Scientists have long known the earth cooled dramatically about 13,000 years ago, and the most likely explanation has been that it was caused by a massive object slamming into earth from space or bursting in the atmosphere. But now researchers have reported new evidence for another, more likely explanation - the eruption of a volcano on what is now the European continent, upending thinking about an event that shaped future evolution.
A new chemical analysis upends conventional explanation for global cooling
- 31. 7 2020 (06:00)