Firefighters wrapped the base of the world’s largest tree in a fire-resistant blanket as they tried to save a famous grove of gigantic old-growth sequoias.
The U.S. Forest Service has put the brakes on a effort to thin hundreds of square miles of land in Arizona to reduce the risk of catastrophic wildfires, drawing sharp rebukes from elected officials.
When a wildfire crested the mountains near North America's largest alpine lake, embers and ash that zipped across a smoky sky pierced Lake Tahoe’s clear blue waters.