SAN FRANCISCO (KCBS)— A new study that counted tree rings shows California's drought is the worst in 1,200 years. The scientific study published by the Journal of the American Geophysical union looked ...

Because growing conditions vary from year to year, the rings are not uniform. The record of good (wide ring) and slow (narrow ...

The world-famous Sycamore Gap tree was at least 100 to 120 years old when it was illegally felled, experts have said. The exact age of the tree on Hadrian's Wall in Northumberland has been a matter of ...

Perhaps you’ve wandered through a forest or strolled into a neighborhood park and found tree trunks — and wondered if counting the rings on a trunk is truly a way to know the tree's age. "Most of us ...

Perhaps you’ve wandered through a forest or strolled into a neighborhood park and found tree trunks — and wondered if counting the rings on a trunk is truly a way to know the tree’s age. “Most of us ...

Nearly everyone has heard that you can determine the age of a tree by counting its rings. Now, researchers think trees can reveal other secrets, too, such as the timing of specific events dating back ...