Christian Science Monitor: Trees dont just provide the paper for history books. They actually write the historical records themselves.
Tree-rings, new layers of wood added to a growing tree each year, record climatic data annually throughout a trees life. Ancient trees provide a record of drought, rainfall, and other climatic variations. And that record could help scientists better understand current and future climate trends.
Dendrochronologist Edward R. Cook and his team at the Lamont-Doherty Earth Observatory of...