"
That's OK, William, your response is uncivil. (Bad, remember).  BTW, excess CO2 may possibly be symptomatic rather than causative, and let's be honest: the science for global warming is a bit weaker than it should be.  Yes, this is your pet area, I know that, but climatologists don't agree on the evidence and computer programs are only as good as the data you feed them. If you're going to disagree, try to be civil about it.   "