The technology uses a series of mathematical calculations—the most recognizable of which is known as half-life—to estimate the age the organism stopped ingesting the isotope.Unfortunately, the amount of Carbon-14 in the atmosphere has not been steady throughout history.Radiocarbon dating uses the naturally occurring isotope Carbon-14 to approximate the age of organic materials. Often, archaeologists use graves and plant remains to date sites.Since its conception by Willard Libby in 1949, it has been invaluable to the discipline.Cosmic rays and changes in Earth’s climate can cause irregularities in the amount of Carbon-14 in the atmosphere.Humans began making an impact during the Industrial Revolution.
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Standard calibration curves are now used for more accurate readings.
These curves indicate the changes in Carbon-14 throughout the years and modifies the end result of the tests to reflect that.