It's popular among the highly technical trades, but a fault tree can also pinpoint problems within a small manufacturing operation. A properly done fault tree analysis, or FTA, shows relations between ...

A clearcut in Curry County. A new analysis says Oregon has lost an estimated 522,000 acres of forest cover in state and private forests since 2000 because of overly aggressive logging. (Rob Davis/The ...

New research has found that changes in tree-ring density in the Arctic may be evidence of changes in light intensity during the trees' growth. The finding has direct implications for the tree-ring ...