The world's oldest living tree is "Methuselah." The tree's exact age ... the department confirmed to USA TODAY in an email. Climate change is threatening the longevity of many of the world's ...

A new long-term study reveals alarming insights into the impact of climate change on European beech (Fagus sylvatica), one of Europe's most widespread and ecologically important tree species.

Escape the delusion, the noise and pollution, The true immortals are made out of wood. They call us Bristlecone Pines. They call me Methuselah.

In case you're wondering, the tree shown in the NOVA program is not the Methuselah Tree. To protect this venerable old tree, the U.S. Forest Service refuses to give its location or identity within ...