State of the Planet

News from the Columbia Climate School

Gordon Jacoby in Alaska

In Alaska, Gordon Jacoby (above), Rosanne D’Arrigo, Greg Wiles, and Nicole Davi \used tree rings to date volcanic eruptions and earthquakes. The Lab was able to create a millennial-length record of climate change and volcanic eruptions there. These trees were killed by ash from Mount Churchill around 800 AD. Photo by Nicole Davi

In Alaska, Gordon Jacoby (above), Rosanne D’Arrigo, Greg Wiles, and Nicole Davi \used tree rings to date volcanic eruptions and earthquakes. The Lab was able to create a millennial-length record of climate change and volcanic eruptions there. These trees were killed by ash from Mount Churchill around 800 AD. Photo by Nicole Davi


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