"The California drought has killed more than 102m trees in a die-off of forests that increases the risk of catastrophic wildfires and other threats to humans, officials said on Friday.
The latest aerial survey by the US Forest Service shows there are 36m more dead trees since May in the state and there has been a 100% increase since 2015.
“These dead and dying trees continue to elevate the risk of wildfire, complicate our efforts to respond safely and effectively to fires when they do occur and pose a host of threats to life and property,” the US agriculture secretary, Tom Vilsack, said in a statement.
California has endured five years of drought marked by a record low mountain snowpack and warm temperatures. The drought has left trees thirsty and prone to infestation by bark beetles."
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