How do you determine the age of a tree? Just count the rings, of course! One ring equals one year of growth. If you’ve ever stumbled upon a tree stump you may have even done it yourself. But if you’re ...

TREES HAVE STORIES to tell. Within their annual growth rings are records of drought and deluge, but scientists can also use them to reconstruct environmental pollution events. Tree rings can be used ...

A debate has emerged around a Chilean tree that may be 5,000 years old. A scientist in southern Chile believes he's found the world's oldest tree, a Patagonian cypress he says is over 5,000 years old ...