One of the paragraph's in the author's latest attempt at plausible deniability began:
If the link between C02 and temperature is not conclusive
That's interesting. So is this:
(image from Wikimedia commons)
Now, you could argue that the warming causes the CO2 increase and not the other way around, but then you'd be denying the fundamental principle of the greenhouse effect. Not that that matters for Republicans whose Friedmanist worldview is dependent on denying scientific fact.