Horizontal cross sections cut through a trunk of a tree can tell us a little about the history of a tree in its own time ...

Research conducted by UA researchers over the last two years has doubled the previous knowledge researchers had about climate variability in the Upper Colorado River Basin. A recent project conducted ...

The UA has plenty of special features to offer, but one of its more overlooked aspects is its abundant plant life—specifically, that of the Laboratory of Tree-ring Research. UA’s tree-ring lab right ...

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 ...

Daniel Griffin is an assistant professor at the University of Minnesota where he studies climate and ecosystem change — past and present — through data collected from tree rings. About two hours north ...