Dirty air cuts back California crops

Photo by George Rose/Getty Images California loses up to $1 billion in crops each year because of air pollution, according to new research that looked at trends from 1980 to 2015. Table grapes — the kind for snacking — were the most vulnerable among seven crops badly affected by smog, including: wine grapes, strawberries, walnuts, peaches, nectarines, and hay. The crops lost between 2 to 22 percent of their yields as a result of smog.The results show that dirty air comes at a signif