The person that is not being honest will claim that the views set out in this letter from persons at a leading U.S. university were fringe. Find one of your hard core promoters of CAGW and see how he or she reacts to this. It is covered in the talking points typically.
Modern doomsayers have been predicting climate and environmental disaster since the 1960s. They continue to do so today. None of the apocalyptic predictions with due dates as of today have come true.