Bryan Black is an Associate Professor at the University of Arizona Laboratory of Tree-Ring Research. He graduated from Penn State in 2003 with a PhD in Forest Resources. Bryan applies dendrochronology techniques to growth increments formed in the hard parts of marine and freshwater species including fish, bivalves, and corals. These aquatic chronologies are used to establish long-term patterns in productivity and their relationships to climate and to reconstruct climate prior to the start of instrumental records. Tree, fish, and bivalve chronologies are also combined across species to describe linkages among marine, freshwater, and terrestrial ecosystems and to generate multi-proxy climate histories. Bryan also uses marine and terrestrial archives to develop exactly dated histories of natural hazards including landslides, earthquakes, and tsunamis.