Yosemite’s giant sequoias at risk from intense wildfire

Firefighters fight to protect redwoods in California 1:57 (CNN) — Hot, dry weather conditions complicate firefighters’ efforts to battle a wildfire in California’s Yosemite National Park that threatens a grove of giant sequoias, most of which are more than 2,000 years old. The Washburn Fire has spread to at least 4,000 acres since it was