To the editor:
The 8/5/2014 "Heed the climate warnings" author says: "Atmospheric levels of CO2 exceeded 400 parts per million for the first time in Mauna Loa Observatory in Hawaii"
So what part does man-made CO2 play in increasing the earth's temperature? Practically nothing. Consider that the sun is pushing about 1400 watts per sq. meter onto the upper atmosphere, when you discount absorption losses, cloud cover and other factors, you might end up with about 150 w/m2 at the surface. Consider that the heat capacity of CO2 near the surface is about 23 times less than sun's 150w/m2 heat energy. Now consider that about 97 percent of all CO2 in the atmosphere is made by nature, and 3 percent is man-made. That leaves man with a puny 0.195 watts/m2 of input to heat us up for the scare mongers' "Thermaggedon."
Consider also that Mother Nature has a CO2 "recycling capacity" that is about 33 times greater than all the CO2 man pumps out.
Ma Nature's CO2 reservoirs located in the oceans and land areas can hold about 80 times more CO2 than what is in the atmosphere. These reservoirs are in a constant state of flux, they absorb or emit CO2, depending on cloud cover, ocean currents, etc. So it would seem reasonable that one little burp or hiccup from her massive CO2 reservoir, and/or any variation in solar energy via sun-spot activity, will probably push man's puny 3 percent atmospheric CO2 contribution into the realm of insignificance in regard to any effect on global temperatures.
Consider that Mt. Tambora ejected some 50 cubic kilometers of ash and gases into the atmosphere and caused the disastrous 1816 "Year without summer." This happened because the sun's heating rays were partially blocked by the ash. Likewise, clouds play a big part on determining how much power from the sun is absorbed by the earth. Some clouds block the sun, while others absorb heat from the earth and perform a greenhouse effect. Whether we get a net heating or net cooling of the earth depends on the type, distribution and altitude of the clouds; this is why climate models are very difficult to predict. According to the April 2014 Scientific American, we even need to be careful about reducing the amount of particles ejected into atmosphere by coal fired power plants; too much reduction will not block enough of the sun's heating rays, this too will contribute to global warming. In short, the sun has the capability to fry us, even it's dial is set to "Low."
No need to worry about man's puny contributions to the atmosphere, Ma Nature can handle them easily.