State of the Planet

News from the Columbia Climate School

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  • A Major Legal Victory for Climate Science

    A Major Legal Victory for Climate Science

         Though most attention last week focused on the Supreme Court ruling upholding federal reform of the health-care system, the U.S. Court of Appeals for the District of Columbia issued the most important judicial decision on climate change in five years.  That decision upholds the Environmental Protection Agency’s power to regulate greenhouse gases, and it…

  • When the World Ended in Ice

    When the World Ended in Ice

    A mile or so of glacial ice covering much of North America and plowing down from the north once terminated in the New York metropolitan area, at a front stretching roughly from exit 13 on the New Jersey Turnpike (Rahway), on across southern Staten Island, the Bensonhurst neighborhood of Brooklyn, and northeastward through Long Island. But exactly when that ice started…

  • The Art of Flying

    The Art of Flying

    Flying. It is something we are almost all familiar with, and yet I expect few of us have really sat back to appreciate the actual science of it. For the past 10 weeks we have been flying, not just a day or two a week but five or six days a week depending on the…

  • The ‘Glory’ in Clouds and Other Amazing Sights!

    The ‘Glory’ in Clouds and Other Amazing Sights!

    If you look carefully at the picture below you will see a small shadow of our plane completely encircled in a rainbow. This optical phenomenon, called a “glory,” can develop when the plane flies directly between the sun and a cloud below. Flying over the ice sheet in the far northeast of Greenland we saw…

  • Our Best Flight Yet

    Our Best Flight Yet

    Evidence of the retreat of glaciers since the last glacial maximum (check), flying over sites of ancient Inuit, Norse and present day settlements (check), and a personal recollection of my own past in this location (check).

  • Video: Is Drought In East Africa The New Normal?

    Video: Is Drought In East Africa The New Normal?

    A video interview with climate scientist Bradfield Lyon, who explains his latest research on what’s driving rainfall patterns in parts of East Africa.

  • World Climate Policies: Substantial Progress But Enormous Challenges Remain

    World Climate Policies: Substantial Progress But Enormous Challenges Remain

    Recent analysis by Deutsche Bank Climate Change Advisory (DBCCA) in conjunction with the Columbia Climate Center, shows that the existing world climate policies have the potential to substantially reduce CO2 emissions, but are not aggressive enough to meet the suggested 450 ppm stabilization pathways.

  • Clues to Sea Level Rise Are Hidden In and Below Greenland’s Ice

    Clues to Sea Level Rise Are Hidden In and Below Greenland’s Ice

    Greenland is surrounded by a ring of high mountains that work like fingers encircling the ice to hold it in place. Ice sliding from between these “fingers” into the surrounding waters results in a major human impact – Sea Level Rise.

  • Midgard Glaciers hold the mark of Thor

    Midgard Glaciers hold the mark of Thor

    To Norse mythology Midgard is a place that is impassable, surrounded by a world of ocean. Thor, the hammer-wielding warrior god often traveled across to Midgard, and one imagines evidence of his fiery power remains in the highly charged rocks that are left behind. Magnetized rocks containing Thor’s energy and the fiery touch of his…

Colorful banner with city: "MR 2025: Mobility, Adaptation, and Wellbeing in a Changing Climate."
  • A Major Legal Victory for Climate Science

    A Major Legal Victory for Climate Science

         Though most attention last week focused on the Supreme Court ruling upholding federal reform of the health-care system, the U.S. Court of Appeals for the District of Columbia issued the most important judicial decision on climate change in five years.  That decision upholds the Environmental Protection Agency’s power to regulate greenhouse gases, and it…

  • When the World Ended in Ice

    When the World Ended in Ice

    A mile or so of glacial ice covering much of North America and plowing down from the north once terminated in the New York metropolitan area, at a front stretching roughly from exit 13 on the New Jersey Turnpike (Rahway), on across southern Staten Island, the Bensonhurst neighborhood of Brooklyn, and northeastward through Long Island. But exactly when that ice started…

  • The Art of Flying

    The Art of Flying

    Flying. It is something we are almost all familiar with, and yet I expect few of us have really sat back to appreciate the actual science of it. For the past 10 weeks we have been flying, not just a day or two a week but five or six days a week depending on the…

  • The ‘Glory’ in Clouds and Other Amazing Sights!

    The ‘Glory’ in Clouds and Other Amazing Sights!

    If you look carefully at the picture below you will see a small shadow of our plane completely encircled in a rainbow. This optical phenomenon, called a “glory,” can develop when the plane flies directly between the sun and a cloud below. Flying over the ice sheet in the far northeast of Greenland we saw…

  • Our Best Flight Yet

    Our Best Flight Yet

    Evidence of the retreat of glaciers since the last glacial maximum (check), flying over sites of ancient Inuit, Norse and present day settlements (check), and a personal recollection of my own past in this location (check).

  • Video: Is Drought In East Africa The New Normal?

    Video: Is Drought In East Africa The New Normal?

    A video interview with climate scientist Bradfield Lyon, who explains his latest research on what’s driving rainfall patterns in parts of East Africa.

  • World Climate Policies: Substantial Progress But Enormous Challenges Remain

    World Climate Policies: Substantial Progress But Enormous Challenges Remain

    Recent analysis by Deutsche Bank Climate Change Advisory (DBCCA) in conjunction with the Columbia Climate Center, shows that the existing world climate policies have the potential to substantially reduce CO2 emissions, but are not aggressive enough to meet the suggested 450 ppm stabilization pathways.

  • Clues to Sea Level Rise Are Hidden In and Below Greenland’s Ice

    Clues to Sea Level Rise Are Hidden In and Below Greenland’s Ice

    Greenland is surrounded by a ring of high mountains that work like fingers encircling the ice to hold it in place. Ice sliding from between these “fingers” into the surrounding waters results in a major human impact – Sea Level Rise.

  • Midgard Glaciers hold the mark of Thor

    Midgard Glaciers hold the mark of Thor

    To Norse mythology Midgard is a place that is impassable, surrounded by a world of ocean. Thor, the hammer-wielding warrior god often traveled across to Midgard, and one imagines evidence of his fiery power remains in the highly charged rocks that are left behind. Magnetized rocks containing Thor’s energy and the fiery touch of his…