It’s been a busy couple of weeks here in The Chronicle’s Wine Dept. We published a big piece about climate change and Napa Valley last weekend, detailing why some of the valley’s most prominent winemakers believe they may no longer be able to grow Cabernet Sauvignon — that region’s lifeblood — successfully by the 2030s. Wineries like Spottswoode and Larkmead are hedging their bets by planting experimental vineyards with warm-climate grape varieties from Spain, Portugal and Italy like Touriga Nacional and Tempranillo. It’s a radical vision for the future of Napa Valley, and it’s been generating a lot of discussion…View article >