About Us

The Laboratory of Tree-Ring Research (LTRR) is a hub of inter-disciplinary research, teaching, and outreach excellence at the University of Arizona (UArizona). The LTRR is an academic research unit based in the College of Science. Worldwide the LTRR is a preeminent center of dendrochronology – using the information stored in the annual rings of trees to understand and quantify interactions among our Earth’s climate, ecosystems, and societies. The LTRR excels in developing and advancing novel approaches to solve scientific questions of societal relevance, and to communicate these questions, their answers and consequences to researchers, student populations (K-6,7-12, undergrad, grad), the general public, resource managers, and policymakers alike.