US wildfires have killed nearly 20% of world’s giant sequoias in two years

Blazes in western US have hit thousands of Earth’s largest trees, once considered almost fire-proof

Lightning-sparked killed thousands of giant sequoias this year, adding to a staggering two-year death toll that accounts for up to nearly a fifth of Earth’s largest trees, officials said on Friday.

Fires in Sequoia national park and the surrounding national forest that also bears the trees’ name tore through more than a third of groves in and torched an estimated 2,261 to 3,637 sequoias. Fires in the same area last year killed an unprecedented 7,500 to 10,400 of the 75,000 trees.

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