[DittoJed2]

You are assuming they are annual. That is a wrong assumption.

[Right Wing Professor]

We know they're annual in the historical past, because we can count back layers until we find ones that contain volcanic dust, which we can correlate with known volcanic eruptions. We can also date CO2 in the layers. They give an entirely consistent picture for the histrocial period; so why did we go from 1/year oscillations in the historical period to 20/year oscillations earlier?