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Sunday, November 22, 2009 |
Sunday, November 22, 2009 |
Photo: Ancient Global Dimming Linked to Volcanic EruptionA year-long global cooling followed—but it was nothing compared to a massive cooling event in A.D. 536 that withered crops, sparked wars, and helped spread pestilence. Now scientists have uncovered the first physical evidence that the ancient chill was due to a supervolcano eruption. Photograph by Bullit Marquez/AP
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