I’m very skeptical that it didn’t happen.
I’ve seen LOTS of confirming evidence using different disciplines.
The volcanic glass sediments match the sea-floor core sample data (which is a wealth of info by itself).
Something happened about 75,000 years ago. And except for the very central tropics, worldwide temps fell by 10 degrees Celsius for almost a thousand years!
djf~:” Something happened about 75,000 years ago. And except for the very central tropics, worldwide temps fell by 10 degrees Celsius for almost a thousand years!”
If my calculations are correct , I believe that the reported “ 10 degrees Celsius” for 1,000 years would compute to a 50 º temperature change in Fahrenheit.
If that would be occurring for 1,000 years , that would represent a short ‘ ice age’ , I believe .