First of all, I will not deny that the Earth could possibly be warming, nor will I deny that the Earth could possibly be cooling. In my experience some proponents of ACW approach it with religious fanaticism yet have little or no understanding of chemistry or physics relating to such ideals. Furthermore in my opinion Climatology is a borderline bogus science. I posted a condensed opinion a few days briefly explaneing the complexities of quantitatively proving the ACW theory, and yes it is just a theory. With this being said I will attempt to explain certain actual scientific aspects to ACW without delving into the political or financial intricacies pertaining to ACW.
Atmospheric Content.
1. N2, ~78% molar mass of ~28
2. O2, ~20.94% molar mass of ~32
3. Ar, ~.93% molar mass of ~36
4. H20 vapor, ~.4% molar mass of 18 "varies upon geographic location and altitude"
5. C02, .04, molar mass of 42. (Note that the molar mass of CO2 is significantly higher then that of other gasses excluding Argon. Furthermore, the atmosphere is not a solution, it is more of a colloid then anything.)
6. CH4, .00018% molar mass of 16.4
Now, N2, O2, and Ar are not green house gasses, where as H20, CO2 and CH4 are. Atmospheric green house gasses are an aggregate of roughly .44% of atmospheric content but they vary greatly in insulation properties and man is only responsible for variations of CO2 and CH4. There is however some correlation between an increase of C02 and a corresponding increase of atmospheric H20, but it really is like the chicken or the egg deal.
CP levels of Atmospheric Greenhouse gasses
1. H2O, 1.850
2. CO2, .709
3. CH4, 2.01
The higher the CP, the greater the insulator.
Now, if one took an example of the atmosphere at roughly 1000 feet, extracted the greenhouse gasses, and then compared the content both by percentage and its total effect on aggregate CP of the respective greenhouse gasses it would be as follows.
(Note, I fudged the percentage of H20 slightly downward in order to do a base 10 calculation)
1. H2O, 90.87%
2. CO2, 9.087%
3. CH4, .04089%
A quick glance shows that water vapor is by far the most prevalent atmospheric greenhouse gas. Now we will look at percent of CP.
1. H20, 96.265%
2. CO2, 3.831%
3. CH4, .0470%
Again, Water vapor.
Per the IPCC, humans have contributed roughly 18.18% of total carbon emissions. Although I find this organization to be dubious due to past scandals, I will use their information anyways. By taking in account that humans contributed 18.18% of global CO2 emissions, and then recalculating the CP for that respective CO2 I conclude that human caused CO2 emissions are roughly .69% of total greenhouse gas CP. The only reason I even listed Methane CH4 is because someone earlier mentioned it. As you see it is insignificant.
As for climatology, as stated earlier, quantitative data pertaining to climate and weather in terms of temperatures have only existed for the past 110 or so years. Our current climate epoch is roughly 11700 years old which is directly related to the retreat of the glaciers following the Younger Dryas. Following the Younger Dryas the Earth has entered a period of fairly chaotic climatology patterns. Although there is no empirical evidence to support this,for the last 1500 observation made mainly though clergy who for the most part were the only literate people for a long period of time supports this. For about the last 1500 years, there has been maximums and minimums, for instance there was a minimum that coincided with the fall of Rome. Afterwards there was a maximum around the time of the Viking expansion up toward the renaissance, then a long minimum ranging from 1550 to 1815 called the little ice age. Finally we are currently in the modern maximum. In between these long patterns there is some speculation that there are shorter 40 periods, one 20 year cooling trend and one 20 year warming trend. As for the cause of these climate patterns I have yet to be convinced on any one cause, although I am pretty certain its not HARP or Chemtrails. One thing I am certain of, is that there has been significant climate swings both on the cold and warm end of the spectrum long before the industrial age and the subsequent human population explosion.
My skepticism.
Certain organizations and scientists, have taken data collected pertaining to climate for only .94% of the current climate epoch, then conclude that human CO2 emissions will cause the Earth to warm to near catastrophic proportions, in which the man made portion of said emissions accounts for .69% of the insulating properties of .4418% percent of the atmosphere. It goes on, they will detract, degrade, slander, silence and in some cases threaten arrest for those whom disagree. If ACW theory is so absolutely sound and its proponents so ideological pure then it ought to stand well enough on its own. I have not even touched on the poor methodology in which they conduct their climate models, or the amount of wealth and power certain people and organizations have procured over this fiasco. Now I consider myself an educated man, other then threatening my standard of living and those of my fellow citizens I have no dog in the hunt. History have proven many things, humans fare better when its warmer, worse when its colder, and maybe in 5, 500, or 5000 years the ice will again relentlessly march south.