Originally Posted by
Poor Debater
So you're basing your belief on numerology rather than science? Why am I not surprised?
What paleoclimatology tells us is that an inter-glacial ends, and ice sheet formation begins, when summer insolation at latitude 65° N drops below a critical threshold level. At 280 ppmv of CO2 (typical pre-industrial inter-glacial concentration), that critical level is about 455 W/mē.
What astronomy tells us is that those levels won't be seen again for another 60,000 years. That's because Earth's orbit is becoming more circular right now, and Earth's axial tilt is becoming more upright too. In other words, we're due for a pause in the glacial/interglacial cycle just by a chance occurance in Milankovitch cycles.
I referred you (again) to Archer & Ganopolski 2005.