State of the Planet

News from the Columbia Climate School

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  • Reactions from Earth Institute Experts on Trump Pulling out of Paris

    Reactions from Earth Institute Experts on Trump Pulling out of Paris

    Experts from across the Earth Institute give their reactions to the news that the U.S. will exit the Paris climate agreement.

  • ‘We are Headed Towards Hostile State of the Climate System’

    ‘We are Headed Towards Hostile State of the Climate System’

    Yochanan Kushnir: “As a climate scientist who directly engages in studying the phenomena and mechanisms of climate variability and change I am convinced that we are headed towards a different, and to many people hostile, state of the climate system, with a worldwide impact including many parts of the U.S.”

  • The Paris Climate Agreement: What Trump’s Decision to Leave Means

    The Paris Climate Agreement: What Trump’s Decision to Leave Means

    In the wake of the decision by the Trump administration to withdraw from the 2015 Paris climate agreement, several questions have emerged about what withdrawal means for environmental policy, research and innovation.

  • In a Warmer World, Expect the Wet to Get Wetter, and the Dry, Drier

    In a Warmer World, Expect the Wet to Get Wetter, and the Dry, Drier

    As the world warms due to human-induced climate change, many scientists have been projecting that global rainfall patterns will shift. In the latest such study, two leading researchers map out how seasonal shifts may affect water resources across the planet.

  • Trump’s Relevance on Climate Change

    Trump’s Relevance on Climate Change

    While Fortune 500 companies, our state and local governments, and foreign countries are all beginning the transition from fossil fuels to renewable energy, the current U.S. federal government refuses to see the danger of climate change or the economic opportunities presented by modernizing our energy system.

  • Richard Seager Sees Hand of Climate Change in Drought

    Richard Seager Sees Hand of Climate Change in Drought

    California’s wet and snowy winter brings welcome relief from a years-long drought that has challenged the state’s water supply and agricultural system. But climate scientist Richard Seager of Lamont Doherty Earth Observatory offers words of caution: Remember what happened, because it will happen again.

  • Climate Change Litigation Growing Rapidly, Says Global Study

    Climate Change Litigation Growing Rapidly, Says Global Study

    A new global study has found that the number of lawsuits involving climate change has tripled since 2014, with the United States leading the way.

  • Lamont Scientists Are Focus of NY Times Multimedia Series

    Lamont Scientists Are Focus of NY Times Multimedia Series

    This past winter, reporters from the New York Times went along for the ride with scientists from the Lamont-Doherty Earth Observatory as they flew their mission of discovery over Antarctica.

  • Researchers Model Differences in East Coast Sea Level Rise

    Researchers Model Differences in East Coast Sea Level Rise

    For years, scientists have been warning of a so-called “hot spot” of accelerated sea-level rise along the northeastern U.S. coast. But accurately modeling this acceleration as well as variations in sea-level rise from one region to another has proven challenging. Now new research offers the first comprehensive model for understanding differences in sea level rise…

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.

  • Reactions from Earth Institute Experts on Trump Pulling out of Paris

    Reactions from Earth Institute Experts on Trump Pulling out of Paris

    Experts from across the Earth Institute give their reactions to the news that the U.S. will exit the Paris climate agreement.

  • ‘We are Headed Towards Hostile State of the Climate System’

    ‘We are Headed Towards Hostile State of the Climate System’

    Yochanan Kushnir: “As a climate scientist who directly engages in studying the phenomena and mechanisms of climate variability and change I am convinced that we are headed towards a different, and to many people hostile, state of the climate system, with a worldwide impact including many parts of the U.S.”

  • The Paris Climate Agreement: What Trump’s Decision to Leave Means

    The Paris Climate Agreement: What Trump’s Decision to Leave Means

    In the wake of the decision by the Trump administration to withdraw from the 2015 Paris climate agreement, several questions have emerged about what withdrawal means for environmental policy, research and innovation.

  • In a Warmer World, Expect the Wet to Get Wetter, and the Dry, Drier

    In a Warmer World, Expect the Wet to Get Wetter, and the Dry, Drier

    As the world warms due to human-induced climate change, many scientists have been projecting that global rainfall patterns will shift. In the latest such study, two leading researchers map out how seasonal shifts may affect water resources across the planet.

  • Trump’s Relevance on Climate Change

    Trump’s Relevance on Climate Change

    While Fortune 500 companies, our state and local governments, and foreign countries are all beginning the transition from fossil fuels to renewable energy, the current U.S. federal government refuses to see the danger of climate change or the economic opportunities presented by modernizing our energy system.

  • Richard Seager Sees Hand of Climate Change in Drought

    Richard Seager Sees Hand of Climate Change in Drought

    California’s wet and snowy winter brings welcome relief from a years-long drought that has challenged the state’s water supply and agricultural system. But climate scientist Richard Seager of Lamont Doherty Earth Observatory offers words of caution: Remember what happened, because it will happen again.

  • Climate Change Litigation Growing Rapidly, Says Global Study

    Climate Change Litigation Growing Rapidly, Says Global Study

    A new global study has found that the number of lawsuits involving climate change has tripled since 2014, with the United States leading the way.

  • Lamont Scientists Are Focus of NY Times Multimedia Series

    Lamont Scientists Are Focus of NY Times Multimedia Series

    This past winter, reporters from the New York Times went along for the ride with scientists from the Lamont-Doherty Earth Observatory as they flew their mission of discovery over Antarctica.

  • Researchers Model Differences in East Coast Sea Level Rise

    Researchers Model Differences in East Coast Sea Level Rise

    For years, scientists have been warning of a so-called “hot spot” of accelerated sea-level rise along the northeastern U.S. coast. But accurately modeling this acceleration as well as variations in sea-level rise from one region to another has proven challenging. Now new research offers the first comprehensive model for understanding differences in sea level rise…