Monday, September 9, 2013

Greenhouse Gases Are Good

Open Email to Sen. Cruz (TX):

Dear Sen. Cruz,   
    Thank you for your form letter of 9/6/13 on climate change.
    Unfortunately, we seem to be in a circle. I replied to that same letter on 6/27/13. If you want to see what I said at that time, refer to my blog at http://arthur-climatechange.blogspot.com.
    However, readdressing the matter from the context of your form letter, I have similar comments formulated with somewhat different wording.
    With all due respect, I remind you that responding to an adversary's fallacious statements only leads to futile discussion. This is particularly applicable with respect to claims involving climate change and your response thereto.
    First of all, the term "greenhouse gas" has incorrectly been given a negative connotation. All atmospheric gases, such as nitrogen, oxygen, argon, etc. are greenhouse gases. The term means that the presence of those gases in the atmosphere inhibits the loss of heat from the earth during nighttime hours. In other words, atmospheric gases stabilize surface temperatures. If it were not for our present atmosphere, the temperature variations on earth between night and day would be so extreme as to not allow the existence of human life, even if some sort of breathable oxygen was obtained. Simply stated, greenhouse gases are good.
    The question then develops as to whether too much of a good thing can be bad. The obvious answer is yes. If the heat insulative properties of atmospheric gases were higher than they presently are, surface temperatures on earth could be so high as to not allow the existence of human life. But that is not possible, because the insulative properties of the various atmospheric gases are what they are and will not change. This is a standard property of matter, such as the freezing and boiling points of water.
    The only possible changes are that there could be an increase or decrease in the quantities of these atmospheric (greenhouse) gases. However, that is not likely based upon historical and archaeological records of the earth and a recognition of the fact that atmospheric gases are held in place by a balance of gravitational and centrifugal forces, which is another basic property of matter.
    The mass of the atmosphere is 5×10^ 18 kg. That's 5 followed by 18 zeros. If you like tons, it's 2.5 followed by 15 zeros tons. That's a big number but carbon dioxide is only 0.04% of that. The heat resistivity (insulating properties) of the individual various atmospheric gases is roughly the same. Therefore the heat resistivity contribution of carbon dioxide is insignificant compared to the other atmospheric gases, primarily because it is present in such a small quantity.
    Bottom line. I suggest you do not accept assertions that carbon dioxide in the atmosphere is a dangerous gas and any subsequent additions through fossil fuel burning are deleterious.

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