a wayward comet hurtled into Earth’s atmosphere 13 ka ago, where it fractured into pieces and exploded in giant fireballs. Not only did this scatter nanodiamonds across the northern hemisphere, it led to immense wildfires that scorched North America in the aftermath, killing large populations of mammals and bringing an abrupt end to early human culture. A scientist behind the theory states quite bluntly that the entire continent was on fire.

2021-03-30: Not conclusive, but interesting to ponder.

Did impacts and airbursts from multiple fragments of a disintegrating comet cause the onset of the Younger Dryas global cataclysm 13 ka ago? After 10 years of acrimonious scientific controversy around the Younger Dryas Impact Hypothesis (YDIH), an important new book by eminent geologist Dr James L. Powell answers this question in great depth and sets the record straight with a resounding YES.

Titled “Deadly Voyager: The Ancient Comet Strike That Changed Earth and Human History”, this thoroughly researched and eminently readable study systematically demolishes all the criticisms of the YDIH that have been made over the years by scientific opponents.

Of particular note is Powell’s careful dismembering of several studies which claimed that the evidence on which the YDIH is built is “irreproducible” – a damning criticism in science and one that opponents of the YDIH often gleefully repeat as though the claim is an established and unquestionable fact that “debunks” the hypothesis.

• Uncategorized