State of the Planet

News from the Columbia Climate School

Climate161

  • 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…

  • A First Meeting with an Old Friend

    A First Meeting with an Old Friend

    If you have studied the impacts of climate on Antarctica you have encountered Pine Island Glacier. Tucked in at an angle under the West Antarctic Peninsula handle, this seemingly innocuous glacier has been making headlines for years as one of the fastest flowing ice stream glaciers on Earth.

  • 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.

  • Year by Year, Line by Line, We Build an Image of Getz Ice Shelf

    Year by Year, Line by Line, We Build an Image of Getz Ice Shelf

    Changes in Antarctic ice have been dominated by the interaction of the ice and the ocean, and because ice shelves extend out into the water they are vulnerable to melt from the warmer ocean water. Melt can affect them in two ways, through thinning along their length and through causing a retreat of the “grounding…

  • How to Prep a City for Climate Change

    How to Prep a City for Climate Change

    Cities around the world already have begun responding to climate change, and a new report from the Earth Institute provides a deep analysis about the risks they face and a detailed look at what some cities are doing about it.

  • Toward a Carbon-Neutral Future: Why Land and Resource Rights Matter

    Toward a Carbon-Neutral Future: Why Land and Resource Rights Matter

    Climate change is a destabilizing force that touches all sectors of society, whether agriculture, forestry, infrastructure, energy, water or health. The inherently intertwined and complex nature of climate change impacts means that strong institutions, laws and policies are critical to ensuring that these impacts don’t impinge on the rights of local populations. Key among these…

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.

  • 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…

  • A First Meeting with an Old Friend

    A First Meeting with an Old Friend

    If you have studied the impacts of climate on Antarctica you have encountered Pine Island Glacier. Tucked in at an angle under the West Antarctic Peninsula handle, this seemingly innocuous glacier has been making headlines for years as one of the fastest flowing ice stream glaciers on Earth.

  • 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.

  • Year by Year, Line by Line, We Build an Image of Getz Ice Shelf

    Year by Year, Line by Line, We Build an Image of Getz Ice Shelf

    Changes in Antarctic ice have been dominated by the interaction of the ice and the ocean, and because ice shelves extend out into the water they are vulnerable to melt from the warmer ocean water. Melt can affect them in two ways, through thinning along their length and through causing a retreat of the “grounding…

  • How to Prep a City for Climate Change

    How to Prep a City for Climate Change

    Cities around the world already have begun responding to climate change, and a new report from the Earth Institute provides a deep analysis about the risks they face and a detailed look at what some cities are doing about it.

  • Toward a Carbon-Neutral Future: Why Land and Resource Rights Matter

    Toward a Carbon-Neutral Future: Why Land and Resource Rights Matter

    Climate change is a destabilizing force that touches all sectors of society, whether agriculture, forestry, infrastructure, energy, water or health. The inherently intertwined and complex nature of climate change impacts means that strong institutions, laws and policies are critical to ensuring that these impacts don’t impinge on the rights of local populations. Key among these…