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 core formed by the tree's annual growth rings.

A study of tree rings in the Gaspesie's Sainte-Anne River area reveals that snowpacks have been declining noticeably in the region's mountains for nearly nine decades. The researchers say the ...

Quebec tree rings dating back nearly 200 years indicate snowpack in the Gaspésie mountains has declined considerably in ...

But few people know that the rings in trees can tell us much more than just a tree’s age. And perhaps even fewer know that there is a field of science dedicated to the study of tree rings.

Tree Rings and Sunspots Concerning the lifework of A. E. Douglass, who applies the regular variation in the growth pattern of conifers to the investigation of solar cycles and human history By J ...

Mercury pollution in the Amazon is caused by gold mining. Discover how tree core samples identify the concentration and spread of this toxin.

Tree rings can reveal more than just a tree's age. The basis of dendrochronology lies in a tree's unique pattern of growth rings. The rings form a kind of fingerprint—actually, with its ...