That’s a different strike. He’s talking about the Ice Age Comet Hypothesis for which there is more than ample evidence. In 10,800 BC comet fragments (believed to be from the Taurid Comet Eneke) struck the earth, principally in North America - this period last most of 100 years with repeated air-bursters and a few surface hits. All the megafauna and Clovis peoples were wiped out in the resulting ice shard bombardments and continent-wide firestorms.
The ice had begun to melt after the Keg Mountain period which caused worldwide flooding several thousand years prior. The Comet strike ushered in the Younger Dryas Period which was even colder than the Ice Age and lasted another 1000 years when another part of the comet cloud struck earth and ended the cold and began the present warming period we are in geologically. Then flooding occurred once more raising sea levels by some 400 feet wiping out any coastal towns, villages then existing - the worst happened in SE Asia with millions of square miles lost to the sea.
Thank you. Great summation.
“The Comet strike ushered in the Younger Dryas Period which was even colder than the Ice Age and lasted another 1000 years when another part of the comet cloud struck earth and ended the cold and began the present warming period we are in geologically.”
Pardon my iggernunce, but why does one strike make it cold and the next make it warm?