If a tree's rings are studied in a lab but no one hears them, do they make noise in the climate movement? An associate professor of oboe at the University of Arizona wondered. It led her to team up ...

Horizontal cross sections cut through a trunk of a tree can tell us a little about the history of a tree in its own time ...

Palaeoclimatologist Chenxi Xu traces the sources of water in annual growth rings to identify periods of heavy rainfall or drought over centuries. I study the relationship between global warming and ...