State of the Planet

News from the Columbia Climate School

The Sustainable City

  • An Environmental Agenda for NYC’s New Mayor

    An Environmental Agenda for NYC’s New Mayor

    Our new mayor should let our environmental actions do the talking for the next eight years. It would be a refreshing change.

  • The Necessity of Recycling

    The Necessity of Recycling

    Without recycling, there can be no circular economy. Without a circular economy, we cannot build environmentally sustainable cities. Without sustainable cities, we’d better start looking for another planet.

  • Maintaining Hope in A Horrible Time

    Maintaining Hope in A Horrible Time

    Human ingenuity and persistence give me hope and help me navigate the worst public health catastrophe in a century.

Banner with images representing environmental issues and text "You Asked: Our Scientists and Experts Answer Your Burning Questions."

You Asked invites you to share your most pressing questions about climate, science, and sustainability. Lamont-Doherty Earth Observatory and Columbia Climate School experts will respond with clear, evidence-based answers. Pose your questions and story ideas!

  • An Environmental Agenda for NYC’s New Mayor

    An Environmental Agenda for NYC’s New Mayor

    Our new mayor should let our environmental actions do the talking for the next eight years. It would be a refreshing change.

  • The Necessity of Recycling

    The Necessity of Recycling

    Without recycling, there can be no circular economy. Without a circular economy, we cannot build environmentally sustainable cities. Without sustainable cities, we’d better start looking for another planet.

  • Maintaining Hope in A Horrible Time

    Maintaining Hope in A Horrible Time

    Human ingenuity and persistence give me hope and help me navigate the worst public health catastrophe in a century.