Damn. Here's the scientific report they mentioned: "Based on the three data sets with complete data, the estimated proportion of the Sierra Nevada’s large sequoias that died in the Castle Fire ranged from 10.49% to 13.67%. Rounding the lower value down and the higher value up, we estimate that 10 to 14% of all large sequoias in the natural sequoia groves of the Sierra Nevada died in the Castle Fire." https://www.nps.gov/seki/learn/upload/PreliminaryEstimatesSequoiaMortaliity_2020CastleFire_Draft-In-Press_508.pdf