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 ...

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.

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, ...

Tree ring analysis, or dendrochronology, is a method that uses the annual growth rings of trees to derive precisely dated environmental and chronological information. It involves sampling wood ...

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 ...

Charlotte Pearson's eyes scanned a palm-sized chunk of ancient tree. They settled on a ring that looked "unusually light," and she made a note without giving it a second thought. Three years later, ...