State of the Planet

News from the Columbia Climate School

climate change142

  • Climate and the Border: Why Rising Temperatures Will Add Immigration Challenges

    Climate and the Border: Why Rising Temperatures Will Add Immigration Challenges

    When experts warn of the consequences of global climate change, they usually cite impacts on natural systems. They tell us that ice caps will melt, sea levels will rise, extreme weather will become more common, droughts will increase in frequency, oceans will become more acidic and so on. In recent years, we have also come…

  • Beyond Carbon: How Fixing the Ozone Layer Contributes to Climate Change

    Beyond Carbon: How Fixing the Ozone Layer Contributes to Climate Change

    The greenhouse effect is not all about carbon dioxide. Several other substances, such as water vapor and methane, also play a key part in trapping radiation. Recently, a family of relatively obscure chemicals called hydrofluorocarbons, or HFCs, has entered the spotlight due to its role in global warming. HFCs are highly potent greenhouse warmers –…

  • Climate Change and the PR Problem

    Climate Change and the PR Problem

    On Friday, July 9, Dr. Rajendra Pachauri, chair of the Intergovernmental Panel on Climate Change (IPCC), sent a letter to the individuals who will contribute to the group’s Fifth Assessment Report. Part of the memo instructed researchers how to interact with the media, largely in response to growing criticism of the IPCC’s process and reporting.…

  • Amazonians Have Shot at Reducing Greenhouse Gases, Says Study

    Amazonians Have Shot at Reducing Greenhouse Gases, Says Study

    The huge Brazilian Amazon state of Mato Grosso will cut its emissions of greenhouse gases by more than half if it sticks with current plans to reduce deforestation substantially by 2020, says a new study. The research, published this week in the Proceedings of the National Academy of Sciences, uses 105 years of historical data…

  • Sustaining Discovery Once Fieldwork Is Complete

    Sustaining Discovery Once Fieldwork Is Complete

    Watch a short video about the research of Lamont-Doherty geochemists and learn how you can support it. Researchers from the Earth Institute’s Lamont-Doherty Earth Observatory study the planet’s dynamic earth processes by venturing to the source, whether it be the submerged mountains of the Antarctic, the volcanoes of Southern Italy, or the stalagmite-rich caves of…

  • Converging Weather Patterns Caused Last Winter’s Huge Snows

    A Warming World Can Still See Severe Storms

  • The Policy Buffet (Part 3): As Kerry-Lieberman Fades, a Fresh Start for Cap-and-Trade?

    The Policy Buffet (Part 3): As Kerry-Lieberman Fades, a Fresh Start for Cap-and-Trade?

    This is the third post in a series that covers the Senates current energy and climate proposals. The introductory post can be found here. The American Power Act (APA), co-sponsored by Sens. John Kerry (D-Mass) and Joe Lieberman (I-Conn), has been seen by many as a paradigm for comprehensive energy and climate legislation. The bill…

  • The Policy Buffet (Part 2): Understanding the American Power Act

    This is the second post in a series that covers the Senate’s current energy and climate proposals. The introductory post can be found here. Among the various climate and energy proposals floating through the Senate, the American Power Act (APA) has received the lion’s share of attention. The bill, co-sponsored by Sens. John Kerry (D-Mass) and…

  • Grounding Climate Negotiations in Solution-Oriented Research

    Grounding Climate Negotiations in Solution-Oriented Research

    With the generous support of the Planet Heritage Foundation and the Skoll Global Threats Fund, the Earth Institute is initiating the Global Network for Climate Solutions and evaluating its ability to influence future international climate negotiations by grounding them in shared research that is focused on concrete solutions and action. The effort aims to facilitate…

Overhead view of Columbia campus with text Columbia Climate School Class Day 2026: Congratulations Graduates

Congratulations to our Columbia Climate School Class of 2026 and all of our 2026 Columbia University graduates! Learn more about our May 15 Climate School Class Day celebration. 💙 #Columbia2026 #ColumbiaClimate2026

  • Climate and the Border: Why Rising Temperatures Will Add Immigration Challenges

    Climate and the Border: Why Rising Temperatures Will Add Immigration Challenges

    When experts warn of the consequences of global climate change, they usually cite impacts on natural systems. They tell us that ice caps will melt, sea levels will rise, extreme weather will become more common, droughts will increase in frequency, oceans will become more acidic and so on. In recent years, we have also come…

  • Beyond Carbon: How Fixing the Ozone Layer Contributes to Climate Change

    Beyond Carbon: How Fixing the Ozone Layer Contributes to Climate Change

    The greenhouse effect is not all about carbon dioxide. Several other substances, such as water vapor and methane, also play a key part in trapping radiation. Recently, a family of relatively obscure chemicals called hydrofluorocarbons, or HFCs, has entered the spotlight due to its role in global warming. HFCs are highly potent greenhouse warmers –…

  • Climate Change and the PR Problem

    Climate Change and the PR Problem

    On Friday, July 9, Dr. Rajendra Pachauri, chair of the Intergovernmental Panel on Climate Change (IPCC), sent a letter to the individuals who will contribute to the group’s Fifth Assessment Report. Part of the memo instructed researchers how to interact with the media, largely in response to growing criticism of the IPCC’s process and reporting.…

  • Amazonians Have Shot at Reducing Greenhouse Gases, Says Study

    Amazonians Have Shot at Reducing Greenhouse Gases, Says Study

    The huge Brazilian Amazon state of Mato Grosso will cut its emissions of greenhouse gases by more than half if it sticks with current plans to reduce deforestation substantially by 2020, says a new study. The research, published this week in the Proceedings of the National Academy of Sciences, uses 105 years of historical data…

  • Sustaining Discovery Once Fieldwork Is Complete

    Sustaining Discovery Once Fieldwork Is Complete

    Watch a short video about the research of Lamont-Doherty geochemists and learn how you can support it. Researchers from the Earth Institute’s Lamont-Doherty Earth Observatory study the planet’s dynamic earth processes by venturing to the source, whether it be the submerged mountains of the Antarctic, the volcanoes of Southern Italy, or the stalagmite-rich caves of…

  • Converging Weather Patterns Caused Last Winter’s Huge Snows

    A Warming World Can Still See Severe Storms

  • The Policy Buffet (Part 3): As Kerry-Lieberman Fades, a Fresh Start for Cap-and-Trade?

    The Policy Buffet (Part 3): As Kerry-Lieberman Fades, a Fresh Start for Cap-and-Trade?

    This is the third post in a series that covers the Senates current energy and climate proposals. The introductory post can be found here. The American Power Act (APA), co-sponsored by Sens. John Kerry (D-Mass) and Joe Lieberman (I-Conn), has been seen by many as a paradigm for comprehensive energy and climate legislation. The bill…

  • The Policy Buffet (Part 2): Understanding the American Power Act

    This is the second post in a series that covers the Senate’s current energy and climate proposals. The introductory post can be found here. Among the various climate and energy proposals floating through the Senate, the American Power Act (APA) has received the lion’s share of attention. The bill, co-sponsored by Sens. John Kerry (D-Mass) and…

  • Grounding Climate Negotiations in Solution-Oriented Research

    Grounding Climate Negotiations in Solution-Oriented Research

    With the generous support of the Planet Heritage Foundation and the Skoll Global Threats Fund, the Earth Institute is initiating the Global Network for Climate Solutions and evaluating its ability to influence future international climate negotiations by grounding them in shared research that is focused on concrete solutions and action. The effort aims to facilitate…