PBS Eons has a new episode about the end of the most recent ice age. It's called the Younger Dryas period. And, it was a time when the global climate cooled after a period of warming. While we understand what happened, the cause of it has been a mystery. From ice lakes, to volcanoes, to even a meteorite, this video discusses some of the theories.
For decades, scientists have been studying the cause of the Younger Dryas, and trying to figure out if something like it could happen again. And it turns out that what caused this event is the subject of a heated debate.
