This was posted in another science/faith group and I thought it was really interesting. It explains the latest developments in the reliability of C14 dating. I thought it would be a useful reference for people.
“An unbroken, high-resolution record of atmospheric carbon-12 and carbon-14 was found in a pair of stalagmites located within Hulu Cave near Nanjing, China, according to new research published today in Science. Because this record extends back to the last glacial period, to around 54,000 years ago, scientists are now equipped with a more accurate standard for use in radiocarbon calibration.”