State of the Planet

News from the Columbia Climate School

The 2015 Paris Climate Summit

  • Court Ruling on Clean Power Plan a Setback, But…

    Court Ruling on Clean Power Plan a Setback, But…

    The Supreme Court’s decision Tuesday to postpone implementation of the Clean Power Plan represents a setback for efforts to combat climate change; but the damage to the U.S. ability to meet pledges it made at the Paris climate summit in December “is less than it might seem,” says Michael Gerrard.

  • 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.

  • 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.”

  • Sea Level Rise: How Much, How Fast?

    Sea Level Rise: How Much, How Fast?

    By studying modeled climate evidence from the last interglacial period, the team concluded that the warming going on today risks setting off “feedbacks” in the climate system.

  • What Is Ocean Acidification & Why Does It Matter?

    What Is Ocean Acidification & Why Does It Matter?

    Excess carbon dioxide absorbed into the oceans is starting to have profound effects on marine life, from oysters to tiny snails at the base of the food chain. Our scientists explain the changes and what they are learning about ocean acidification in the past.

  • Jeffrey Sachs Talks About the Talks in Paris

    Jeffrey Sachs Talks About the Talks in Paris

    At Le Bourget outside Paris, the site of the UN climate talks, Earth Institute Director Jeffrey Sachs talks to FRANCE 24 English TV about what’s likely to happen at the climate negotiations in Paris.

  • World Wildlife Fund, Earth Institute Form New Partnership

    World Wildlife Fund, Earth Institute Form New Partnership

    The World Wildlife Fund will collaborate with the Earth Institute’s Center for Climate Systems Research to advance adaptation to the impacts of climate change around the globe. The partners will create new ways of generating climate risk information and embedding it into the World Wildlife Fund’s conservation and development planning, policies and practice.

Banner featuring a collage of extreme heat images.

Recent record-breaking heat waves have affected communities across the world. The Extreme Heat Workshop will bring together researchers and practitioners to advance the state of knowledge, identify community needs, and develop a framework for evaluating risks with a focus on climate justice. Register by June 15

  • Court Ruling on Clean Power Plan a Setback, But…

    Court Ruling on Clean Power Plan a Setback, But…

    The Supreme Court’s decision Tuesday to postpone implementation of the Clean Power Plan represents a setback for efforts to combat climate change; but the damage to the U.S. ability to meet pledges it made at the Paris climate summit in December “is less than it might seem,” says Michael Gerrard.

  • 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.

  • 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.”

  • Sea Level Rise: How Much, How Fast?

    Sea Level Rise: How Much, How Fast?

    By studying modeled climate evidence from the last interglacial period, the team concluded that the warming going on today risks setting off “feedbacks” in the climate system.

  • What Is Ocean Acidification & Why Does It Matter?

    What Is Ocean Acidification & Why Does It Matter?

    Excess carbon dioxide absorbed into the oceans is starting to have profound effects on marine life, from oysters to tiny snails at the base of the food chain. Our scientists explain the changes and what they are learning about ocean acidification in the past.

  • Jeffrey Sachs Talks About the Talks in Paris

    Jeffrey Sachs Talks About the Talks in Paris

    At Le Bourget outside Paris, the site of the UN climate talks, Earth Institute Director Jeffrey Sachs talks to FRANCE 24 English TV about what’s likely to happen at the climate negotiations in Paris.

  • World Wildlife Fund, Earth Institute Form New Partnership

    World Wildlife Fund, Earth Institute Form New Partnership

    The World Wildlife Fund will collaborate with the Earth Institute’s Center for Climate Systems Research to advance adaptation to the impacts of climate change around the globe. The partners will create new ways of generating climate risk information and embedding it into the World Wildlife Fund’s conservation and development planning, policies and practice.