Yale Environment 360: Scientists have discovered the oldest known living tree in Europe, dating it at more than 1,075 years old. The Bosnian pine (Pinus heldreichii) — a densely branched, slow-growing tree — was found in northern Greece, high in the Pindus Mountains. A team of Swedish, German, and U.S. scientists extracted a core of the tree’s one-meter thick trunk, and counted the rings that mark its annual growth—a dating technique known as dendrochronology. They found the tree started its life in 941. “I am impressed,…

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