Mark Emalfarb is a big fan of fungus. “There’s a fungus among us,” he says often. Emalfarb, who grew up working in his family’s landscape stone business, had his first success 30 years ago, importing ...

From stonewashed jeans without the “wash” to using more recycled cotton, Levi’s is working to squeeze wasted water from its clothes. When 20 competitors recently descended on Levi’s Eureka Innovation ...