Well, an explanation as to why CO2 levels of 6,000ppm in the past didn't cause the earth to overheat would be a start.
Or why water vapour, of which there is an unknown quantity in the atmosphere, is usually ignored in the argument for GW (estimates vary from 2% to 4%).
It is up to the warmists to show, prove, that CO2 is the bad guy. Not up to us to prove it isn't. But past geological evidence indicates it is not relevant - therefore the models must be wrong. There was a thread today on the sea levels - they are NOT rising.
It's up to the GW advocates to come up with proof. I can't possibly say what, or where, would satisfy me on the AGW - all I know is that nothing has come close yet.
