State of the Planet

News from the Columbia Climate School

Author: Kevin Krajick35


  • Watering the World’s Crops, Drop by Drop

    Watering the World’s Crops, Drop by Drop

    Dr. Daniel Hillel was recently honored with the World Food Prize for his pioneering work in sustainable agriculture.

  • A Forest Reserve Is Not an Island

    A Forest Reserve Is Not an Island

    Biologist Marina Cords has been studying monkey social behavior in western Kenya’s protected Kakamega Forest since 1979. Her work has led to insights about how primates manage conflicts, mate and carry out other social functions closely related to human behavior.

  • 2010 Korea Bomb ‘Tests’ Probably False Alarms, Says Study

    Amid Nuclear Tensions, a Seismic Reality Check

  • Forest Razing by Ancient Maya Worsened Droughts, Says Study

    Human-Influenced Climate Change May Have Contributed to Society’s Collapse

  • Seeking the Deadly Roots of the Dinosaurs’ Ascent

    Seeking the Deadly Roots of the Dinosaurs’ Ascent

    Over the past 450 million years, life on earth has undergone at least five great extinctions, when biological activity nosedived and dominant groups of creatures disappeared. The final one (so far) was 65 million years ago, when it appears that a giant meteorite brought fires, shock waves and tsunamis, then drastically altered the climate. That killed off…

  • Along an Ancient Coast, Clues to a Global Extinction

    Along an Ancient Coast, Clues to a Global Extinction

    Wave-washed sea cliffs along the coasts of western England and Wales are home to spectacular assemblages of rocks and fossils that may hold keys to understanding a sudden global extinction 201.4 million years ago that cleared the way for the rapid evolution of dinosaurs. Paleontologist Paul Olsen and geologist Dennis Kent of Columbia University’s Lamont-Doherty…

  • The Triassic and Today: Hinge Points in Earth’s History

    The Triassic and Today: Hinge Points in Earth’s History

    Paleontologist Paul Olsen has been investigating the causes of Triassic-Jurassic extinction–a turning point in earth’s history that wiped out many life forms and started the reign of dinosaurs. More than 200 million years separate us from this catastrophe (also called the End-Triassic Extinction), but it could contain some lessons for us today, says Olsen.  For…

  • Tropical Plankton Invade Arctic Waters

    Researchers See Natural Cycle; But Questions Arise on Climate Change

  • 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…

  • Watering the World’s Crops, Drop by Drop

    Watering the World’s Crops, Drop by Drop

    Dr. Daniel Hillel was recently honored with the World Food Prize for his pioneering work in sustainable agriculture.

  • A Forest Reserve Is Not an Island

    A Forest Reserve Is Not an Island

    Biologist Marina Cords has been studying monkey social behavior in western Kenya’s protected Kakamega Forest since 1979. Her work has led to insights about how primates manage conflicts, mate and carry out other social functions closely related to human behavior.

  • 2010 Korea Bomb ‘Tests’ Probably False Alarms, Says Study

    Amid Nuclear Tensions, a Seismic Reality Check

  • Forest Razing by Ancient Maya Worsened Droughts, Says Study

    Human-Influenced Climate Change May Have Contributed to Society’s Collapse

  • Seeking the Deadly Roots of the Dinosaurs’ Ascent

    Seeking the Deadly Roots of the Dinosaurs’ Ascent

    Over the past 450 million years, life on earth has undergone at least five great extinctions, when biological activity nosedived and dominant groups of creatures disappeared. The final one (so far) was 65 million years ago, when it appears that a giant meteorite brought fires, shock waves and tsunamis, then drastically altered the climate. That killed off…

  • Along an Ancient Coast, Clues to a Global Extinction

    Along an Ancient Coast, Clues to a Global Extinction

    Wave-washed sea cliffs along the coasts of western England and Wales are home to spectacular assemblages of rocks and fossils that may hold keys to understanding a sudden global extinction 201.4 million years ago that cleared the way for the rapid evolution of dinosaurs. Paleontologist Paul Olsen and geologist Dennis Kent of Columbia University’s Lamont-Doherty…

  • The Triassic and Today: Hinge Points in Earth’s History

    The Triassic and Today: Hinge Points in Earth’s History

    Paleontologist Paul Olsen has been investigating the causes of Triassic-Jurassic extinction–a turning point in earth’s history that wiped out many life forms and started the reign of dinosaurs. More than 200 million years separate us from this catastrophe (also called the End-Triassic Extinction), but it could contain some lessons for us today, says Olsen.  For…

  • Tropical Plankton Invade Arctic Waters

    Researchers See Natural Cycle; But Questions Arise on Climate Change

  • 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…