Using tree rings to pinpoint ancient natural disasters

Evidence found in tree rings has uncovered massive mudflows that shaped the Pacific Northwest 500 years ago. University of Arizona researcher Bryan Black discusses how seismic activity that rocked Mount Rainier in the 16th century turned the landscape into what we see today. Bryan Black spoke with Tim Swindle, professor emeritus of Planetary Science at the University of Arizona.

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Using tree rings to pinpoint ancient natural disasters

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Talking Biotech with Dr. Kevin Folta Kevin Folta Talking Biotech is a weekly podcast that uncovers the stories, ideas and research of people at the frontier of biology and engineering.Each episode explores how science and technology will transform agriculture, protect the environment, and feed 10 billion people by 2050.Interviews are led by Dr. Kevin Folta, a professor of molecular biology and genomics.

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This episode is 14 minutes long.

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This episode was published on September 18, 2026.

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