This story originally appeared on Yale Environment 360 and is part of the Climate Desk collaboration.
Joseph Manning, a Yale University professor of ancient history, likes to recall the moment when he was shown an advance copy of a scholarly paper that pinpointed the timing of major volcanic eruptions over the last 2,500 years. As he read the paper, “I literally fell off my chair,” he said recently.
Relying on new geochemical techniques for analyzing ice core sediment to determine the dates of ancient volcanic activity down to the year or even season, the <a
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