Climate Central: It's relatively easy for scientists to see the signature of droughts and other climate events in the prehistoric past by digging into underground or seafloor sediments, or drilling into ancient ice. In order to say exactly when these events happened, though, you need a reliable natural dating method, and even the best of these is flawed.
However, one of the most familiar of these timelines, known as radiocarbon dating, just got a lot more precise. According to a paper published in the journal...