State of the Planet

News from the Columbia Climate School

climate science16

  • Surging Heat May Limit Aircraft Takeoffs Globally

    Surging Heat May Limit Aircraft Takeoffs Globally

    Rising temperatures due to global warming will make it harder for many aircraft around the world to take off in coming decades, says a new study. During the hottest parts of the day, 10 to 30 percent of fully loaded planes may have to remove some fuel, cargo or passengers, or else wait for cooler…

  • Warming Climate Could Abruptly Increase Rain in Africa’s Sahel

    Warming Climate Could Abruptly Increase Rain in Africa’s Sahel

    Climate change could turn one of Africa’s driest regions wet, according to a new study. Scientists have found evidence in computer simulations for a possible abrupt change in the Sahel, a region long characterized by aridity and political instability. In the study, just published in the journal Earth System Dynamics, the authors detected a self-amplifying…

  • Fueled by Melting Glaciers, Algae Bloom Off Greenland

    Fueled by Melting Glaciers, Algae Bloom Off Greenland

    Iron particles catching a ride on glacial meltwater washed out to sea are likely fueling a recently discovered summer algal bloom off the southern coast of Greenland, according to a new study. Microalgae, also known as phytoplankton, are plant-like marine microorganisms that form the base of the food web in many parts of the ocean.…

  • As Climate Stirs Arctic Sea Ice Faster, Pollution Tags Along

    As Climate Stirs Arctic Sea Ice Faster, Pollution Tags Along

    A warming climate is not just melting the Arctic’s sea ice; it is stirring the remaining ice faster, increasing the odds that ice-rafted pollution will foul a neighboring country’s waters, says a new study.

  • Christine McCarthy: A Cheerleader for the Physics of Ice

    Christine McCarthy: A Cheerleader for the Physics of Ice

    Christine McCarthy, a geophysicist at the Lamont-Doherty Earth Observatory, scrunches blocks of ice between hunks of rock to study how ice behaves under pressure. Her work provides an important piece of the puzzle of how glaciers move, what makes them speed up, and how they are contributing to sea level rise as the climate warms.

  • Could Climate Change Shut Down the Gulf Stream?

    Could Climate Change Shut Down the Gulf Stream?

    In the 2004 disaster movie “The Day After Tomorrow,”, global warming accelerated the melting of polar ice, disrupting circulation in the North Atlantic Ocean and triggering violent changes in the weather. Could climate change shut down the Gulf Stream?

  • Meltwater Lakes Existed Under Antarctic Ice in Ancient Times

    Meltwater Lakes Existed Under Antarctic Ice in Ancient Times

    In recent years, scientists have discovered hundreds of lakes lying hidden deep beneath the Antarctic ice sheet. Now a team of researchers has found the remains of at least one sub-ice lake that existed when the ice was far more extensive, in sediments on the Antarctic continental shelf.

  • IRI Unveils Its New Generation of Climate Forecasts

    IRI Unveils Its New Generation of Climate Forecasts

    This spring, IRI implemented a new methodology for seasonal temperature and precipitation forecasts. We asked Simon Mason, Andrew Robertson and Tony Barnston, senior climate scientists who lead the development and tailoring of IRI’s forecasts, to answer some fundamental questions about the new forecast.

  • In a Warmer World, Expect the Wet to Get Wetter, and the Dry, Drier

    In a Warmer World, Expect the Wet to Get Wetter, and the Dry, Drier

    As the world warms due to human-induced climate change, many scientists have been projecting that global rainfall patterns will shift. In the latest such study, two leading researchers map out how seasonal shifts may affect water resources across the planet.

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

  • Surging Heat May Limit Aircraft Takeoffs Globally

    Surging Heat May Limit Aircraft Takeoffs Globally

    Rising temperatures due to global warming will make it harder for many aircraft around the world to take off in coming decades, says a new study. During the hottest parts of the day, 10 to 30 percent of fully loaded planes may have to remove some fuel, cargo or passengers, or else wait for cooler…

  • Warming Climate Could Abruptly Increase Rain in Africa’s Sahel

    Warming Climate Could Abruptly Increase Rain in Africa’s Sahel

    Climate change could turn one of Africa’s driest regions wet, according to a new study. Scientists have found evidence in computer simulations for a possible abrupt change in the Sahel, a region long characterized by aridity and political instability. In the study, just published in the journal Earth System Dynamics, the authors detected a self-amplifying…

  • Fueled by Melting Glaciers, Algae Bloom Off Greenland

    Fueled by Melting Glaciers, Algae Bloom Off Greenland

    Iron particles catching a ride on glacial meltwater washed out to sea are likely fueling a recently discovered summer algal bloom off the southern coast of Greenland, according to a new study. Microalgae, also known as phytoplankton, are plant-like marine microorganisms that form the base of the food web in many parts of the ocean.…

  • As Climate Stirs Arctic Sea Ice Faster, Pollution Tags Along

    As Climate Stirs Arctic Sea Ice Faster, Pollution Tags Along

    A warming climate is not just melting the Arctic’s sea ice; it is stirring the remaining ice faster, increasing the odds that ice-rafted pollution will foul a neighboring country’s waters, says a new study.

  • Christine McCarthy: A Cheerleader for the Physics of Ice

    Christine McCarthy: A Cheerleader for the Physics of Ice

    Christine McCarthy, a geophysicist at the Lamont-Doherty Earth Observatory, scrunches blocks of ice between hunks of rock to study how ice behaves under pressure. Her work provides an important piece of the puzzle of how glaciers move, what makes them speed up, and how they are contributing to sea level rise as the climate warms.

  • Could Climate Change Shut Down the Gulf Stream?

    Could Climate Change Shut Down the Gulf Stream?

    In the 2004 disaster movie “The Day After Tomorrow,”, global warming accelerated the melting of polar ice, disrupting circulation in the North Atlantic Ocean and triggering violent changes in the weather. Could climate change shut down the Gulf Stream?

  • Meltwater Lakes Existed Under Antarctic Ice in Ancient Times

    Meltwater Lakes Existed Under Antarctic Ice in Ancient Times

    In recent years, scientists have discovered hundreds of lakes lying hidden deep beneath the Antarctic ice sheet. Now a team of researchers has found the remains of at least one sub-ice lake that existed when the ice was far more extensive, in sediments on the Antarctic continental shelf.

  • IRI Unveils Its New Generation of Climate Forecasts

    IRI Unveils Its New Generation of Climate Forecasts

    This spring, IRI implemented a new methodology for seasonal temperature and precipitation forecasts. We asked Simon Mason, Andrew Robertson and Tony Barnston, senior climate scientists who lead the development and tailoring of IRI’s forecasts, to answer some fundamental questions about the new forecast.

  • In a Warmer World, Expect the Wet to Get Wetter, and the Dry, Drier

    In a Warmer World, Expect the Wet to Get Wetter, and the Dry, Drier

    As the world warms due to human-induced climate change, many scientists have been projecting that global rainfall patterns will shift. In the latest such study, two leading researchers map out how seasonal shifts may affect water resources across the planet.