Title:
Why the Earth cooled suddenly about 13,000 years ago?
Author:
Pranjal Mehar
Published:
Tech Explorist, 1 August 2020
https://www.techexplorist.com/earth-cooled-suddenly-3000-years-ago/34205/
From the article:
* One big question was, did an extraterrestrial impact occur near the end of the last ice age, about 13,000 years ago as the ice sheets covering Canada were melting, and cause an abrupt cooling that thrust the northern hemisphere back into the ice age for an extra 1,200 years?
* A new study on the ancient sediment appears to solve the mystery of why the Earth cooled suddenly about 13,000 years ago.