Average Global Temperature Not Driven by CO2

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A reminder:

Refutation of significant influence from CO₂

There is multiple evidence (most identified earlier [2] ) that CO₂ has no significant effect on climate:

1. In the late Ordovician Period, the planet plunged into and warmed up from the Andean/Saharan ice age, all at about 10 times the current CO₂level [3].
2. Over the Phanerozoic eon (last 542 million years) there is no correlation between CO₂level and A[verage]G[lobal]T[emperature] [3, 4].
3. During the last and previous glaciations AGT trend changed directions before CO₂trend [2].
4. Since AGT has been directly and accurately measured world wide (about 1895), AGT has exhibited up and down trends while CO₂trend has been only up. [2]
5. Since about 2001, the measured atmospheric CO₂trend has continued to rise while the AGT trend has been essentially flat. [21, 13]

Anyone wishing to follow up the footnotes go to this most interesting paper which explains why CO2's effect on AGT is negligible at best, while arguing that the relevant greenhouse gas is water vapour: Climate Change Drivers.