She pulled in detailed tree ring growth records of 12 individual evergreen trees growing throughout Arizona — six Pinus edulis, three Pinus ponderosa and three Pseudotsuga menziesii — that had ...

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.

Extreme wildfires have destroyed about one-fifth of all giant sequoia trees. To safeguard their future, the National Park Service is planting seedlings that could better survive a hotter climate.

The Michigan Champion Giant Sequoia tree is 116 feet tall and 5 feet in diameter. It was planted in 1948 by the Gray family at their property in Manistee Township on the shore of Lake Michigan.