State of the Planet

News from the Columbia Climate School

sea level rise10

  • New York, New Orleans, Charlottetown and Everywhere Else

    New York, New Orleans, Charlottetown and Everywhere Else

    The disaster in New Orleans was almost uniquely awful in modern American history. But even if Katrina isn’t likely to happen everywhere, something can happen almost anywhere—including, we now know, New York. And further to the north and east.

  • A Dire Warning on Rapid Climate Change

    A Dire Warning on Rapid Climate Change

    Sea level rise from melting ice sheets in Antarctica and Greenland threatens catastrophe for coastal cities within decades unless strong measures are taken to reduce CO2 emissions from the use of fossil fuels, argues climate scientist James Hansen.

  • Was Hurricane Sandy the 100-Year Event?

    Was Hurricane Sandy the 100-Year Event?

    Recent research suggests that Sandy may have been much more likely than previously believed.

  • Report Forecasts Worsening Climate Hazards for Region

    Report Forecasts Worsening Climate Hazards for Region

    A new report gives a worrisome picture of climate-related problems the New York region will likely face this century. Temperatures are projected to rise, extreme precipitation and heat waves will be more frequent, and sea level could rise as much as 6 feet.

  • Rebuilding After Hurricane Sandy

    Rebuilding After Hurricane Sandy

    In June 2013, the Rebuild by Design competition was launched to find innovative solutions to the vulnerabilities of the region that Sandy exposed. The six winning projects were chosen for their excellence in design and resilience, and engagement with local communities. How will they protect their communities?

  • Study: NASA Sites Vulnerable to Climate Change

    Study: NASA Sites Vulnerable to Climate Change

    NASA has been at the forefront of climate science, launching satellites that take the pulse of Earth’s land, oceans and atmospheric systems. But the agency is increasingly vulnerable itself to the effects of a changing climate.

  • What Geology Has to Say About Global Warming

    What Geology Has to Say About Global Warming

    The most important lessons drawn from geology are that the earth’s climate can change radically, and rapidly. We can’t say precisely at what CO2 level we’re in danger of melting Antarctica, but that threshold could be reached in 150-300 years, if CO2 levels keep rising at the current rate.

  • How High Will Sea Levels Rise?

    How High Will Sea Levels Rise?

    Scientists from Lamont-Doherty Earth Observatory are trying to determine how high sea levels may rise in the future by studying the shorelines of the past. Led by a team of researchers including Lamont climate scientist and marine geologist Maureen Raymo, the goal of Pliomax is to increase the accuracy of global sea level estimates for…

  • Clock Is Ticking in West Antarctic

    Clock Is Ticking in West Antarctic

    “The high-resolution records that we’re getting and the high-resolution models we’re able to make now are sort of moving the questions a little bit closer into human, understandable time frames.”

Collage of Turkiye beach scene and Columbia University Campus with text: UN Climate Change Conference COP31, Antalya, Turkiye, Nov 9-20, 2026

COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More

  • New York, New Orleans, Charlottetown and Everywhere Else

    New York, New Orleans, Charlottetown and Everywhere Else

    The disaster in New Orleans was almost uniquely awful in modern American history. But even if Katrina isn’t likely to happen everywhere, something can happen almost anywhere—including, we now know, New York. And further to the north and east.

  • A Dire Warning on Rapid Climate Change

    A Dire Warning on Rapid Climate Change

    Sea level rise from melting ice sheets in Antarctica and Greenland threatens catastrophe for coastal cities within decades unless strong measures are taken to reduce CO2 emissions from the use of fossil fuels, argues climate scientist James Hansen.

  • Was Hurricane Sandy the 100-Year Event?

    Was Hurricane Sandy the 100-Year Event?

    Recent research suggests that Sandy may have been much more likely than previously believed.

  • Report Forecasts Worsening Climate Hazards for Region

    Report Forecasts Worsening Climate Hazards for Region

    A new report gives a worrisome picture of climate-related problems the New York region will likely face this century. Temperatures are projected to rise, extreme precipitation and heat waves will be more frequent, and sea level could rise as much as 6 feet.

  • Rebuilding After Hurricane Sandy

    Rebuilding After Hurricane Sandy

    In June 2013, the Rebuild by Design competition was launched to find innovative solutions to the vulnerabilities of the region that Sandy exposed. The six winning projects were chosen for their excellence in design and resilience, and engagement with local communities. How will they protect their communities?

  • Study: NASA Sites Vulnerable to Climate Change

    Study: NASA Sites Vulnerable to Climate Change

    NASA has been at the forefront of climate science, launching satellites that take the pulse of Earth’s land, oceans and atmospheric systems. But the agency is increasingly vulnerable itself to the effects of a changing climate.

  • What Geology Has to Say About Global Warming

    What Geology Has to Say About Global Warming

    The most important lessons drawn from geology are that the earth’s climate can change radically, and rapidly. We can’t say precisely at what CO2 level we’re in danger of melting Antarctica, but that threshold could be reached in 150-300 years, if CO2 levels keep rising at the current rate.

  • How High Will Sea Levels Rise?

    How High Will Sea Levels Rise?

    Scientists from Lamont-Doherty Earth Observatory are trying to determine how high sea levels may rise in the future by studying the shorelines of the past. Led by a team of researchers including Lamont climate scientist and marine geologist Maureen Raymo, the goal of Pliomax is to increase the accuracy of global sea level estimates for…

  • Clock Is Ticking in West Antarctic

    Clock Is Ticking in West Antarctic

    “The high-resolution records that we’re getting and the high-resolution models we’re able to make now are sort of moving the questions a little bit closer into human, understandable time frames.”