Dendrochronology—the art of tree-ring counting—allows us to precisely date trees. Based on the rings in its trunk, a bristlecone pine in eastern California known as Methuselah is said to be ...

In this gee-whiz science and great outdoors piece, an expert in tree-ring research shares some of the details of what trees can tell us — and whether or not their rings can reveal their age.

In grade school, our teachers taught us that tree stumps weren’t just for playing jacks. Truth be told, I’d place earthworms I’d dug up on the stump in front of my childhood house.

The tree-ring lab’s Connie Woodhouse is a great observer of the Colorado River, carver of the Grand Canyon, irrigator of the Southwest, feeder of Los Angeles.

A recent project conducted in the basin by members of the UA Laboratory of Tree-Ring Research to reconstruct historic stream flow has expanded the known record to the year ...

Researchers rely on tree rings, glaciers, and fossil records to put our current climate in context. This article is from The Spark, MIT Technology Review’s weekly climate newsletter. To receive ...

Black, a dendrochronologist, or tree-ring scientist, ... History on the landscape: What an Arizona rock sample taught scientists about climate change 250 million years ago.

Olive trees are generally understudied as a result, said Peter M. Brown, the director of Rocky Mountain Tree-Ring Research, who was not involved in the new study.

Tree rings suggest the Northern Hemisphere summer of 2023 was the hottest in 2,000 years, with temperatures exceeding those of the coldest summer in the same period by 7 degrees Fahrenheit (3.9 ...