Formerly threatened through excess logging, sequoias are now threatened by both a combination of fire and fire suppression, along with drought and climate change. Fire suppression caused by European land management practices promotes the excessive growth of smaller trees such as fir, which can dry out in droughts, especially those fueled by climate change, and serve as a fuel load for devastating crown fires fueled by strong winds, which can kill large amounts of sequoias. One such fire, the Castle Fire of 2020, is thought to have wiped out almost 10-14% of the species' whole population, or 7500-10,600 mature trees, including potentially the King Arthur Tree, the 10th tallest known individual.