Did the flood waters from melting of the Laurentide Ice Sheet in the last major cold episode on Earth about 12,900 years ago flow northwest into the Arctic firs, or east via the Gulf of St. Lawrence to weaken ocean thermohaline circulation and have a frigid effect on global climate?

It’s a debate that has gone on for decades but new, high-resolution global ocean circulation models claim to have an answer/  The researchers report that the flood must have flowed north into the Arctic first down the Mackenzie River valley. They also say that if it had flowed east into the St. Lawrence River valley, Earth’s climate would have remained relatively unchanged.


read more

via Science 2.0 Read More…