climate change . we re on a hike in the sierra nevada mountains, but this is a tour of sequoia destruction. i m not happy about 2,000 to 3,000 more dead large sequoias. it s a big number to me. that s 3% to 5% of the remaining monarch sequoias in the world according to a preliminary report by the national park service, killed in the kmp complex fire that churned through sequoia and kings canyon national parks and the windy fire further south. that big number is on top of an even larger loss of mature sequoias last year in the castle fire, part of the sequoia
3,000 more dead large sequoias. it s a big number to me. reporter: that s 3 to 5% of the remaining monarch sequoias in the world, according to a preliminary report by the national park service, killed in the kmp complex fire that churned through sequoia and kings canyon national parks and the windy fire further south. and that big number is on top of an even larger loss of mature sequoias last year in the castle fire. part of the sequoia complex, that wildfire eviscerating 10 to 14% of the world s giant sequoia population. brigham means this just the last two years, up to a fifth of mature sequoias, trees that have stood for at least a thousand years, if not more, have been lost to wildfire. that s not sustainable. that is not getting wildfire and climate change resilient-forests. reporter: it s a conflux of concerns these scientists never