You'll start with a tree-ring sample from a living tree and, using other samples, piece together a pattern of rings that stretches back through time.

Geologists and paleontologists sample ice, rock and fossils to reconstruct ... The most familiar of these so-called biochronologies are tree rings, which form every year in response to seasonal ...

revealing its tree rings. The research is published in the journal New Phytologist. "From such a sample, you can not only tell how much the tree has grown, but it also acts as a kind of time ...

Researchers have used tree rings to track rainfall patterns on the Tibetan Plateau over the course of almost 3,500 years and found a link between major changes and the downfall of some of the most ...