State of the Planet

News from the Columbia Climate School

Mayor Bloomberg

  • A Sustainable City Would Continue to Keep Cars Out of Times Square

    A Sustainable City Would Continue to Keep Cars Out of Times Square

    The trade-off between regulating public behavior and free speech can be difficult, but must be taken on if we are to have public space in sustainable cities. Since we need more of these public spaces rather than fewer spaces, the behavior in Times Square is a challenge of governance that must be taken on by…

  • From PlaNYC to OneNYC: New York’s Evolving Sustainability Policy

    How do we encourage the wealthy to participate in our real estate market without driving out the rest of us? How can the city tax some of the new real estate wealth to provide housing subsidies for working New Yorkers?

  • Mayor Bloomberg's Persistent Sustainability Agenda

    The past several weeks we once again saw the Mayor at his best and at his worst. At his worst, he berated a NY Observer reporter who raised the issue of term limits. At his best, he demonstrated the political courage to experiment with banning cars from parts of Times Square and Herald Square, and…

  • Earth Institute to Advise New York City on Sustainability, Mayor Announces

    New York City Mayor Michael R. Bloomberg announced an agreement with The Earth Institute at Columbia University to work with the new Office of Long-term Planning and Sustainability as scientific advisors. The Earth Institute will provide pro bono academic and scientific expertise to the Office and participate in Advisory Board discussions. The scholars of the…

Photo of the Earth from space with the text "Lamont at AGU25" on top.

AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More

  • A Sustainable City Would Continue to Keep Cars Out of Times Square

    A Sustainable City Would Continue to Keep Cars Out of Times Square

    The trade-off between regulating public behavior and free speech can be difficult, but must be taken on if we are to have public space in sustainable cities. Since we need more of these public spaces rather than fewer spaces, the behavior in Times Square is a challenge of governance that must be taken on by…

  • From PlaNYC to OneNYC: New York’s Evolving Sustainability Policy

    How do we encourage the wealthy to participate in our real estate market without driving out the rest of us? How can the city tax some of the new real estate wealth to provide housing subsidies for working New Yorkers?

  • Mayor Bloomberg's Persistent Sustainability Agenda

    The past several weeks we once again saw the Mayor at his best and at his worst. At his worst, he berated a NY Observer reporter who raised the issue of term limits. At his best, he demonstrated the political courage to experiment with banning cars from parts of Times Square and Herald Square, and…

  • Earth Institute to Advise New York City on Sustainability, Mayor Announces

    New York City Mayor Michael R. Bloomberg announced an agreement with The Earth Institute at Columbia University to work with the new Office of Long-term Planning and Sustainability as scientific advisors. The Earth Institute will provide pro bono academic and scientific expertise to the Office and participate in Advisory Board discussions. The scholars of the…