And the tentative conclusion is -
Things change over time. More CO2, less CO2, warmer atmosphere, colder atmosphere, more snowfall, less snowfall.
Past is not necessarily prognosis. There may be a much larger cycle here, in which nobody has yet made correlations.
The effects of activities of mankind may still be extremely insignificant in relation to the other sources of climatic change.
The average American is obese- and thusly, emits various and sundry "gases." I think someday, the world will be shocked to find that we were the cause of global warming/cooling/lukewarming after all. I will be proven right, and will get the respect I deserve/crave.
I am not a lunatic.