This same author wrote about and supported man made climate change in a similar format.
The problem is we don’t have a general theory of climate which would aid in explaining past climates and predicting the future given certain conditions. We do know a fair amount about occurrences that seem to impact on climate particularly regional climates. I just don’t see any one to one relationship between CO2 and temperature at the low levels we have even with mans’ output. I do see a lot of money to be made in climate fear mongering.