Ice sheet melt identified as trigger of 'Big Freeze'
Wednesday, March 31, 2010 - 14:28
in Earth & Climate
The main cause of a rapid global cooling period, known as the Big Freeze or Younger Dryas -- which occurred nearly 13,000 years ago -- has been identified. A new study, has identified a mega-flood path across North America which channeled melt-water from a giant ice sheet into the oceans and triggering the Younger Dryas cold snap.