State of the Planet

News from the Columbia Climate School

20153

  • Listen in: Sachs & Cohen on the Paris Agreement

    Listen in: Sachs & Cohen on the Paris Agreement

    Earth Institute Director Jeffrey Sachs sat down with Brian Lehrer at WNYC on Tuesday to talk about the Paris climate agreement and what happens now.

  • Understanding the Paris Climate Accord and Its Implications

    Understanding the Paris Climate Accord and Its Implications

    On Saturday, Dec. 12, 2015, 195 countries reached a history-making agreement to reduce their greenhouse gas emissions in order to avert the direst effects of climate change. Here are some of the best and most reliable resources to help you understand the Paris accord and its implications.

  • Testing the Speed of Lava: What It Says about Escape Times & Mars

    Testing the Speed of Lava: What It Says about Escape Times & Mars

    Elise Rumpf’s lava flow simulations are yielding new details about the velocity of lava over different surfaces. They may also hold clues about the surfaces of other planets.

  • Garbage: The Back End of the Renewable Economy

    Many cities around the world are implementing innovative measures to deal with waste, and are increasingly incorporating waste management into sustainability plans. Some cities are setting positive examples through aggressive recycling and zero waste programs.

  • Catch Up on the Latest in Earth Science with AGU Sessions Live Online

    Catch Up on the Latest in Earth Science with AGU Sessions Live Online

    The American Geophysical Union’s Fall Meeting opens in San Francisco this week. Catch up on your interests through AGU’s On-Demand live stream.

  • Faculty Profile: Vijay Modi

    Faculty Profile: Vijay Modi

    Vijay Modi is a professor of mechanical engineering at Columbia University and an Earth Institute faculty member. He also lead the UN Millennium Project effort on the role of energy and energy services in reaching the Millennium Development Goals (MDG’s). Currently, he is focused on making consumer-scaled versions of technology that is normally supersized available to developing countries.…

  • What is the U.S. Commitment in Paris?

    What is the U.S. Commitment in Paris?

    The United States has joined 185 countries in promising to curb carbon dioxide and other greenhouse gas emissions, develop other ways to mitigate the impacts and to make communities more resilient to climate change. So what exactly is the United States proposing to do?

  • Optimism, But Also a Hard Bottom Line for Island States

    Optimism, But Also a Hard Bottom Line for Island States

    “Reaching an agreement would firstly mean an increase in awareness for the particular situation faced by small island developing states. States such as Kiribati are on the front line of climate change since they are already experiencing its effects, and an agreement would enhance recognition of [their] vulnerability.”

  • How Sustainable is Vertical Farming? Students Try to Answer the Question

    How Sustainable is Vertical Farming? Students Try to Answer the Question

    Vertical farming is touted as a solution to the drawbacks of traditional agriculture, but how sustainable is it really? A team of students attempts to design a certification system to assess the sustainability of vertical farms.

Banner: Climate Week NYC 2025, September 21-28, 2025
  • Listen in: Sachs & Cohen on the Paris Agreement

    Listen in: Sachs & Cohen on the Paris Agreement

    Earth Institute Director Jeffrey Sachs sat down with Brian Lehrer at WNYC on Tuesday to talk about the Paris climate agreement and what happens now.

  • Understanding the Paris Climate Accord and Its Implications

    Understanding the Paris Climate Accord and Its Implications

    On Saturday, Dec. 12, 2015, 195 countries reached a history-making agreement to reduce their greenhouse gas emissions in order to avert the direst effects of climate change. Here are some of the best and most reliable resources to help you understand the Paris accord and its implications.

  • Testing the Speed of Lava: What It Says about Escape Times & Mars

    Testing the Speed of Lava: What It Says about Escape Times & Mars

    Elise Rumpf’s lava flow simulations are yielding new details about the velocity of lava over different surfaces. They may also hold clues about the surfaces of other planets.

  • Garbage: The Back End of the Renewable Economy

    Many cities around the world are implementing innovative measures to deal with waste, and are increasingly incorporating waste management into sustainability plans. Some cities are setting positive examples through aggressive recycling and zero waste programs.

  • Catch Up on the Latest in Earth Science with AGU Sessions Live Online

    Catch Up on the Latest in Earth Science with AGU Sessions Live Online

    The American Geophysical Union’s Fall Meeting opens in San Francisco this week. Catch up on your interests through AGU’s On-Demand live stream.

  • Faculty Profile: Vijay Modi

    Faculty Profile: Vijay Modi

    Vijay Modi is a professor of mechanical engineering at Columbia University and an Earth Institute faculty member. He also lead the UN Millennium Project effort on the role of energy and energy services in reaching the Millennium Development Goals (MDG’s). Currently, he is focused on making consumer-scaled versions of technology that is normally supersized available to developing countries.…

  • What is the U.S. Commitment in Paris?

    What is the U.S. Commitment in Paris?

    The United States has joined 185 countries in promising to curb carbon dioxide and other greenhouse gas emissions, develop other ways to mitigate the impacts and to make communities more resilient to climate change. So what exactly is the United States proposing to do?

  • Optimism, But Also a Hard Bottom Line for Island States

    Optimism, But Also a Hard Bottom Line for Island States

    “Reaching an agreement would firstly mean an increase in awareness for the particular situation faced by small island developing states. States such as Kiribati are on the front line of climate change since they are already experiencing its effects, and an agreement would enhance recognition of [their] vulnerability.”

  • How Sustainable is Vertical Farming? Students Try to Answer the Question

    How Sustainable is Vertical Farming? Students Try to Answer the Question

    Vertical farming is touted as a solution to the drawbacks of traditional agriculture, but how sustainable is it really? A team of students attempts to design a certification system to assess the sustainability of vertical farms.