Of all the people that have written on this subject I have seen no-one that has challenged the facts about Co2 in the atmosphere. I have taken samples for over ten years and found a consistent 311 ppm. Now dont bother to tell me I dont know what I am doing a I have more years experience of Co2 analysis than most of the contributors here have lived. There is nothing difficult about this procedure. The equipment is similar to that used in nuclear submarines and for the same purpose, to see how much of the gas is in the atmosphere. If you are so convinced that Co2 is high the go buy yourself some equipment (not all that dear) and test for youself,...if you are not afraid of finding something that you don't like. So put up or shut up.