Could carbon dating be wrong

This is how carbon dating works: Carbon is a naturally abundant element found in the atmosphere, in the earth, in the oceans, and in every living creature. C is by far the most common isotope, while only about one in a trillion carbon atoms is C C is produced in the upper atmosphere when nitrogen N is altered through the effects of cosmic radiation bombardment a proton is displaced by a neutron effectively changing the nitrogen atom into a carbon isotope. The new isotope is called "radiocarbon" because it is radioactive, though it is not dangerous. It is naturally unstable and so it will spontaneously decay back into N after a period of time.
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Is Carbon Dating Accurate?

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Is carbon dating a reliable method for determining the age of things? | betriebsinformatiker.info

Radiocarbon dating is a key tool archaeologists use to determine the age of plants and objects made with organic material. But new research shows that commonly accepted radiocarbon dating standards can miss the mark -- calling into question historical timelines. Archaeologist Sturt Manning and colleagues have revealed variations in the radiocarbon cycle at certain periods of time, affecting frequently cited standards used in archaeological and historical research relevant to the southern Levant region, which includes Israel, southern Jordan and Egypt. These variations, or offsets, of up to 20 years in the calibration of precise radiocarbon dating could be related to climatic conditions. Pre-modern radiocarbon chronologies rely on standardized Northern and Southern Hemisphere calibration curves to obtain calendar dates from organic material. These standard calibration curves assume that at any given time radiocarbon levels are similar and stable everywhere across each hemisphere.
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Carbon Dating

In the wake of all the rumours of a mediaeval date, the Society's textile specialist John Tyrer has been making some enquiries whether, in. This is his report: In the Shroud was being kept inside a silver casket stored in the Sainte Chapelle, Chambery, when a fire nearly destroyed the building. The intense heat melted a corner of the casket, scorching the folded linen within, and producing the now familiar scorch marks on the Shroud. Since silver melts only at degrees centigrade, the heat inside the casket must have been intense.
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One of the most important dating tools used in archaeology may sometimes give misleading data, new study shows - and it could change whole historical timelines as a result. The discrepancy is due to significant fluctuations in the amount of carbon in the atmosphere, and it could force scientists to rethink how they use ancient organic remains to measure the passing of time. A comparison of radiocarbon ages across the Northern Hemisphere suggests we might have been a little too hasty in assuming how the isotope - also known as radiocarbon - diffuses, potentially shaking up controversial conversations on the timing of events in history.
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