State of the Planet

News from the Columbia Climate School

New York City14

  • How Safe is the Hudson? Scientists Test the River, Adirondacks to Ocean

    How Safe is the Hudson? Scientists Test the River, Adirondacks to Ocean

    A team of scientists conducted an unprecedented health check of the entire Hudson River system, from its source to New York Harbor. This is what they found.

  • Symposium this Week on Climate and Adaptation

    Symposium this Week on Climate and Adaptation

    This week climate scientists from the United States and Europe will join with officials from government and international agencies at Columbia to share knowledge about climate change and strategies for adaptation in North America and the Caribbean.

  • For Women, a Search for Safety and Community in the City

    For Women, a Search for Safety and Community in the City

    For most people, home is where you feel the safest. In this post, Kaori Yoshida discusses women’s safety in cities through reflecting on topics of community building, root shock and gentrification.

  • Study Warns of Surge in Heat-Related Deaths in New York City

    Study Warns of Surge in Heat-Related Deaths in New York City

    A new study projects that as many as 3,331 people a year could be dying from the heat during New York City summers by 2080 as a result of the warming climate. That compares to 638 heat-related deaths on average between 2000 and 2006.

  • By the Numbers: Air Quality and Pollution in New York City

    By the Numbers: Air Quality and Pollution in New York City

    New York City is known for many things, but having clean air isn’t one of them. Explore some of the issues and challenges the Big Apple faces in clearing NYC’s air through interactive maps and data.

  • Going Electric Adds up to a Good Idea for NYC Buses

    Going Electric Adds up to a Good Idea for NYC Buses

    New York City Transit is considering adding electric buses to its fleet. The purchase price of electric buses is higher than for diesel buses-, but using them would reduce harmful emissions. So is this a good idea?

  • A New Park Rises From an Old Garbage Dump: Parks as Critical Elements of Urban Infrastructure

    New York’s Freshkills Park may be a tough sell for those of us who remember the huge landfill that used to be there. But anyone born in the 21st century will not associate that space with garbage, and over the next half century it will become of increasing importance to the development of Staten Island…

  • How to Rethink Urban Transit, and Pay for It, Too

    How to Rethink Urban Transit, and Pay for It, Too

    “We have conflated mobility with access, but mobility is not the same as access. The best solution to a transportation problem is to not have to travel. The city itself was invented as a solution to a transportation problem. We have cities so we don’t have to travel.”

  • This Earth Day, Commute Another Way

    This Earth Day, Commute Another Way

    This Earth Day, April 22, 2016, New York City residents and commuters are encouraged to leave their car at home and use another means of travel as part of the city’s first year of Car-Free Day. Find out what Columbia University is doing in support of #CarFreeNYC.

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

  • How Safe is the Hudson? Scientists Test the River, Adirondacks to Ocean

    How Safe is the Hudson? Scientists Test the River, Adirondacks to Ocean

    A team of scientists conducted an unprecedented health check of the entire Hudson River system, from its source to New York Harbor. This is what they found.

  • Symposium this Week on Climate and Adaptation

    Symposium this Week on Climate and Adaptation

    This week climate scientists from the United States and Europe will join with officials from government and international agencies at Columbia to share knowledge about climate change and strategies for adaptation in North America and the Caribbean.

  • For Women, a Search for Safety and Community in the City

    For Women, a Search for Safety and Community in the City

    For most people, home is where you feel the safest. In this post, Kaori Yoshida discusses women’s safety in cities through reflecting on topics of community building, root shock and gentrification.

  • Study Warns of Surge in Heat-Related Deaths in New York City

    Study Warns of Surge in Heat-Related Deaths in New York City

    A new study projects that as many as 3,331 people a year could be dying from the heat during New York City summers by 2080 as a result of the warming climate. That compares to 638 heat-related deaths on average between 2000 and 2006.

  • By the Numbers: Air Quality and Pollution in New York City

    By the Numbers: Air Quality and Pollution in New York City

    New York City is known for many things, but having clean air isn’t one of them. Explore some of the issues and challenges the Big Apple faces in clearing NYC’s air through interactive maps and data.

  • Going Electric Adds up to a Good Idea for NYC Buses

    Going Electric Adds up to a Good Idea for NYC Buses

    New York City Transit is considering adding electric buses to its fleet. The purchase price of electric buses is higher than for diesel buses-, but using them would reduce harmful emissions. So is this a good idea?

  • A New Park Rises From an Old Garbage Dump: Parks as Critical Elements of Urban Infrastructure

    New York’s Freshkills Park may be a tough sell for those of us who remember the huge landfill that used to be there. But anyone born in the 21st century will not associate that space with garbage, and over the next half century it will become of increasing importance to the development of Staten Island…

  • How to Rethink Urban Transit, and Pay for It, Too

    How to Rethink Urban Transit, and Pay for It, Too

    “We have conflated mobility with access, but mobility is not the same as access. The best solution to a transportation problem is to not have to travel. The city itself was invented as a solution to a transportation problem. We have cities so we don’t have to travel.”

  • This Earth Day, Commute Another Way

    This Earth Day, Commute Another Way

    This Earth Day, April 22, 2016, New York City residents and commuters are encouraged to leave their car at home and use another means of travel as part of the city’s first year of Car-Free Day. Find out what Columbia University is doing in support of #CarFreeNYC.