• Carbon dating is only used to date once-living things, not rocks.
• Carbon dating assumes an amount of C-14 in the living organism, but the actual amount cannot be known.
• Carbon dating assumes the ratio in the atmosphere between C-14 and C-12 remained constant over time, but this is likely inaccurate.
• Carbon dating is potentially only valid up to 80,000 years.
• The earth’s magnetic field has been decaying, and the amount of C-14 in the atmosphere would have been less in the past.
• According to D.R. Humphreys, given the deterioration of the earth’s magnetic field, the earth could not be more than 10,000 yrs old. (“The Mystery of the Earth’s Magnetic Field, ICR Impact #292).
• Before the flood, there was likely greater amount of vegetation which would have greatly affected the C-14 to C-12 ratio.
• In 1997, a group of scientists called RATE (Radioisotopes and the Age of the Earth) conducted an extensive study of fossilized wood and coal. Significant amounts of C-14 were discovered in all samples and RATE concluded the age at less than 5000 yrs old.

*[This information according to Mike Riddle, BS in Mathematics an MS in Education, as reported in The New Answers, Book 1, Edited by Ken Hamm, 2006: 79-87].