
High in the evergreen canopy of General Sherman, the world’s largest tree, researchers searched for evidence of an emerging threat to giant sequoias: bark beetles.
They descended the towering 2,200-year-old tree with good news on Tuesday.

High in the evergreen canopy of General Sherman, the world’s largest tree, researchers searched for evidence of an emerging threat to giant sequoias: bark beetles.
They descended the towering 2,200-year-old tree with good news on Tuesday.