State of the Planet

News from the Columbia Climate School

Water28

  • IRI@AGU: Schedule of Events + Q&As

    IRI@AGU: Schedule of Events + Q&As

    Four scientists and one PhD student from the International Research Institute for Climate and Society are attending the 2013 American Geophysical Union’s Fall Meeting. Below are links to Q&As with each of the presenters and the schedule of their posters and presentations.

  • Is Sustainability Sustainable in a Post-Bloomberg NYC?

    Is Sustainability Sustainable in a Post-Bloomberg NYC?

    With the end of Mayor Michael Bloomberg’s tenure drawing near, many are speculating which of his policies will survive the next administration. New York City’s comprehensive environmental plan, PlaNYC 2030: A Greener, Greater New York, has been championed politically by Bloomberg, but is grounded in science and data, and performance management. It has demonstrated progress,…

  • When the Sahara Turned to Sand

    When the Sahara Turned to Sand

    The Sahara wasn’t always a desert. Trees and grasslands dominated the landscape from roughly 10,000 to 5,000 years ago. Then, abruptly, the climate changed. A study by Lamont-Doherty’s Peter deMenocal says it took just a few hundred years to happen.

  • Just How Effective is Green Infrastructure?

    Just How Effective is Green Infrastructure?

    Over the next 18 years, New York City’s 2010 Green Infrastructure Plan will spend $2.4 billion on green infrastructure— green roofs, tree plantings, and increased vegetation— to combat coastal pollution. But how does green infrastructure work and how effective is it really?

  • The End of Cheap Water?

    The End of Cheap Water?

    Americans are paying more for water than they did a decade ago, even as water utilities fall into debt and water infrastructure deteriorates, according to a Columbia Water Center report.

  • Resource Consumption — the Ultimate Bubble?

    Resource Consumption — the Ultimate Bubble?

    “Basically, the instinct of civilizations in the past has been to run off a cliff. This time it’s different. We have one global civilization, so we have to be very careful not to run off a cliff.”

  • Exploring New Zealand Climate Change in Groundwater

    Exploring New Zealand Climate Change in Groundwater

    Alan Seltzer, a senior at Columbia University, traveled to New Zealand this past summer to work on field experiments aimed at reconstructing temperatures in the region over the last 20,000 years. His adviser, geochemist Martin Stute, is working closely with colleagues at Lamont-Doherty to understand how the southern hemisphere came out of the last ice…

  • Sustainability Certification in Aquaculture: Put Your Money Where Your Mouth Is?

    Sustainability Certification in Aquaculture: Put Your Money Where Your Mouth Is?

    Should we certify aquaculture? A look at mounting challenges in the push for sustainable seafood.

  • Aquanaut Summer Interns Dive Deeper into Research

    Aquanaut Summer Interns Dive Deeper into Research

    This summer, the Columbia Water Center Aquanaut interns addressed a variety of water-related questions affecting the United States, with funding and guidance provided by Veolia Foundation, Veolia Water and members of Growing Blue. Nelson Dove, Christine Wen, Mary Williams, Christopher Economides and Daniel Shi were selected to expand the repertoire of data-driven tools the Columbia…

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!

  • IRI@AGU: Schedule of Events + Q&As

    IRI@AGU: Schedule of Events + Q&As

    Four scientists and one PhD student from the International Research Institute for Climate and Society are attending the 2013 American Geophysical Union’s Fall Meeting. Below are links to Q&As with each of the presenters and the schedule of their posters and presentations.

  • Is Sustainability Sustainable in a Post-Bloomberg NYC?

    Is Sustainability Sustainable in a Post-Bloomberg NYC?

    With the end of Mayor Michael Bloomberg’s tenure drawing near, many are speculating which of his policies will survive the next administration. New York City’s comprehensive environmental plan, PlaNYC 2030: A Greener, Greater New York, has been championed politically by Bloomberg, but is grounded in science and data, and performance management. It has demonstrated progress,…

  • When the Sahara Turned to Sand

    When the Sahara Turned to Sand

    The Sahara wasn’t always a desert. Trees and grasslands dominated the landscape from roughly 10,000 to 5,000 years ago. Then, abruptly, the climate changed. A study by Lamont-Doherty’s Peter deMenocal says it took just a few hundred years to happen.

  • Just How Effective is Green Infrastructure?

    Just How Effective is Green Infrastructure?

    Over the next 18 years, New York City’s 2010 Green Infrastructure Plan will spend $2.4 billion on green infrastructure— green roofs, tree plantings, and increased vegetation— to combat coastal pollution. But how does green infrastructure work and how effective is it really?

  • The End of Cheap Water?

    The End of Cheap Water?

    Americans are paying more for water than they did a decade ago, even as water utilities fall into debt and water infrastructure deteriorates, according to a Columbia Water Center report.

  • Resource Consumption — the Ultimate Bubble?

    Resource Consumption — the Ultimate Bubble?

    “Basically, the instinct of civilizations in the past has been to run off a cliff. This time it’s different. We have one global civilization, so we have to be very careful not to run off a cliff.”

  • Exploring New Zealand Climate Change in Groundwater

    Exploring New Zealand Climate Change in Groundwater

    Alan Seltzer, a senior at Columbia University, traveled to New Zealand this past summer to work on field experiments aimed at reconstructing temperatures in the region over the last 20,000 years. His adviser, geochemist Martin Stute, is working closely with colleagues at Lamont-Doherty to understand how the southern hemisphere came out of the last ice…

  • Sustainability Certification in Aquaculture: Put Your Money Where Your Mouth Is?

    Sustainability Certification in Aquaculture: Put Your Money Where Your Mouth Is?

    Should we certify aquaculture? A look at mounting challenges in the push for sustainable seafood.

  • Aquanaut Summer Interns Dive Deeper into Research

    Aquanaut Summer Interns Dive Deeper into Research

    This summer, the Columbia Water Center Aquanaut interns addressed a variety of water-related questions affecting the United States, with funding and guidance provided by Veolia Foundation, Veolia Water and members of Growing Blue. Nelson Dove, Christine Wen, Mary Williams, Christopher Economides and Daniel Shi were selected to expand the repertoire of data-driven tools the Columbia…