"On a late autumn day, a team of forestry workers spreads out among the burned trunks of giant sequoia trees. The 1,000-year-old trees in the grove are dead but still standing, killed in an extreme wildfire that raced through Sequoia and Kings Canyon National Parks."
Extreme wildfires have destroyed about one-fifth of all giant sequoia trees. To safeguard their future, the National Park Service is planting seedlings that could better survive a hotter climate.