The mother may well make an appeal to ignorance but only up until her husband provides his testimony. That is not analogous to our situation. Deniers have had decades now to present other viable cases. They have failed to do so. The evidence for AGW, in the meanwhile, has grown mountainous.
You have not supported your claim that AGW proponents were making a appeal to ignorance.
Do you believe you have evidence superior in quantity and quality to that found in the five IPCC assessment reportsm, supporting some alternate hypothesis?
You have not supported your claim that AGW proponents were making a appeal to ignorance.
Do you believe you have evidence superior in quantity and quality to that found in the five IPCC assessment reportsm, supporting some alternate hypothesis?