Using tree-ring data from ancient oaks ... imperial control disintegrated as raiders looted freely across the countryside. Rome’s grip slipped. Britain entered what one archaeologist has ...

Well, tree-ring dating, or dendrochronology, can be this precise, and even more so. Dendrochronologists showed that an ancient wooden road uncovered in southwestern England not only was built in ...

By ALYSSA VAN DOORN The Outside Story The longer, warmer days of spring spark phenological changes in trees, from root to tip ...

Tree ring widths, which reflect the dry or wet conditions affecting tree growth annually, provide valuable proxy climate data from before historical recordkeeping began. Rui Guo and colleagues ...

Throughout the spring and summer, small groups roamed and plundered the countryside ... The study used oak tree-ring records to reconstruct temperature and precipitation levels in southern ...

THE CANADIAN PRESS/Alexandre Pace *MANDATORY CREDIT * Quebec tree rings dating back nearly 200 years indicate snowpack in the Gaspésie mountains has declined considerably in recent decades ...