State of the Planet

News from the Columbia Climate School

Urbanization24

  • Class Trip – to Bangladesh

    Class Trip – to Bangladesh

    To help my students in a class on hazards of Bangladesh better understand the country, I am taking them there to experience Bangladesh for themselves.

  • Celebrating International Women’s Day: Triumphs and Challenges

    There is much to celebrate, this International Women’s Day. Three fabulously courageous women won last year’s Nobel Peace Prize, and just a year earlier the United Nations established UN Women, a new agency dedicated to gender equality worldwide and headed by another strong woman leader and role model, former President of Brazil Michelle Bachelet. School…

  • One Planet, Too Many People?

    One Planet, Too Many People?

    Can we manage the needs of 9 billion people for water, food and energy without depleting our resources and ruining the environment? “The solutions,” says Tim Fox, “are all within the capability of existing technology.”

  • Power Play: an Energy Map of New York City

    Power Play: an Energy Map of New York City

    A new interactive, color-coded map created by a team at Columbia’s engineering school allows viewers to pinpoint and compare estimated energy usage, building lot by building lot, throughout New York City.

  • Opening the Door to More Rooftop Farming?

    Opening the Door to More Rooftop Farming?

    The NYC Department of City Planning has proposed new zoning rules to make it easier to retrofit buildings for energy efficiency – including a provision on rooftop greenhouses.

  • The End of Traffic: Goals of an Ecopreneur

    The End of Traffic: Goals of an Ecopreneur

    Savraj Singh Danjal, an ecopreneur based in New Jersey, has some practical solutions for your home energy bill — and for traffic, congestion, your view of the night sky, and how to keep your coffee warm.

  • One Billion Gallons a Day, Naturally

    One Billion Gallons a Day, Naturally

    If not for the amazing feats of planning and engineering that provide access to clean water, New York City would never have become the essential node in the many meshworks of the world that it is today.

  • Giulio Verne and the Windmills

    Giulio Verne and the Windmills

    Like some Quixotic dream, at long last the formerly Dutch island of Manhattan reaches westward for windmills.

  • Building NYC’s Resilience to Climate Change With Green Infrastructure

    Building NYC’s Resilience to Climate Change With Green Infrastructure

    Climate change will impact New York City through more frequent heavy precipitation, sea level rise and rising temperatures. To strengthen its resilience, the city is planting trees and mini-parks, restoring wetlands and installing more permeable surfaces.

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

  • Class Trip – to Bangladesh

    Class Trip – to Bangladesh

    To help my students in a class on hazards of Bangladesh better understand the country, I am taking them there to experience Bangladesh for themselves.

  • Celebrating International Women’s Day: Triumphs and Challenges

    There is much to celebrate, this International Women’s Day. Three fabulously courageous women won last year’s Nobel Peace Prize, and just a year earlier the United Nations established UN Women, a new agency dedicated to gender equality worldwide and headed by another strong woman leader and role model, former President of Brazil Michelle Bachelet. School…

  • One Planet, Too Many People?

    One Planet, Too Many People?

    Can we manage the needs of 9 billion people for water, food and energy without depleting our resources and ruining the environment? “The solutions,” says Tim Fox, “are all within the capability of existing technology.”

  • Power Play: an Energy Map of New York City

    Power Play: an Energy Map of New York City

    A new interactive, color-coded map created by a team at Columbia’s engineering school allows viewers to pinpoint and compare estimated energy usage, building lot by building lot, throughout New York City.

  • Opening the Door to More Rooftop Farming?

    Opening the Door to More Rooftop Farming?

    The NYC Department of City Planning has proposed new zoning rules to make it easier to retrofit buildings for energy efficiency – including a provision on rooftop greenhouses.

  • The End of Traffic: Goals of an Ecopreneur

    The End of Traffic: Goals of an Ecopreneur

    Savraj Singh Danjal, an ecopreneur based in New Jersey, has some practical solutions for your home energy bill — and for traffic, congestion, your view of the night sky, and how to keep your coffee warm.

  • One Billion Gallons a Day, Naturally

    One Billion Gallons a Day, Naturally

    If not for the amazing feats of planning and engineering that provide access to clean water, New York City would never have become the essential node in the many meshworks of the world that it is today.

  • Giulio Verne and the Windmills

    Giulio Verne and the Windmills

    Like some Quixotic dream, at long last the formerly Dutch island of Manhattan reaches westward for windmills.

  • Building NYC’s Resilience to Climate Change With Green Infrastructure

    Building NYC’s Resilience to Climate Change With Green Infrastructure

    Climate change will impact New York City through more frequent heavy precipitation, sea level rise and rising temperatures. To strengthen its resilience, the city is planting trees and mini-parks, restoring wetlands and installing more permeable surfaces.