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What if that same technique yielded dates for Triassic wood (when the dinosaurs lived) at 34,000 years and dated millions-of-years-old coal, oil, and even diamonds at less than 100,000 years? Libby and others in 1949, radiocarbon dating revolutionized archaeology––and other scientific fields––by establishing robust dates for organic materials of a biological origin like wood, bone, or shell.Even with these weird––and challenging from an old-earth perspective––results, radiocarbon (or, carbon-14) dating remains one of the best tools for determining the ages of things that lived from 500 to 50,000 years ago. Carbon-14 (C) is a naturally occurring radioisotope of carbon and is found in trace amounts on Earth.Since the 1940s, scientists have used carbon dating to determine the age of fossils, identify vintages of wine and whiskey, and explore other organic artifacts like wood and ivory.The technique involves comparing the level of one kind of carbon atom—one that decays over time—with the level of another, more stable kind of carbon atom.It is produced in Earth’s atmosphere as cosmic rays hit nitrogen molecules and is then absorbed from the air by plants, which then pass it on to animals in the food chain.Carbon-14 decays to nitrogen-14 by emitting an electron and a neutrino, and it does so with a half-life of 5,730 years.The results can be as much as 150 million years different from each other! They then pick the date they like best, based upon their preconceived notion of how old their theory says the fossil should be .

In this way, items of unknown age can be tested and an age determined to a reasonable degree of accuracy. More tomorrow where we explore the concept of isochron dating and how it neatly destroys most of the rest of these ‘issues’.

Many people are under the false impression that carbon dating proves that dinosaurs and other extinct animals lived millions of years ago.

What many do not realize is that carbon dating is not used to date dinosaurs. Carbon dating is only accurate back a few thousand years.

Scientists across countless disciplines rely on it to date objects that are tens of thousands of years old. An analysis by Heather Graven, a climate-physics researcher at Imperial College London, finds that today's rate of fossil-fuel emissions is skewing the ratio of carbon that scientists use to determine an object's age.

Combustion of fossil fuels is “diluting the fraction of atmospheric carbon dioxide containing radiocarbon,” Graven told , the large amount of carbon dioxide in the atmosphere will make new organic material appear to be 1,000 years old based on today’s carbon-dating models.

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