State of the Planet

News from the Columbia Climate School

El Niño4

  • Translating Nature’s Historians: The Tree Ring Lab Turns 40

    Translating Nature’s Historians: The Tree Ring Lab Turns 40

    In its first 40 years, the Lamont Tree Ring Lab tracked changing climates around the world, building an international reputation as a global leader in research, training and technology.

  • Tree Rings on Hawai’i Could Hold New Knowledge About El Niño

    Tree Rings on Hawai’i Could Hold New Knowledge About El Niño

    Annual tree rings are a rare find in the tropical islands of the eastern Pacific. The new discovery of trees with annual rings on a Hawaiian volcano could provide new climate data from a part of the world where much of the variability of the El Niño-Southern Oscillation originates.

  • The Extreme Pacific Climate Now

    The Extreme Pacific Climate Now

    The climate over the tropical Pacific is in an extreme state at the moment. That explains some of the extreme anomalies affecting the United States right now. It also gives us a window through which we can glimpse how even more dramatic and long-term climates of the distant past might have worked.

  • Behind the Expected Quiet 2015 Hurricane Season

    Behind the Expected Quiet 2015 Hurricane Season

    On May 27, 2015, NOAA officially announced a likely below-normal Atlantic Hurricane season is coming up. The range for the possible numbers of major hurricanes is 0-2. What are the reasons behind it? How precise are these numbers?

  • Tapping into Earth’s Secret History

    Tapping into Earth’s Secret History

    In a study published last week, Lamont post-doctoral scholar Heather Ford and coauthors used 4 million-year-old fossils from the Pliocene to reconstruct the physical features of the Pacific Ocean that would have shaped the environment during a critical juncture in Earth history.

  • Forecast Sees a Stronger El Niño

    Forecast Sees a Stronger El Niño

    El Niño is back, and it looks like it will be getting stronger. While it’s difficult to predict the impact precisely, El Niño can alter patterns of drought and rainfall around the world.

  • Frequency of Tornadoes, Hail Linked to El Niño, La Niña

    Study May Aid Seasonal Forecasting

  • 2014 Was Warmest Year in Modern Record, Say Two U.S. Reports

    Data in Accord With Other Nations’ Studies

  • Has Global Warming Stalled? How Long Will It Last?

    Has Global Warming Stalled? How Long Will It Last?

    Climate Scientist Lisa Goddard talks about what may be behind the recent slowdown in global warming, and some of the nuances of predicting just how the climate will change.

Blue banner with kids and Earth photos. Text: "Lamont-Doherty Earth Observatory Open House, Saturday, October 17, 2026, 10am-4pm.

On Saturday, October 17, 2026 from 10am to 4pm, Lamont-Doherty Earth Observatory Open House—our biggest, best science fun and discovery event of the year—will take place on our beautiful campus in Palisades, NY. Mark your calendar and join us for this free, family-friendly celebration of science! RSVP Today!

  • Translating Nature’s Historians: The Tree Ring Lab Turns 40

    Translating Nature’s Historians: The Tree Ring Lab Turns 40

    In its first 40 years, the Lamont Tree Ring Lab tracked changing climates around the world, building an international reputation as a global leader in research, training and technology.

  • Tree Rings on Hawai’i Could Hold New Knowledge About El Niño

    Tree Rings on Hawai’i Could Hold New Knowledge About El Niño

    Annual tree rings are a rare find in the tropical islands of the eastern Pacific. The new discovery of trees with annual rings on a Hawaiian volcano could provide new climate data from a part of the world where much of the variability of the El Niño-Southern Oscillation originates.

  • The Extreme Pacific Climate Now

    The Extreme Pacific Climate Now

    The climate over the tropical Pacific is in an extreme state at the moment. That explains some of the extreme anomalies affecting the United States right now. It also gives us a window through which we can glimpse how even more dramatic and long-term climates of the distant past might have worked.

  • Behind the Expected Quiet 2015 Hurricane Season

    Behind the Expected Quiet 2015 Hurricane Season

    On May 27, 2015, NOAA officially announced a likely below-normal Atlantic Hurricane season is coming up. The range for the possible numbers of major hurricanes is 0-2. What are the reasons behind it? How precise are these numbers?

  • Tapping into Earth’s Secret History

    Tapping into Earth’s Secret History

    In a study published last week, Lamont post-doctoral scholar Heather Ford and coauthors used 4 million-year-old fossils from the Pliocene to reconstruct the physical features of the Pacific Ocean that would have shaped the environment during a critical juncture in Earth history.

  • Forecast Sees a Stronger El Niño

    Forecast Sees a Stronger El Niño

    El Niño is back, and it looks like it will be getting stronger. While it’s difficult to predict the impact precisely, El Niño can alter patterns of drought and rainfall around the world.

  • Frequency of Tornadoes, Hail Linked to El Niño, La Niña

    Study May Aid Seasonal Forecasting

  • 2014 Was Warmest Year in Modern Record, Say Two U.S. Reports

    Data in Accord With Other Nations’ Studies

  • Has Global Warming Stalled? How Long Will It Last?

    Has Global Warming Stalled? How Long Will It Last?

    Climate Scientist Lisa Goddard talks about what may be behind the recent slowdown in global warming, and some of the nuances of predicting just how the climate will change.