Quote from Trader666:
You didn't even know that the 440 and 390 ppmv figures were averages, so stop pretending you know what you're talking about.
Read the papers at the links I gave you littledaviedumbass. You obviously haven't or you wouldn't be embarrassing yourself. If you don't understand them, have an adult explain them to you.
If you need someone to spoon-feed you, have your mommy do it.
Yes, they are hard questions aren't they, and I understand why you don't want to answer them. Validity in samples isn't gained from having bazillions of samples, if the samples aren't accurate. Nor is validity gained from being "averages" of a lot of crappy samples.
In fact, the samples that you want included, that you feel are correct, and you feel are valid were taken in London, among other urban areas, during the industrial revolution and almost all were taken six feet or less off the ground. In fact the experimenters would compare samples taken from six feet off the ground to samples taken at one foot off the ground.
Which you have also included. Samples taken one foot off the ground.
Now I disagree. I feel that sample quality needs to be assessed individually -- but what experimental method was used, how accurate they are, and how vulnerable the samples were to contamination. Having said that, Callendar overreached in his data selection and reached a conclusion that we now know to be absolutely correct, but he did overreach.
Another thing you've stood strongly for, which I disagree with, is that samples using different methodologies should be given the same weight. You have not differentiated between samples taken before the late 1800's, with the more accurate samples taken later using an improved method. There were no less than four different methods (and probably more) in use and you just figure that they're all equal. Heck, some of the samples which you obviously are strongly in favor of including, reached measurements of over 1000 ppm of CO2. Reasonable? Nope.
You only did one smart thing: you tried to evade simple questions that clearly poke holes in your ridiculous, uncited assertions about CO2 levels.
Here's a document which analyses Callendar:
http://onlinelibrary.wiley.com/doi/10.1111/j.2153-3490.1959.tb00023.x/pdf