Tree Stories: What the Rings in Trees Reveal About Climate Change

In the 12th episode of Climate History, co-hosts Dagomar Degroot and Emma Moesswilde interview leading tree ring scientists Amy Hessl (West Virginia University) and Valerie Trouet (University of Arizona). Both Hessl and Trouet have scoured the world to measure the growth rings in trees, which they use to uncover ancient climate changes that likely influenced the fate of past societies. In a wide ranging conversation, Trouet and Hessl describe the nature of this work and its key lessons for the present. Trouet also introduces her new book, "Tree Story," which chronicles her career and explains the basics of tree ring science to the general public.