More Californians are questioning why giant bottled-water sellers continue to tap the state’s dwindling water supply during the worst drought in state history and are pressuring big retailers to stop using the scarce resource. Courage Campaign, a non-profit online advocacy group, has collected more than 35,000 signatures to stop Wal-Mart, the world’s largest retailer, from sourcing water for its Great Value brand from Sacramento’s water supply.
