The Cycle Of Cosmic Catastrophes: How A Stone-a... -

: Some scientists argue that the evidence, such as the "black mats," can be explained by natural environmental changes rather than a comet. Others point out the lack of a clear, single impact crater from this specific timeframe.

The authors highlight several geological markers to support their theory: The Cycle of Cosmic Catastrophes: How a Stone-A...

: Distinctive carbon-rich soil layers found at numerous sites, which the authors believe represent the fallout from global wildfires and flooding. Scientific Reception : Some scientists argue that the evidence, such

: A massive comet or fleet of comets struck or exploded over North America around 12,900 years ago, an occurrence the authors simply call "the Event". such as the "black mats