Nation Up to 19% of the world’s ‘irreplaceable’ giant sequoias lost to fire in about a year, study finds November 19, 2021November 19, 2021 Doyle Rice and Joshua Yeager, USA TODAY NETWORK Comments Off on Up to 19% of the world’s ‘irreplaceable’ giant sequoias lost to fire in about a year, study finds 2021 was another disastrous year for California's giant sequoias due to wildfires, federal officials announced in a report released Friday.