http://www.angelfire.com/mi/dinosaurs/carbondating.html
I did a Google search for "Is radio carbon dating accurate" and got a lot of religious sites. This one, being much the same seems to use scientific data and shows the limits of RC14 dating.
I used to think RC-14 dating was proven accurate beyond a doubt. Then I read how dates are actually determined and that RC-14 is unreliable because there is so much information that is unknown about the amount of Carbon in Earth's atmosphere in the past and how much it has increased or decreased over the millenia. RC-14 dating assumes that the amount of Carbon in the atmosphere has remained constant. The only problem with this is erupting volcanoes can spew carbon into the atmosphere, (obviously increasing the carbon content), thus making the dating of specimens vary wildly depending upon from where the samples were taken. Also there is a 30,000 year limit on RC-14. So how do scientists come up with the millions of years they tack onto the age of dinosaurs and the earth itself?
Dating methods are based on 3 unprovable and questionable assumptions:
1) That the rate of decay has been constant throughout time.
2). That the isotope abundances in the specimen dated have not been altered during its history by addition or removal of either parent or daughter isotopes
3) That when the rock first formed it contained a known amount of daughter material
("Radioisotopes and the age of the earth" pg v)
We must recognize that past processes may not be occurring at all today, and that some may have occurred at rates and intensities far different from similar processes today.
( "Radioisotopes and the age of the earth" pg vii)
To know if carbon dating is accurate, we would have to know how much carbon was in the atmosphere in the beginning, and also how long it has been increasing, or decreasing. Since no one was there, no one knows for sure. It's like trying to figure out how long a candle has been burning, without knowing the rate at which it burns, or its original size.
Still it is not my intention to sway anyone over to my point of view. Look at the information and decide for yourself. Look up counter arguments for the accuracy of RC-14 dating.