Tree-ring science was born at this University of Arizona laboratory in Tucson, where A.E. Douglass founded dendrochronology in 1937. In 1937 A.E. Douglass founded this lab and with it the modern science of dendrochronology, the precise reading of tree rings as a record of the past. Imagine being in a place where visiting scholars and faculty have, since the lab’s founding, coaxed stories from rings that speak to climate change, fire history, ecology, archaeology and hydrology.
Each ring is a line of evidence: a narrow band that can mark drought, a thick band that can mark a wetter year, and patterns that reach into questions about human history and the behavior of water on the landscape. Here, method and curiosity meet—laboratory benches and archives that translate a tree’s silent growth into timelines for scientists across disciplines. The work done in this building ties the slow arithmetic of annual growth to urgent questions about our environment.
Stand here for a moment and let that link sink in: the laboratory’s tools and the trees they study reach outward, connecting campus scholarship to climate, fire, ecosystems, ancient sites and the flow of water. Notice the University of Arizona campus spreading beyond these walls.