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.

Build a Tree-Ring Timeline by Rick Groleau Assessing the age of a living tree is straightforward enough—just extract a core from the tree's circular trunk and count the number of lines in the ...

Showing Knighton a tree ring sample, Pearson said, "We're moving backwards through time here. Here we change between A.D. and B.C., and we're into the B.C. period now, ...

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.

Climate reconstructions based on tree rings have become a major point of contention. In 1998, a climate scientist by the name of Michael Mann had the misfortune of publishing a Northern Hemisphere ...

In a new paper, the authors explain how harvesting data from tree-rings could revolutionize the study of ancient civilizations such as the Egyptian and Mayan worlds. Until now scholars have had ...

Tree ring scientist Nicole Davi is studying the remaining stands of maritime forest in the New York metro area for insights into the region’s hurricanes.

The tree rings "prove [the] climate was WARMER in Roman and Medieval times than it is now," the British newspaper the Daily Mail reported last week, "and [the] world has been cooling for 2,000 years." ...

By analyzing the tree rings from the timber used to build the ship, they establish that the ship’s planks were cut in the winter of 1448-1449. Photograph by Marc Steinmetz, VISUM/Redux.

Build a Tree-Ring Timeline by Rick Groleau If you're the skeptical type, you might raise an eyebrow when you hear that a particular Viking ship was built in the year 819.