Contact: Lee Siegel
University of Utah
Caption: This is University of Utah researcher Mitchell Power with refrigerated sediment samples in a lab at the Natural History Museum of Utah. Charcoal in such sediments was the key evidence used in a new study by Powers and colleagues suggesting that the Little Ice Age - a period of global cooling - explains why there were fewer fires after about 1500.
Credit: Lee J. Siegel, University of Utah
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