Claim: Trigger for Earth’s last big freeze identified

From the University of Massachusetts at Amherst AMHERST, Mass. – For more than 30 years, climate scientists have debated whether flood waters from melting of the enormous Laurentide Ice Sheet, which ushered in the last major cold episode on Earth about 12,900 years ago, flowed northwest into the Arctic first, or east via the Gulf…

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Younger Dryas -The Rest of the Story!

WUWT readers may recall this recent story: New evidence of Younger Dryas extraterrestrial impact The story below provides much more detail about the Younger Dryas event and the split that has developed in the scientific community over the cause. I’ve added this graph below from NCDC to give readers a sense of time and magnitude of…

Evaporation, not outflow, drained ancient Lake Agassiz during the Younger Dryas

From the University of Cincinnati: Long-Lost Lake Offers Clues to Climate Change What caused water levels to drop in an immense yet long-vanished lake? Research by a University of Cincinnati geologist suggests that conditions 12,000 years ago encouraged evaporation. Not long ago, geologically speaking, a now-vanished lake covered a huge expanse of today’s Canadian prairie. As…