“Professor Christy doesn’t know what he is talking about...there is NO, NONE, ZERO, association with CO2 and “climate change” and human activity is not involved at all...there is NO proof that CO2 has anything to do with global climate cycles.”
those are two very different ststements. The second is sort-of true, ie that there is no ‘proof’ that CO2 changes in the range that the Earth is currently witnessing is affecting climate. There is some evidence of correlation but it’s likely not statistically significant once you take all of the ‘climate science’ fudge factors out of the studies. For an excellent source on that issue see climateaudit.org.
However it is not true to say “there is no association with CO2 and climate change and human activity is not involved at all” because that has not been proven, just as the claim that climate change is caused by human activity is also not proven.
Yes I can say there is no association with CO2 and climate change; the geologic record is full of data showing large swings in atmospheric CO2 and zero correlation with global temps...the earth has been historically warmer with low CO2 amounts and colder with highly elevated CO2.
The fact is, there is no direct correlation between CO2 and climate. Global climate change, (a rare occurrence on a global scale) is caused by a number of complex events and the most important atmospheric greenhouse component is water.
The enviro scam artists chose the wrong molecule.