Biologists Climb Massive Sequoia Trees to Gauge Health Amid Drought
Thousands flock to the Sequoia National Park each year to view the majestic trees that tower high above the forest.
But below, on the forest floor, there are signs of struggle as many Sequoia trees are shedding more leaves and foliage during the fourth year California's devastating drought.
And the best way to analyze the health of the trees is to climb them, which is just what biologist Anthony Ambrose does.