Evidence A Comet May Have Wiped Out Clovis People

From the Daily Mail:

A cosmic impact 12,900 years ago could have led to the demise of the ‘Clovis’ people of North America, researchers claim.

A layer of platinum from an ice core taken in Greenland has been dated back to the time of a known abrupt climate transition, known as the 'Big Freeze'.

The freeze has been previously been linked to the demise of the Clovis people, the prehistoric hunter gatherers who were the first to occupy North America.

According to researchers at Harvard University, this provides evidence that a comet tipped the world into its colder phase, making dozens of species extinct.

 Other scientists dispute the conclusion that the Clovis people died out. However, I would point out that this may be for political reasons, since to admit that the first Americans were wiped would upset established dogma concerning the origins of American Indians.