There is nothing new about this idea, THEY just buried it for their political agenda. I’m 65. In the first grade we we taught that frozen wooly mammoth carcasses found in Siberia still had green grass in their mouths. The assumption was that the cold hit them suddenly.
I saw that “flash-frozen” notion on a nature show on TV once. Narrated by Charleton Heston. Fascinating. The explanation (for how a wooly mammoth died by freezing to death within minutes of dining on fresh daisies) was a sudden shift in the complete outer crust of Earth. The theory was that over time one pole or the other will become so large and heavy with ice build-up that the outer surface of the planet shifts on the molten core. So,....the tropics might suddenly become located at a pole, or some such.......