State of the Planet

News from the Columbia Climate School

Global Warming21

  • Water Security: Finding Solutions for a World at Risk

    Water Security: Finding Solutions for a World at Risk

    “This is a mess, and it is a mess that we have not attended to yet,” Earth Institute Director Jeffrey Sachs said at a conference on water security held today at Columbia University. “Humanity is the driver, but we don’t have our hands on the steering wheel very much.”

  • The Law of Drowning Nations

    The Law of Drowning Nations

    Sea levels are inching up year by year, and by various projections could be two to six feet higher by 2100—enough to make some small, low-lying island nations uninhabitable, or simply to wipe them off the map. What rights will citizens have to live elsewhere; in fact, will these entities actually still be nations, with…

  • Extreme Weather Adds Up to Troubling Future

    Extreme Weather Adds Up to Troubling Future

    Extreme weather and climate-related events already have cost the United States billions of dollars. A recent symposium focused on what we know about the causes and how changing climate affects agriculture, water supplies, wildlife and our economy.

  • What Obama Can and Should Do About Climate Change

    What Obama Can and Should Do About Climate Change

    As President Obama embarks on his second term, many Americans are hoping that the extreme weather of 2012 will mark a sea change and finally goad him into making meaningful efforts to deal with climate change.

  • What Dust May Have To Do With Earth’s Rapidly Warming Poles

    What Dust May Have To Do With Earth’s Rapidly Warming Poles

    As earth’s climate warms, scientists have tried to understand why the poles are heating up two to three times faster than the rest of the planet. Airborne dust, it turns out, may play a key role.

  • Smaller Colorado River Projected for Coming Decades, Study Says

    Smaller Colorado River Projected for Coming Decades, Study Says

    Some 40 million people depend on the Colorado River Basin for water but warmer weather from rising greenhouse gas levels and a growing population may signal water shortages ahead.

  • How the Warming Arctic Affects Us All

    How the Warming Arctic Affects Us All

    The Arctic may seem remote, but the overall rate of global warming, our climate and weather, sea levels, and many ecosystems and species will be affected by the warming that is occurring there.

  • Arctic Archipelago: Ground Zero For Climate Change

    Arctic Archipelago: Ground Zero For Climate Change

    Summer temperatures on the archipelago of Svalbard, 400 miles north of Norway, are now higher than at any other period in the last 1,800 years, according to a new study in the journal Geology.

  • ‘This is a wake-up call – don’t hit the snooze button’

    ‘This is a wake-up call – don’t hit the snooze button’

    For years before Hurricane Sandy charged ashore on Monday, researchers from the Earth Institute knew what was coming. As the region struggles to recover from this “superstorm,” we asked some of them to consider the lessons we can learn as we move forward.

Composite banner with modern building at night and portrait of Dean Alexis Abramson that reads "Science for the Planet"

By studying thousands of buildings and analyzing their electricity use, Columbia Climate School Dean Alexis Abramson has been able to uncover ways to significantly cut energy consumption and emissions. Watch the Video: “Engineering a Cooler Future Through Smarter Buildings

  • Water Security: Finding Solutions for a World at Risk

    Water Security: Finding Solutions for a World at Risk

    “This is a mess, and it is a mess that we have not attended to yet,” Earth Institute Director Jeffrey Sachs said at a conference on water security held today at Columbia University. “Humanity is the driver, but we don’t have our hands on the steering wheel very much.”

  • The Law of Drowning Nations

    The Law of Drowning Nations

    Sea levels are inching up year by year, and by various projections could be two to six feet higher by 2100—enough to make some small, low-lying island nations uninhabitable, or simply to wipe them off the map. What rights will citizens have to live elsewhere; in fact, will these entities actually still be nations, with…

  • Extreme Weather Adds Up to Troubling Future

    Extreme Weather Adds Up to Troubling Future

    Extreme weather and climate-related events already have cost the United States billions of dollars. A recent symposium focused on what we know about the causes and how changing climate affects agriculture, water supplies, wildlife and our economy.

  • What Obama Can and Should Do About Climate Change

    What Obama Can and Should Do About Climate Change

    As President Obama embarks on his second term, many Americans are hoping that the extreme weather of 2012 will mark a sea change and finally goad him into making meaningful efforts to deal with climate change.

  • What Dust May Have To Do With Earth’s Rapidly Warming Poles

    What Dust May Have To Do With Earth’s Rapidly Warming Poles

    As earth’s climate warms, scientists have tried to understand why the poles are heating up two to three times faster than the rest of the planet. Airborne dust, it turns out, may play a key role.

  • Smaller Colorado River Projected for Coming Decades, Study Says

    Smaller Colorado River Projected for Coming Decades, Study Says

    Some 40 million people depend on the Colorado River Basin for water but warmer weather from rising greenhouse gas levels and a growing population may signal water shortages ahead.

  • How the Warming Arctic Affects Us All

    How the Warming Arctic Affects Us All

    The Arctic may seem remote, but the overall rate of global warming, our climate and weather, sea levels, and many ecosystems and species will be affected by the warming that is occurring there.

  • Arctic Archipelago: Ground Zero For Climate Change

    Arctic Archipelago: Ground Zero For Climate Change

    Summer temperatures on the archipelago of Svalbard, 400 miles north of Norway, are now higher than at any other period in the last 1,800 years, according to a new study in the journal Geology.

  • ‘This is a wake-up call – don’t hit the snooze button’

    ‘This is a wake-up call – don’t hit the snooze button’

    For years before Hurricane Sandy charged ashore on Monday, researchers from the Earth Institute knew what was coming. As the region struggles to recover from this “superstorm,” we asked some of them to consider the lessons we can learn as we move forward.