year Record of African Plants Plumbs Deep Past

  • The Plate Tectonics Revolution: It Was All About the Data

    The Plate Tectonics Revolution: It Was All About the Data

    The young scientists who led the plate tectonics revolution 50 years ago showed how asking the right questions and having access to a wide range of shared data could open doors to an entirely new understanding of our planet.

Colorful icons representing nature, sustainable living, and renewable energy with text "Earth Day 2026"

The first Earth Day in 1970 ignited a movement to stop polluting our planet. Today, our scientists and experts are tackling the most pressing challenges to achieve real-world impact. This Earth Day, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.

  • Wind-Blown Antarctic Sea Ice Helps Drive Ocean Circulation

    Wind-Blown Antarctic Sea Ice Helps Drive Ocean Circulation

    Antarctic sea ice is constantly on the move as powerful winds blow it away from the coast and out toward the open ocean. A new study shows how that ice migration may be more important for the global ocean circulation than anyone realized.

  • Watch Live: Turning CO2 to Stone, Scientists Discuss a Climate Solution

    Watch Live: Turning CO2 to Stone, Scientists Discuss a Climate Solution

    On June 24, a scientist involved in the CarbFix carbon capture and storage project in Iceland will give a live-streamed presentation about the technology and the project’s success at turning CO2 to stone.

  • Get the Facts: Arsenic in New Jersey Well Water

    Get the Facts: Arsenic in New Jersey Well Water

    A new initiative aims to help homeowners in New Jersey cope with arsenic contamination in private wells—a problem that has only come to light in recent years, and about which many homeowners are still unaware.

  • An Ecological Traffic Jam in the Warming Tropics?

    An Ecological Traffic Jam in the Warming Tropics?

    The tropics are already hot, and they’re getting hotter as global temperatures rise. A new study offers a glimpse into how seriously a couple more degrees could disrupt the region’s ecological map.

  • Photo Essay: Seeking Humanity’s Roots

    Photo Essay: Seeking Humanity’s Roots

    East Africa’s rift valley is considered by many to be the cradle of humanity. In the Turkana region of northwest Kenya, researchers Christopher Lepre and Tanzhuo Liu of Columbia University’s Lamont-Doherty Earth Observatory are cooperating with colleagues to study questions of human evolution, from the creation of the earliest stone tools to climate swings that…

  • Seeking Humanity’s Roots

    Seeking Humanity’s Roots

    Who were our earliest ancestors? How and when did they evolve into modern humans? And how do we define “human,” anyway? Scientists are exploring Kenya’s Lake Turkana basin to help answer these questions.

  • Crushing Ice to Learn About Glaciers & Icy Moons

    Crushing Ice to Learn About Glaciers & Icy Moons

    To understand how quickly ice from glaciers can raise sea level or how moons far across the solar system evolved to hold vast, ice-covered oceans, we need to be able to measure the forces at work. A new instrument designed and built at Lamont does just that.

  • New Support For Human Evolution In Grasslands

    A 24 Million-Year Record of African Plants Plumbs Deep Past

  • The Plate Tectonics Revolution: It Was All About the Data

    The Plate Tectonics Revolution: It Was All About the Data

    The young scientists who led the plate tectonics revolution 50 years ago showed how asking the right questions and having access to a wide range of shared data could open doors to an entirely new understanding of our planet.