How do we understand the ecological role of fire? What does "catastrophic fire" mean? How have fire suppression and climate change contributed to the types of wildfires we are seeing ever more frequently? When should one let a fire burn? Fire scientist Rod Linn and journalist Kyle Dickman know catastrophic fires first hand. One makes sophisticated,…

Archaeologist Robert L. Kelly is the author of The Fifth Beginning: What Six Million Years of Human History Can Tell Us about Our Future. He looks at four world-changing inventions of humankind – technology, culture, agriculture, and the state – each of which contained the seeds of the next, and then looks at the archaeological record that our soci…

Archaeologist Robert L. Kelly is the author of The Fifth Beginning: What Six Million Years of Human History Can Tell Us about Our Future. He looks at four world-changing inventions of humankind – technology, culture, agriculture, and the state – each of which contained the seeds of the next, and then looks at the archaeological record that our soci…

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