And this is again due very heavily to Jan Veizer at the University of Ottawa […] And this is where the work he did with Shaviv came in, and they found that there was no statistical correlation between CO2 and climate. And in my research, I didn’t really see any CO2 impact at all; there was nothing changing in more recent times that didn’t correlate well with the sunspot cycle. So, that’s how I got where I am.