The comet proposed as a trigger for the Younger Dryas would have required approximately one million times the energy of the object that created Arizona's Meteor Crater, which is three-quarters of a mile wide.
Sources
- Did a Comet Really Kill the Mammoths 12,900 Years Ago? (nationalgeographic.com)
- https://www.nbcnews.com/news/all/dont-blame-comet-clovis-culture-demise-scientists-say-flna1C8644296 (nbcnews.com)
- https://meteorcrater.com/attraction/az-meteor-crater/ (meteorcrater.com)
- https://liberalarts.tamu.edu/csfa/wp-content/uploads/sites/14/2021/10/MT-29-3-color.pdf (liberalarts.tamu.edu)
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