After 75 years in temporary space, the Laboratory of Tree-Ring Research is awaiting the final touches on its new location. The lab inhabited the western part of Arizona Stadium since Andrew Douglass ...

Construction near the Math East building and the Highland Bowl will lead to a brand-new home for the Laboratory of Tree-Ring Research by the end of the year. Once completed, the Bryant Bannister ...

Thomas P. Harlan, long-time research associate and dendrochronologist at the University of Arizona’s Laboratory of Tree-Ring Research (LTRR), early member of the Southern Arizona Rescue Association, ...

Evidence of a Roman-era Southwest "megadrought" has University of Arizona climate researchers again warning water managers that Western rivers have not been historically reliable in their flow.

TUCSON, Ariz. (KGUN) — What do trees and fish have in common? It’s an important question the University of Arizona is answering. The school’s Laboratory of Tree-Ring Research (LTRR) is the world’s ...

Columbia University, New York, New York--The National Science Foundation (NSF) has awarded the Tree-Ring Laboratory of Lamont-Doherty Earth Observatory, Columbia University, a $5.5 million grant to ...