State of the Planet

News from the Columbia Climate School

combined sewer overflow

  • New York Lets a Thousand Bioswales Bloom

    New York Lets a Thousand Bioswales Bloom

    In an effort to curb sewage overflows, New York City has turned to green infrastructure: right-of-way bioswales, green roofs and rain gardens, among other practices. These measures help decrease stormwater runoff by increasing pervious areas and introducing water-loving plants that can absorb some of the water and encourage evaporation.

  • 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?

  • Paulie, Jimmy and Vinny on NYC’s Water Future

    Paulie, Jimmy and Vinny on NYC’s Water Future

    New York City’s trio of water and sewer czars, explain the reasons behind rising rates.

Earth Month Graphic Collage: "Our Power, Our Planet - April 2025"

The first Earth Day in 1970 ignited a movement to stop polluting our planet. This Earth Month, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.

  • New York Lets a Thousand Bioswales Bloom

    New York Lets a Thousand Bioswales Bloom

    In an effort to curb sewage overflows, New York City has turned to green infrastructure: right-of-way bioswales, green roofs and rain gardens, among other practices. These measures help decrease stormwater runoff by increasing pervious areas and introducing water-loving plants that can absorb some of the water and encourage evaporation.

  • 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?

  • Paulie, Jimmy and Vinny on NYC’s Water Future

    Paulie, Jimmy and Vinny on NYC’s Water Future

    New York City’s trio of water and sewer czars, explain the reasons behind rising rates.