SACRAMENTO, Calif. — Admirers of California’s Sierra Nevada mountains are familiar with the swaths of blackened trees flanking its sprawling green forest ranges. A new University of California, Berkeley study quantifies that devastation, finding nearly a third of southern Sierra conifer forests have died in the last decade. California has seen devastating bouts of drought and record-breaking wildfire events in the last several years. From 2011-2020, a combination of fire, drought and drought-related bark beetle infestations killed 30% of forests in the Sierra Nevada mountain range between Lake…
