State of the Planet

News from the Columbia Climate School

climate science24

  • It’s Beginning to Look Not a Lot Like Christmas

    It’s Beginning to Look Not a Lot Like Christmas

    Much of the eastern two-thirds of the United States was balmy on Christmas Day, with high temperatures more than 20°F above average from Texas to Maine. According to NOAA, 789 daily high temperature records were tied or broken on Christmas Eve and Christmas Day in the continental United States. What’s behind this unusual weather?

  • New App Explores Ice and Sea Level Change Through Time

    Lamont-Doherty Scientists Create ‘Polar Explorer: Sea Level’

  • Sea Level Rise: How Much, How Fast?

    Sea Level Rise: How Much, How Fast?

    By studying modeled climate evidence from the last interglacial period, the team concluded that the warming going on today risks setting off “feedbacks” in the climate system.

  • World Wildlife Fund, Earth Institute Form New Partnership

    World Wildlife Fund, Earth Institute Form New Partnership

    The World Wildlife Fund will collaborate with the Earth Institute’s Center for Climate Systems Research to advance adaptation to the impacts of climate change around the globe. The partners will create new ways of generating climate risk information and embedding it into the World Wildlife Fund’s conservation and development planning, policies and practice.

  • Conversations with a Climatologist

    Conversations with a Climatologist

    Tony Barnston, a scientist at the International Research Institute for Climate and Society, took a few hours out of his day and answered questions on a Reddit “Ask Me Anything” session.

  • What Everyone Should Know About Climate Change

    What Everyone Should Know About Climate Change

    Young scientists sum it up: The climate is changing. We’re causing it. It’s going affect everyone, and be expensive. But we can do something about it. Watch the video…

  • The Paris Climate Summit: Resources for Journalists

    The Paris Climate Summit: Resources for Journalists

    Many experts at Columbia University’s Earth Institute are attending or closely watching the Paris climate summit. These include world authorities on climate science, politics, law, natural resources, national security, health and other fields, who can offer expert analysis to journalists. Here’s a guide to resources that journalists covering the summit can tap.

  • In 2015: Hot, Wet and Opinionated

    In 2015: Hot, Wet and Opinionated

    This year is shaping up to be the warmest year on record since 1880, according to new data from the National Oceanic and Atmospheric Administration. And, perhaps not so coincidentally, a new poll says more people in the United States are coming around to the view that climate change is happening.

  • Climate Change Leaves Its Mark on the Sea Floor? Maybe Not

    Climate Change Leaves Its Mark on the Sea Floor? Maybe Not

    A new study in Science questions the provocative idea that climate change may shape the texture of the sea floor. A Snickers bar helps explain what’s really going on.

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.

  • It’s Beginning to Look Not a Lot Like Christmas

    It’s Beginning to Look Not a Lot Like Christmas

    Much of the eastern two-thirds of the United States was balmy on Christmas Day, with high temperatures more than 20°F above average from Texas to Maine. According to NOAA, 789 daily high temperature records were tied or broken on Christmas Eve and Christmas Day in the continental United States. What’s behind this unusual weather?

  • New App Explores Ice and Sea Level Change Through Time

    Lamont-Doherty Scientists Create ‘Polar Explorer: Sea Level’

  • Sea Level Rise: How Much, How Fast?

    Sea Level Rise: How Much, How Fast?

    By studying modeled climate evidence from the last interglacial period, the team concluded that the warming going on today risks setting off “feedbacks” in the climate system.

  • World Wildlife Fund, Earth Institute Form New Partnership

    World Wildlife Fund, Earth Institute Form New Partnership

    The World Wildlife Fund will collaborate with the Earth Institute’s Center for Climate Systems Research to advance adaptation to the impacts of climate change around the globe. The partners will create new ways of generating climate risk information and embedding it into the World Wildlife Fund’s conservation and development planning, policies and practice.

  • Conversations with a Climatologist

    Conversations with a Climatologist

    Tony Barnston, a scientist at the International Research Institute for Climate and Society, took a few hours out of his day and answered questions on a Reddit “Ask Me Anything” session.

  • What Everyone Should Know About Climate Change

    What Everyone Should Know About Climate Change

    Young scientists sum it up: The climate is changing. We’re causing it. It’s going affect everyone, and be expensive. But we can do something about it. Watch the video…

  • The Paris Climate Summit: Resources for Journalists

    The Paris Climate Summit: Resources for Journalists

    Many experts at Columbia University’s Earth Institute are attending or closely watching the Paris climate summit. These include world authorities on climate science, politics, law, natural resources, national security, health and other fields, who can offer expert analysis to journalists. Here’s a guide to resources that journalists covering the summit can tap.

  • In 2015: Hot, Wet and Opinionated

    In 2015: Hot, Wet and Opinionated

    This year is shaping up to be the warmest year on record since 1880, according to new data from the National Oceanic and Atmospheric Administration. And, perhaps not so coincidentally, a new poll says more people in the United States are coming around to the view that climate change is happening.

  • Climate Change Leaves Its Mark on the Sea Floor? Maybe Not

    Climate Change Leaves Its Mark on the Sea Floor? Maybe Not

    A new study in Science questions the provocative idea that climate change may shape the texture of the sea floor. A Snickers bar helps explain what’s really going on.