California wine country adapting to annual wildfire threat

FILE - In this Sept. 27, 2020, file photo, an air tanker drops retardant on the Glass Fire burning in Calistoga, Calif. In three of the past four years, major wildfires driven by a changing climate have devastated parts of the world-class region, leaving little doubt that it’s vulnerable to smoke, flames and blackouts during the fall. (AP Photo/Noah Berger, File)

SAN FRANCISCO — Harvest season in Northern California’s wine country is what dream weddings are made of: ripe grapevines and golden sunsets provide ceremonies an alluring backdrop that every year draws millions of visitors.