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Many scientists will use carbon dating test results to back up their position if the results agree with their preconceived theories.

But if the carbon dating results actually conflict with their ideas, they aren't too concerned. Thorpe, Nikos Kokkinos, Robert Morkot and John Frankish), Preface to Centuries of Darkness, 1991)So, is carbon dating accurate?

In order for carbon dating to be accurate, we must know what the ratio of carbon-12 to carbon-14 was in the environment in which our specimen lived during its lifetime.

during the industrial revolution more carbon-12 was being produced offsetting the ratio a bit).

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The recalibrated clock won’t force archaeologists to abandon old measurements wholesale, says Bronk Ramsey, but it could help to narrow the window of key events in human history.

“If you’re trying to look at archaeological sites at the order of 30,000 or 40,000 years ago, the ages may shift by only a few hundred years but that may be significant in putting them before or after changes in climate,” he says.

Carbon dating is used to work out the age of organic material — in effect, any living thing.

The technique hinges on carbon-14, a radioactive isotope of the element that, unlike other more stable forms of carbon, decays away at a steady rate.

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Unfortunately, tree ring dating is itself not entirely reliable, especially the "long chronology" employed to calibrate the carbon dating method.

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