State of the Planet

News from the Columbia Climate School

Tag: Alaska3

  • Creating Earthquake Heat Maps: Temperature Spikes Leave Clues in the Rock

    Creating Earthquake Heat Maps: Temperature Spikes Leave Clues in the Rock

    When a fault slips, the temperature can spike by hundreds of degrees, high enough to alter organic compounds in the rocks and leave a signature. Lamont scientists have developed methods to use those organic signatures to reconstruct past earthquakes and better understand what controls them.

  • Photo Essay: Where the Trees Meet the Tundra

    Photo Essay: Where the Trees Meet the Tundra

    Due to warming climate and increasing human exploitation, far northern forests and the tundra beyond are undergoing rapid changes. In northern Alaska, scientists from Columbia University’s Lamont-Doherty Earth Observatory and other institutions are studying the responses of trees at the very edge of their range.

  • Where Trees Meet Tundra, Decoding Signals of Climate Change

    Where Trees Meet Tundra, Decoding Signals of Climate Change

    In northern Alaska’s Brooks Range, the earth as most of us know it comes to an end. The northern tree line-a boundary that circles all of earth’s northern landmasses for more than 8,300 miles, and forms the planet’s biggest ecological transition zone–runs through here. Scientists from Columbia University’s Lamont-Doherty Earth Observatory are studying how climate…

  • Massive Landslide Detected in Glacier Bay’s Fragile Mountains

    Massive Landslide Detected in Glacier Bay’s Fragile Mountains

    A 4,000-foot-high mountainside collapsed in Glacier Bay National Park this week in a massive landslide that spread debris for miles across the glacier below. Scientists at Lamont-Doherty Earth Observatory are studying it to improve understanding of landslide risks.

  • Detecting Landslides from a Few Seismic Wiggles

    Detecting Landslides from a Few Seismic Wiggles

    Over the last six years, seismologists Göran Ekström and Colin Stark have been perfecting a technique for picking out the seismic signature of large landslides. They just discovered North America’s largest known landslide in many years – 200 million tons of sliding rock in Alaska.

  • Ancient Faults & Water Are Sparking Earthquakes Off Alaska

    Ancient Faults & Water Are Sparking Earthquakes Off Alaska

    Ancient faults that formed in the ocean floor millions of years ago are feeding earthquakes today along stretches of the Alaska Peninsula, and likely elsewhere, a new study suggests.

  • Alaska: Hotspot for Oil and Climate Change

    Alaska: Hotspot for Oil and Climate Change

    In September, Shell Oil abandoned its offshore oil drilling projects in the Alaskan Arctic. Why is Arctic drilling so controversial and what impacts will Shell’s announcement have?

  • The Arctic’s Secret Garden

    The Arctic’s Secret Garden

    Lamont-Doherty Earth Observatory marine biologists Craig Aumack and Andy Juhl spend a month each spring in Barrow studying the algae dwelling in and under the sea ice. Their goal is to learn more about the different species of algae that compose these communities and their role in the Arctic marine food web.

  • Strange Bedfellows in the Climate Change Saga: Taiga to Tundra

    Strange Bedfellows in the Climate Change Saga: Taiga to Tundra

    In the nine-hour drive on the great Dalton Highway to Toolik Field Station one starts out in the boreal forest, which is also called the “taiga,” but the forest eventually disappears. More accurately, trees disappear. Leaving Fairbanks, one drives through beautiful stands of spruce, birch, and aspen trees, but as one gets closer and closer…

Science for the Planet: In these short video explainers, discover how scientists and scholars across the Columbia Climate School are working to understand the effects of climate change and help solve the crisis.
  • Creating Earthquake Heat Maps: Temperature Spikes Leave Clues in the Rock

    Creating Earthquake Heat Maps: Temperature Spikes Leave Clues in the Rock

    When a fault slips, the temperature can spike by hundreds of degrees, high enough to alter organic compounds in the rocks and leave a signature. Lamont scientists have developed methods to use those organic signatures to reconstruct past earthquakes and better understand what controls them.

  • Photo Essay: Where the Trees Meet the Tundra

    Photo Essay: Where the Trees Meet the Tundra

    Due to warming climate and increasing human exploitation, far northern forests and the tundra beyond are undergoing rapid changes. In northern Alaska, scientists from Columbia University’s Lamont-Doherty Earth Observatory and other institutions are studying the responses of trees at the very edge of their range.

  • Where Trees Meet Tundra, Decoding Signals of Climate Change

    Where Trees Meet Tundra, Decoding Signals of Climate Change

    In northern Alaska’s Brooks Range, the earth as most of us know it comes to an end. The northern tree line-a boundary that circles all of earth’s northern landmasses for more than 8,300 miles, and forms the planet’s biggest ecological transition zone–runs through here. Scientists from Columbia University’s Lamont-Doherty Earth Observatory are studying how climate…

  • Massive Landslide Detected in Glacier Bay’s Fragile Mountains

    Massive Landslide Detected in Glacier Bay’s Fragile Mountains

    A 4,000-foot-high mountainside collapsed in Glacier Bay National Park this week in a massive landslide that spread debris for miles across the glacier below. Scientists at Lamont-Doherty Earth Observatory are studying it to improve understanding of landslide risks.

  • Detecting Landslides from a Few Seismic Wiggles

    Detecting Landslides from a Few Seismic Wiggles

    Over the last six years, seismologists Göran Ekström and Colin Stark have been perfecting a technique for picking out the seismic signature of large landslides. They just discovered North America’s largest known landslide in many years – 200 million tons of sliding rock in Alaska.

  • Ancient Faults & Water Are Sparking Earthquakes Off Alaska

    Ancient Faults & Water Are Sparking Earthquakes Off Alaska

    Ancient faults that formed in the ocean floor millions of years ago are feeding earthquakes today along stretches of the Alaska Peninsula, and likely elsewhere, a new study suggests.

  • Alaska: Hotspot for Oil and Climate Change

    Alaska: Hotspot for Oil and Climate Change

    In September, Shell Oil abandoned its offshore oil drilling projects in the Alaskan Arctic. Why is Arctic drilling so controversial and what impacts will Shell’s announcement have?

  • The Arctic’s Secret Garden

    The Arctic’s Secret Garden

    Lamont-Doherty Earth Observatory marine biologists Craig Aumack and Andy Juhl spend a month each spring in Barrow studying the algae dwelling in and under the sea ice. Their goal is to learn more about the different species of algae that compose these communities and their role in the Arctic marine food web.

  • Strange Bedfellows in the Climate Change Saga: Taiga to Tundra

    Strange Bedfellows in the Climate Change Saga: Taiga to Tundra

    In the nine-hour drive on the great Dalton Highway to Toolik Field Station one starts out in the boreal forest, which is also called the “taiga,” but the forest eventually disappears. More accurately, trees disappear. Leaving Fairbanks, one drives through beautiful stands of spruce, birch, and aspen trees, but as one gets closer and closer…