"Olive oil" is simply the oil extracted from the fruit of olive trees, but not all are created equal. The numerous varieties you might see at your local super market can be mind-boggling, and using te …

"The Salento region, in Italy's boot heel, is widely known for its olive oil. But its storied groves face an uncertain future. In 2013, a devastating plant bacterium called Xylella fastidiosa was …