From PBS’ NOVA site on the Clovis Comet:
“THE ICE AGE EXTINCTION DEBATE (UPDATE)
by Evan Hadingham, NOVA Senior Science Editor
In Megabeasts’ Sudden Death, NOVA reported on a radical new theory that an extraterrestrial impact devastated North America and other regions at the end of the Ice Age. First aired at a conference in May 2007 by a team led by geological…
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