These obscure wines are stepping into the spotlight

The world is blessed with more than 10,000 kinds of grapes. So why don’t we see more of them in wine stores?
That question led to the birth of an annual event called Seven % Solution. In 2012, a small group of winemakers gathered to ponder the dearth of diversity in the wine world. That year, about 93 percent of Northern California’s wine-producing regions planted just eight grape varieties: Cabernet Sauvignon, Merlot, Chardonnay, Pinot Noir, Zinfandel, Sauvignon Blanc, Syrah and Pet