Percy writes:
The Earth's magnetic field can have an effect on the rate of C-14 production because
14C is produced by cosmic rays striking
14N in the upper atmosphere, and the varying strength of the Earth's magnetic field varies the amount of cosmic rays striking
14N atoms. Solar flares can distort the Earth's the magnetic field and also affect
14C production.
It might be worthwhile also pointing out that the amount of
14C produced has absolutely no significance when looking at
14C decay. The decay rates remain the same regardless of how much is produced.
Edited by jar, : fix sub-title