Each ring on the sequoia's surface represents one year of the tree's life, so scientists can ascertain the age of the tree by counting how many rings it has. Wing says that there is always a bit ...

Well, tree-ring dating, or dendrochronology, can be this precise, and even more so. Dendrochronologists showed that an ancient wooden road uncovered in southwestern England not only was built in ...

But there's much more information to be gleaned from growth rings than simply a tree's age. This information comes to us through the science of dendrochronology. Tree rings can reveal more than ...