Quotes About Younger Dryas

About thirty-five genera of mammals disappear from America, about half of them in a brief window of 500 years, 13,200 to 12,700 years ago, with Clovis hunters occupying the core of that time period. A sudden cooling, the Younger Dryas, descends on the Earth by 12,880 years ago, marking the terminal appearance of many of these animals. Suspected causes of the YD are still contentious. But it signals the end of Clovis and much of the megafauna.

A single high NH4 peak, traced to biomass burning across North America, begins at the [Younger Dryas] onset. It is the largest biomass-burning episode from North American sources in the entire record.

Was the Younger Dryas cold event that began so suddenly and so mysteriously 12,800 years ago brought on by the effects of a large comet hitting the earth?

Massive wildfires occurred at the onset of the Younger Dryas, representing the most anomalous episode of biomass burning in at least 120,000 years and possibly in the past ~386,000 years.

it is particularly striking that no less than thirty-five genera of mammals (with each genus consisting of several species) became extinct in North America between 12,900 and 11,600 years ago, i.e. precisely during the mysterious Younger Dryas cold