Director with an increment borer and mountain boots Trude Haug interviews the director of Stiftelsen Det norsk arboret, Aage Paus, professor at the University of Bergen’s Department of Biological Sciences. He is a botanist and researcher specialising in paleopalynology, vegetation and climate history. Topics of the interview include establishing water supply to the planted areas and securing the Arboretum against forest fires, removing invasive western hemlock trees, and estimating the ages of trees.