State of the Planet

News from the Columbia Climate School

Climate158

  • Scientists Say They Now Know Why Antarctic Meltwater Stays Below Ocean Surface

    Scientists Say They Now Know Why Antarctic Meltwater Stays Below Ocean Surface

    Up to now, it has been a mystery why much of the fresh water resulting from the melting of Antarctic ice shelves ends up in the depths instead of floating above saltier, denser ocean waters. Scientists working along one major ice shelf believe they have found the answer.

  • Ideology and Environmental Protection

    Ideology and Environmental Protection

    With the phrase “climate change” disappearing from U.S. federal government websites and increased talk of regulatory overreach, it is obvious that protecting the environment will continue to be a fault line in American political ideology. However, though ideology will shape the nature and speed of response, the environmental problem is real and cannot be ignored.

  • Tracking the Undoing of Climate-Change Measures

    Tracking the Undoing of Climate-Change Measures

    The Sabin Center for Climate Change Law is launching a new tool to identify and explain the efforts taken by the incoming administration to scale back or wholly eliminate federal climate change mitigation and adaptation measures.

  • ‘Tail Risk’: a Chat with Scientist Radley Horton

    ‘Tail Risk’: a Chat with Scientist Radley Horton

    We’re talking to experts around the Earth Institute about what they’re working on, what they would like people to know about it, and what inspired them to go into their field.

  • Two Who Enabled El Niño Forecasts Win 2017 Vetlesen Prize

    Warning Signs Now Applied Globally to Farming, Health, Water Issues

  • Antarctic Scientists Honor Obama by Collecting Climate Data

    Antarctic Scientists Honor Obama by Collecting Climate Data

    Researchers studying the West Antarctic Peninsula marine ecosystem will recognize President Obama’s efforts to combat global warming by collecting climate data at an oceanographic station they named for the 44th president.

  • 2016 Sets Another Record for Warmth

    2016 Sets Another Record for Warmth

    The news doesn’t come as a surprise to scientists and others who’ve been watching, but marks a milestone nonetheless: 2016 was the warmest year on record, dating back to the start of modern record keeping in 1880.

  • Green Sahara’s Ancient Rainfall Regime Revealed

    Green Sahara’s Ancient Rainfall Regime Revealed

    Rainfall patterns in the Sahara during the six-thousand-year “Green Sahara” period have been revealed by analyzing marine sediments, according to new research.

  • What You Can Do to Keep Us Moving Forward on Climate

    What You Can Do to Keep Us Moving Forward on Climate

    Many people are concerned that the Republican-controlled Congress and Trump’s administration will stop or reverse the progress the Obama administration has made on climate change. Here’s what you can do about it.

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.

  • Scientists Say They Now Know Why Antarctic Meltwater Stays Below Ocean Surface

    Scientists Say They Now Know Why Antarctic Meltwater Stays Below Ocean Surface

    Up to now, it has been a mystery why much of the fresh water resulting from the melting of Antarctic ice shelves ends up in the depths instead of floating above saltier, denser ocean waters. Scientists working along one major ice shelf believe they have found the answer.

  • Ideology and Environmental Protection

    Ideology and Environmental Protection

    With the phrase “climate change” disappearing from U.S. federal government websites and increased talk of regulatory overreach, it is obvious that protecting the environment will continue to be a fault line in American political ideology. However, though ideology will shape the nature and speed of response, the environmental problem is real and cannot be ignored.

  • Tracking the Undoing of Climate-Change Measures

    Tracking the Undoing of Climate-Change Measures

    The Sabin Center for Climate Change Law is launching a new tool to identify and explain the efforts taken by the incoming administration to scale back or wholly eliminate federal climate change mitigation and adaptation measures.

  • ‘Tail Risk’: a Chat with Scientist Radley Horton

    ‘Tail Risk’: a Chat with Scientist Radley Horton

    We’re talking to experts around the Earth Institute about what they’re working on, what they would like people to know about it, and what inspired them to go into their field.

  • Two Who Enabled El Niño Forecasts Win 2017 Vetlesen Prize

    Warning Signs Now Applied Globally to Farming, Health, Water Issues

  • Antarctic Scientists Honor Obama by Collecting Climate Data

    Antarctic Scientists Honor Obama by Collecting Climate Data

    Researchers studying the West Antarctic Peninsula marine ecosystem will recognize President Obama’s efforts to combat global warming by collecting climate data at an oceanographic station they named for the 44th president.

  • 2016 Sets Another Record for Warmth

    2016 Sets Another Record for Warmth

    The news doesn’t come as a surprise to scientists and others who’ve been watching, but marks a milestone nonetheless: 2016 was the warmest year on record, dating back to the start of modern record keeping in 1880.

  • Green Sahara’s Ancient Rainfall Regime Revealed

    Green Sahara’s Ancient Rainfall Regime Revealed

    Rainfall patterns in the Sahara during the six-thousand-year “Green Sahara” period have been revealed by analyzing marine sediments, according to new research.

  • What You Can Do to Keep Us Moving Forward on Climate

    What You Can Do to Keep Us Moving Forward on Climate

    Many people are concerned that the Republican-controlled Congress and Trump’s administration will stop or reverse the progress the Obama administration has made on climate change. Here’s what you can do about it.