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Sep 29, 201122950009541673 rated this title 0.5 out of 5 stars
A few months ago, I read a book about trees that says with the computer age, carbon-dating is found to be accurate only to 3 to 4 thousand years. That's logical, because forest fires and volcanic eruptions increase the carbon in the atmosphere. (Remember a recent eruption in Europe that affected our climate for a few months.) This author claims that carbon dating shows the first North American tribes were around 16,000 years ago for certainty, and possibly 18,000 years. I didn't read far enough to find out if the moon was still made of green cheese that long ago.