This argument was popularized by Henry Morris (1974, p.164), who used some calculations done in 1968 by Melvin Cook to get the 10,000-year figure. Whitelaw, using a greater ratio of carbon-14 production to decay, concluded that only 5000 years passed since carbon-14 started forming in the atmosphere!
The argument may be compared to filling a barrel which has numerous small holes in its sides.
Because it is radioactive, carbon 14 steadily decays into other substances.Extensive lists of correlation between radiocarbon data and tree-ring data have been published. It appears that the tree-ring chronology that has been established to adjust the raw carbon-14 determinations is a fragile structure.Our oldest living trees appear to be less than five thousand years old.The Bristlecone pine is ideal for this, because they can live to be 5,000 years old, and are among the oldest living organisms. We aren’t told where those degrees were awarded, or when.Lets assume that each tree lived for 1,000 years, one after the other; but before the first tree died the second tree had begun its life. Wikipedia has an entry for John Woodmorappe — can there be more than one? (Allowance for unlisted names in the biblical chronologies pushes back these dates, but not much).