Those committed to blaming humans for rising atmospheric CO2 sometimes admit that emitted CO2 (from any source) only stays in the air about 5 years (20% removed each year) being absorbed into natural sinks. But they then save their belief by theorizing that human emissions are “pulses” of additional CO2 which persist even when particular molecules are removed, resulting in higher CO2 concentrations. The analogy would be a traffic jam on the freeway which persists long after the blockage in removed.
A recent study by Bud Bromley puts the fork in this theory. His paper is A conservative calculation of specific impulse for CO2. The title links to his text which goes through the math in detail. Excerpts are in italics here with my bolds.
In the 2 years following the June 15, 1991 eruption of the Pinatubo volcano, the natural environment removed more CO2 than the entire…
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