Variable C14/C12 ratio invalidates C14 dating (Talk.Origins)

Claim CD011.1:


 * Carbon dating is based on the atmospheric C14/C12 ratio, but that ratio varies. Thus the carbon dating method is not valid.

Source: Morris, Henry M. 1985. Scientific Creationism. Green Forest, AR: Master Books, pp. 162-166.

CreationWiki response:

None of the methods of calibration agree. The original content of Carbon 14 can vary by as much as 200% of the current value for the same "date." Furthermore, these calibration efforts eliminate all of these as independent dating methods since they link the various methods such that the assumptions of one affect the results of the other.

Reference: Carbon 14