State of the Planet

News from the Columbia Climate School

climate change139

  • Antarctica’s Secrets

    Antarctica’s Secrets

    Understanding the historical context and dynamics of Antarctica’s massive ice sheets is critical for modeling future changes that have the potential to impact the globe, including significant contributions to sea level rise.

  • The Last Arctic Sea Ice Refuge

    The Last Arctic Sea Ice Refuge

    If climate change proceeds apace, summer sea ice in the Arctic is projected to nearly disappear by the end of this century. But a group of researchers predicts that ice will continue to collect in one small area, perhaps providing a last-ditch stand for ringed seals, polar bears and other creatures that cannot live without…

  • The Caribbean’s Growing Disaster Hotspots

    The Caribbean’s Growing Disaster Hotspots

    The 125 million people of the Caribbean/Gulf of Mexico region are highly exposed to hurricanes, floods and landslides–and it is not only because of bad weather. Increasing numbers of the poor are crowding into confined areas that are most prone to destruction–low-lying flood plains, too-steep hillsides, and the like. Robert Chen, director of the Center for International Earth…

  • The Right Tools to Talk Climate

    At AGU, you need the right tools to understand what’s going on, and to get where you need to go. Columbia researchers have been looking for the right tools to navigate another complicated place: The gap between what climate science tells us, and how a lot of the public hears that information.

  • Deep Ocean Heat Is Melting Antarctic Ice

    Deep Ocean Heat Is Melting Antarctic Ice

    Like dirt swept under the carpet, it appears that much of the human-made heat produced over the last century has been getting soaked up by the world’s oceans, and sinking into deep waters.

  • Parched for Peace: The Fertile Crescent Might Be Barren

    Parched for Peace: The Fertile Crescent Might Be Barren

    This past October, the Levant Desalination Association and Nosstia, an organization of expat Syrian scientists, arranged a conference in the capital city of Damascus to discuss Syria’s water crisis.

  • Parched for Peace: A Miniseries on the Mideast Water Crisis

    Parched for Peace: A Miniseries on the Mideast Water Crisis

    For a vast majority of the past fifty years, oil and its abundance defined the Middle East. In coming years, however, that part of the world may well be defined by the dearth of a different natural resource: water.

  • Is Groundwater Depletion Causing Sea-level Rise?

    Is Groundwater Depletion Causing Sea-level Rise?

    A recent study from Yoshihide Wada and other researchers from Utrecht University attempted to assess the status of global groundwater depletion—that is, the amount of water that is being drawn out from underground reservoirs that is not being replaced by precipitation—and came up with some startling conclusions. Chief among them that depletion of groundwater may…

  • Risky Business 2: Municipal Bonds?

    Risky Business 2: Municipal Bonds?

    According to a recently released report, municipal bonds, which finance a large portion of the nation’s water utilities and infrastructure, may not carry ratings that reflect the growing pool of risk surrounding the nation’s water supply.

Colorful icons representing nature, sustainable living, and renewable energy with text "Earth Day 2026"

The first Earth Day in 1970 ignited a movement to stop polluting our planet. Today, our scientists and experts are tackling the most pressing challenges to achieve real-world impact. This Earth Day, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.

  • Antarctica’s Secrets

    Antarctica’s Secrets

    Understanding the historical context and dynamics of Antarctica’s massive ice sheets is critical for modeling future changes that have the potential to impact the globe, including significant contributions to sea level rise.

  • The Last Arctic Sea Ice Refuge

    The Last Arctic Sea Ice Refuge

    If climate change proceeds apace, summer sea ice in the Arctic is projected to nearly disappear by the end of this century. But a group of researchers predicts that ice will continue to collect in one small area, perhaps providing a last-ditch stand for ringed seals, polar bears and other creatures that cannot live without…

  • The Caribbean’s Growing Disaster Hotspots

    The Caribbean’s Growing Disaster Hotspots

    The 125 million people of the Caribbean/Gulf of Mexico region are highly exposed to hurricanes, floods and landslides–and it is not only because of bad weather. Increasing numbers of the poor are crowding into confined areas that are most prone to destruction–low-lying flood plains, too-steep hillsides, and the like. Robert Chen, director of the Center for International Earth…

  • The Right Tools to Talk Climate

    At AGU, you need the right tools to understand what’s going on, and to get where you need to go. Columbia researchers have been looking for the right tools to navigate another complicated place: The gap between what climate science tells us, and how a lot of the public hears that information.

  • Deep Ocean Heat Is Melting Antarctic Ice

    Deep Ocean Heat Is Melting Antarctic Ice

    Like dirt swept under the carpet, it appears that much of the human-made heat produced over the last century has been getting soaked up by the world’s oceans, and sinking into deep waters.

  • Parched for Peace: The Fertile Crescent Might Be Barren

    Parched for Peace: The Fertile Crescent Might Be Barren

    This past October, the Levant Desalination Association and Nosstia, an organization of expat Syrian scientists, arranged a conference in the capital city of Damascus to discuss Syria’s water crisis.

  • Parched for Peace: A Miniseries on the Mideast Water Crisis

    Parched for Peace: A Miniseries on the Mideast Water Crisis

    For a vast majority of the past fifty years, oil and its abundance defined the Middle East. In coming years, however, that part of the world may well be defined by the dearth of a different natural resource: water.

  • Is Groundwater Depletion Causing Sea-level Rise?

    Is Groundwater Depletion Causing Sea-level Rise?

    A recent study from Yoshihide Wada and other researchers from Utrecht University attempted to assess the status of global groundwater depletion—that is, the amount of water that is being drawn out from underground reservoirs that is not being replaced by precipitation—and came up with some startling conclusions. Chief among them that depletion of groundwater may…

  • Risky Business 2: Municipal Bonds?

    Risky Business 2: Municipal Bonds?

    According to a recently released report, municipal bonds, which finance a large portion of the nation’s water utilities and infrastructure, may not carry ratings that reflect the growing pool of risk surrounding the nation’s water supply.