The Kaya Identity, as posted earlier on SLB, is back for another round. see link. Apparently, even more bloggers are weighing in, with Dr. Roy Spencer posting his take on his blog, and WattsUpWithThat also having more. Dr. Spencer, for those who may not
source: Wikipedia commons
In my earlier post, I wrote that the units on both sides do indeed cancel, and in this post I will demonstrate that even when the same variable appears on each side, an equation is quite useful. The blog-blather seems to be that, if the equation reduces to CO2 = CO2, then it is useless (where CO2 is in tons per year).
A bit of background, first. In a somewhat analogous situation to the current climate scare, in which the entire Earth is said by alarmists to overheat because man's activities emit carbon dioxide, CO2, into the atmosphere, we had an actual energy disruption in the early 1980s. This was no vague, arm-waving exercise by some data-manipulating maniacs, this was hard, cold fact of oil price increase. I was a small part of that back then. But, owing to my recent graduation from college and being early in my engineering career, I did not participate in developing our version of the Kaya Identity, nor in policy discussions on which aspects were to be pursued. I was, however, on the front line for our private-sector company (multiple oil refineries, gas processing plants, an ethylene plant, various petrochemical plants) and obtaining the desired results in the most profitable manner.
Thirty-five years ago, in 1979, the oil cartel OPEC increased the price of oil dramatically, to $36 per barrel, more than double the price only a few months earlier. One of the results, in the US, was a government mandate to reduce energy consumption in the process industries, I believe the target was 25 percent.
The equation that (perhaps) was used back then, very similar to the Kaya Identity, was