State of the Planet

News from the Columbia Climate School

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  • The Undermining of Climate Science

    The Undermining of Climate Science

    The election of Donald Trump has climate scientists concerned about its implications for U.S. environmental policies and worldwide efforts to curb the effects of climate change. Many fear that climate science under Trump could be strategically undermined in a variety of ways.

  • Most of Greenland Ice Melted to Bedrock in Recent Geologic Past, Says Study

    Finding Suggests the Ice Sheet Is More Vulnerable Than Thought

  • When Permafrost Melts, What Happens to All That Stored Carbon?

    When Permafrost Melts, What Happens to All That Stored Carbon?

    A new study documents evidence of a massive release of carbon from Siberian permafrost as temperatures rose at the end of the last ice age.

  • Earth Observation Science, Public Policymaking, and the Trump Administration

    Earth Observation Science, Public Policymaking, and the Trump Administration

    We do not know enough about our planet and the impact of human technology on its basic systems. It is beyond idiotic to think we can grow our population and consumption this much, this quickly, and have no impact. But it is also foolish to overstate what we know and ask policymakers to invest trillions…

  • Photo Essay: Where the Trees Meet the Tundra

    Photo Essay: Where the Trees Meet the Tundra

    Due to warming climate and increasing human exploitation, far northern forests and the tundra beyond are undergoing rapid changes. In northern Alaska, scientists from Columbia University’s Lamont-Doherty Earth Observatory and other institutions are studying the responses of trees at the very edge of their range.

  • Where Trees Meet Tundra, Decoding Signals of Climate Change

    Where Trees Meet Tundra, Decoding Signals of Climate Change

    In northern Alaska’s Brooks Range, the earth as most of us know it comes to an end. The northern tree line-a boundary that circles all of earth’s northern landmasses for more than 8,300 miles, and forms the planet’s biggest ecological transition zone–runs through here. Scientists from Columbia University’s Lamont-Doherty Earth Observatory are studying how climate…

  • Climate Change Under Trump:    A Q&A with Michael Gerrard

    Climate Change Under Trump: A Q&A with Michael Gerrard

    For those who favor strong action on climate change, the election of Donald Trump is creating plenty of anxiety and concern. Will Trump set our efforts to curb climate change back? How can those who are concerned about climate change best fight back?

  • The Domino Effect

    The Domino Effect

    Ice shelves can behave like dominos. When they are lined up and the first one collapses it can cause a rippling effect like dominos. We have seen this with the Larsen Ice Shelves. Named in series, the Larsen A, B and C shelves extended along the northeastern edge of the West Antarctic Peninsula, and covered…

  • Cities: the Vanguard Against Climate Change

    Cities: the Vanguard Against Climate Change

    Cities are leading the fight against climate change. Here’s what some of the most forward-looking ones are doing.

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.

  • The Undermining of Climate Science

    The Undermining of Climate Science

    The election of Donald Trump has climate scientists concerned about its implications for U.S. environmental policies and worldwide efforts to curb the effects of climate change. Many fear that climate science under Trump could be strategically undermined in a variety of ways.

  • Most of Greenland Ice Melted to Bedrock in Recent Geologic Past, Says Study

    Finding Suggests the Ice Sheet Is More Vulnerable Than Thought

  • When Permafrost Melts, What Happens to All That Stored Carbon?

    When Permafrost Melts, What Happens to All That Stored Carbon?

    A new study documents evidence of a massive release of carbon from Siberian permafrost as temperatures rose at the end of the last ice age.

  • Earth Observation Science, Public Policymaking, and the Trump Administration

    Earth Observation Science, Public Policymaking, and the Trump Administration

    We do not know enough about our planet and the impact of human technology on its basic systems. It is beyond idiotic to think we can grow our population and consumption this much, this quickly, and have no impact. But it is also foolish to overstate what we know and ask policymakers to invest trillions…

  • Photo Essay: Where the Trees Meet the Tundra

    Photo Essay: Where the Trees Meet the Tundra

    Due to warming climate and increasing human exploitation, far northern forests and the tundra beyond are undergoing rapid changes. In northern Alaska, scientists from Columbia University’s Lamont-Doherty Earth Observatory and other institutions are studying the responses of trees at the very edge of their range.

  • Where Trees Meet Tundra, Decoding Signals of Climate Change

    Where Trees Meet Tundra, Decoding Signals of Climate Change

    In northern Alaska’s Brooks Range, the earth as most of us know it comes to an end. The northern tree line-a boundary that circles all of earth’s northern landmasses for more than 8,300 miles, and forms the planet’s biggest ecological transition zone–runs through here. Scientists from Columbia University’s Lamont-Doherty Earth Observatory are studying how climate…

  • Climate Change Under Trump:    A Q&A with Michael Gerrard

    Climate Change Under Trump: A Q&A with Michael Gerrard

    For those who favor strong action on climate change, the election of Donald Trump is creating plenty of anxiety and concern. Will Trump set our efforts to curb climate change back? How can those who are concerned about climate change best fight back?

  • The Domino Effect

    The Domino Effect

    Ice shelves can behave like dominos. When they are lined up and the first one collapses it can cause a rippling effect like dominos. We have seen this with the Larsen Ice Shelves. Named in series, the Larsen A, B and C shelves extended along the northeastern edge of the West Antarctic Peninsula, and covered…

  • Cities: the Vanguard Against Climate Change

    Cities: the Vanguard Against Climate Change

    Cities are leading the fight against climate change. Here’s what some of the most forward-looking ones are doing.